Templeton Municipal Light and Water Plant Net Metering Policy

OBJECTIVE:
This policy serves to promote renewable electricity generation for Templeton Municipal Light & Water Plant (TMLWP) electric ratepayers by accommodating the installation of renewable electric generation facilities by its customers for the purpose of serving their own electricity needs. The objective is that this be done in a manner that is beneficial to both Templeton Light electric ratepayers and the generation customer.

AVAILABILITY:
A net metering generation facility is one that utilizes fuel cell, hydroelectric, solar or wind power to generate electricity. Said net metering facility must exist to offset partially or totally the customer’s own electrical demands. In no circumstance shall the output from a net metering generation facility be credited or sold to a third party or to another TMLWP customer.

TMLWP will enter into agreements with existing residential electric customers who intend to own and operate a net metering generation facility that has a nominal output of 10 KW AC or less. TMLWP will enter into agreements with existing non-residential electric customers who intend to own and operate net metering generation facility that has a nominal output of 10 KW AC or more, provided that TMLWP has reviewed the proposed net metering generation facility and determined that it shall not have adverse reliability or safety impacts on TMLWP operations.

The net metering generation facility must be located on property that is owned by the electric customer and operate in tandem with TMLWP’s existing electrical distribution facilities.

For non-residential installations whose nominal output exceeds 10 KW AC, said nominal output shall not exceed 80% of the electric customer’s historic (36-month) peak demand in KW AC In no circumstance shall the nominal capacity exceed 50 KW AC.

The electric customer must:
1. Read and comprehend TMLWP’s “Requirements for Interconnection of Non-Utility and Distributed Generation,
2. Provide TMLWP the appropriate signed interconnection application and one-line diagram of the proposed net metering
    generation facility,
3. Agree to pay for TMLWP’s bi-directional commercial revenue meter.

TMLWP, at its sole discretion, may limit the cumulative generation capacity of all net metering facilities within its service territory.

TMLWP may install and operate its own electric generation facility that utilizes fuel cell, hydroelectric, solar and wind power to generate electricity.

TMLWP may purchase all of the output of a new, stand-alone generation facility that utilizes fuel cell, hydroelectric, solar or wind power to generate electricity.

EQUIPMENT & OPERATION:
The electric customer shall construct, operate and maintain the net metering generation facility such that it meets or exceeds all applicable performance and safety standards including those established by the Massachusetts State Building Code, the Massachusetts Department of Public Utilities, the National Electrical Code, the Institute of Electrical & Electronics Engineers, Underwriters Laboratories, the Town of Templeton and TMLWP.

The electric customer shall provide a safety disconnect device located adjacent to TMLWP’s revenue metering equipment that shall be accessible to TMLWP personnel at all times. Said disconnect switch must be lockable via a padlock in either opened or closed positions. TMLWP shall have the option of requiring periodic testing of such a disconnect switch. TMLWP may disconnect the electric customer’s net metering generation facility at any time should it deem it necessary for the safety and stability of TMLWP’s electric distribution system. It shall be TMLWP’s sole determination as to whether or not said system is compromised.

Should the electric customer’s net metering generation facility damage the TMLWP system, said customer shall be solely responsible for any and all costs associated with repair and/or replacement of damaged TMLWP plant.

TMLWP shall not be liable, either directly or indirectly, for permitting or continuing to allow the attachment of any net metering generation facility, or for the acts or omissions by the electric customer that cause property damage, loss, injury or death to any party.

METERING:
TMLWP shall install at the sole expense of the electric customer bi-directional metering capable of registering electricity flow both delivered from and received by TMLWP. TMLWP shall be the party responsible for maintenance and testing of said bi-directional! meter.

FLOW OF ELECTRICITY & BILLING:
During any regular billing interval, should the electric customer use more Kilowatt-Hours (KWH) than that of what it feeds back to the TMLWP system, then said customer shall be billed based on the rate applicable to the electric customer’s class of service.

During any regular billing interval, should the electric customer feed back more KWH to the TMLWP system than it uses, then said customer shall be billed the minimum charge applicable to the electric customer’s class of service. Further, the electric customer’s account shall be credited for the excess KWH generated and fed back to the TMLWP system. Any such excess KWH shall carry forward from one billing interval to the next until said excess has been utilized.

For the billing interval ending during the first month following each anniversary date of net metering generation facility operation (or at the termination of electric service), should any unused credits have been accumulated during the previous 12 months, then TMLWP shall credit the electric customer’s account an amount equal to the unused credited KWH times the average Locational Marginal Price (LMP) cost (excluding transmission costs) from the previous 12 months.
Should any non-residential electric customer install a net metering generation facility that exceeds 80% of its historic (36-month) peak demand, TMLWP SHALL NOT reimburse the electric customer for any excess KWH fed back to the TMLWP system.

TERMS & CONDITIONS:
TMLWP’s terms and conditions in effect from time to time, where not inconsistent with any specific provision hereof, are part of this net metering policy.

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Templeton Municipal Light and Water Plant RED FLAG POLICY

1. POLICY
It is the policy of the Templeton Municipal Light and Water Plant (TMLWP) that information compiled on all customers and employees is to be vigorously defended against Identity Theft.

2. INTRODUCTION
This policy has been developed in accordance with the Fair and Accurate Transactions Act of 2003 (FACT Act) implemented under Section 114 of the Act to provide “Red Flag” Guidelines as well as Section 315 which provides guidance to financial institutions for responding to address discrepancy notices sent by a consumer reporting agency. It has been designed to detect, prevent, and mitigate identity theft in connection with existing customer accounts, the opening of new customer accounts, and information held on employees.

3. COVERAGE: Any account opened by a customer and/or any file opened on a full- or part-time employee.
4. TREATMENT OF SENSITIVE DATA

A. COLLECTION OF INFORMATION:
i. Employees collecting sensitive data on new customers will verify the identity of the customer for whom the account is being established by requiring the Positive Photo Identification, such as a valid current driver’s license or current passport.

ii. Employees making changes to an account of an existing customer will verify the identity of the caller as the existing customer by requiring at least one of the following:
a. Positive Photo Identification, such as a valid current driver’s license or current passport;
b. Identifying activity on the account such as last payment date and
amount, and/or
c. Social Security #.

iii. No customer account will be established or changed based upon the presentation of suspicious documents.

iv. Employees collecting sensitive data on new employees will require the following:
a. Positive Photo Identification, such as a valid current driver’s license or
current passport.
b. Proof of Residency.
c. Authorization to conduct a criminal history check.
d. Completion of Form 1-9, Employment Eligibility Verification.

B. RELEASE OF INFORMATION:
i. No employee will release information on a customer or employee to anyone other than the identified customer, employee, authorized third party contracted with TMLWP, or to a third party who has received the expressed authorization from the customer or employee. Such information may include but is not limited to:
a. Personal information such as phone listings, mailing addresses,
service addresses, marital status or medical records.
b. Financial information such as payment records, financial account
data, and wages.

ii. At no time will banking or social security information be released to anyone other than a third party contracted with the Department.

iii. All contractors of the Department who come into contact with customer or employee information must provide the Department with the following:
a. A written Red Flag Policy where required or the written equivalent, and
b. An agreement to notify the Department Immediately in the event of a security breach regarding the employees or customers of the Department.

C. STORAGE OF INFORMATION: Employees who handle sensitive data will take steps to
ensure that it is not compromised with such actions that may include but are not
limited to:
i. Locked files with limited access.
ii. Shredding all unused and/or outdated documents containing sensitive data.
iii. Password-protected computers.

D. IDENTIFICATION OF INFORMATION: To facilitate response in the event of an identity
breach emergency, the Department will store in a locked file a master list of
sensitive information including, but not limited to:
i. Type of sensitive information stored in the Department’s files, ii. Location of the stored sensitive information, iii. List of personnel with authorized access to information.

iv. List of companies contracted with the Department who have access to sensitive information and their Written Red Flag policy or equivalent.

5. PROCEDURE FOR “RED FLAGS”
E. Accounts that are subjected to alerts, notifications, or other warnings from
consumer reporting agencies or service providers such as fraud detection services,
law enforcement authorities or other persons regarding possible identity theft will
be flagged and investigated.

i. When the identity of the Customer of Record is at issue:
a. The customer will be required to show proof of identity or the
account will be terminated.
b. Any person whose identity was fraudulently used to establish an
account will not be considered liable for the charges rendered on the
account.
c. Every attempt will be made to ascertain and assess the true identity of the person who signed for the account.

ii. When the identity of the Customer of Record is not at issue but has been reported stolen in non-Department related events, the account will be flagged and no changes will be made to the account without photo identification.
F. Suspicious activity related to a covered account will immediately be reported to The General Manager and Office Manager for investigation, and the account will be flagged.

6. REPORTING OF EVENTS
G. Annual Reports:
i. The Office Manager will maintain a record of suspicious events and flagged accounts with regard to customer accounts. The Office Manager will keep a record of suspicious events with regards to employee files.
ii. An annual report of “significant events” will be made to the General Manager, including recommendations for program changes as risks and methods of identity theft evolve.

H. Incident Reports:
i. Security breaches will immediately be reported to the General Manager.
ii. Security breaches that could result in harm to a person or business will be immediately reported to the police or responsible authority.
iii. Security breaches that impact financial accounts held by financial institutions and credit card companies will be reported to these institutions so that the accounts can be monitored.
iv. Security breaches will be promptly reported to the customer or employee.

7. TRAINING
I. All Department employees will receive copies of the Red Flag Policy and will be educated on how to identify and respond to the risk of identity theft. On-going training sessions will be held in response to changes in risks and methods of identity theft.

Adopted: November 04, 2008 Municipal Light Board:
Dana Blais, Chairman
Gregg Edwards, Clerk
Gerald Skelton, Member

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Templeton Municipal Light and Water Plant Residential AMI Meter Opt-Out Policy
Adopted April 3, 2018

In 2018 the Templeton Municipal Light and Water Plant (TMLWP) began the process of updating its Automated Meter Reading (AMR) system to an Advanced Metering Infrastructure (AMI) system. This was done for several reasons, the most significant of which was operational savings which we could pass through to our electric customers. Residents reserve the right to opt-out and not have their house meter be upgraded to an AMI meter, and in this case the TMLWP will not upgrade to the electric meter to an AMI meter. Instead the TMLWP will install a solid-state electric meter in place of the existing AMR meter. This will generate unanticipated meter reading costs which will be recovered from that resident’s monthly electric bill in the form of a special meter reading charge. This additional cost is not built into the TMLWP’s electric cost-of-service rate schedules. A breakdown of the opt-out costs thru 2027 is displayed in the table below:

Opt-Out Year 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027

Meter Charge (once) $ 125.00 TBD TBD TBD TBD TBD TBD TBD TBD TBD

Customer Charge (monthly) $ 16.29 $ 16.70 $ 17.12 $ 17.55 $ 17.99 $ 18.44 $ 18.90 $ 19.37 $ 19.85 $ 20.35

Should a resident decide at some point during this process to opt-in then the TMLWP will install an AMI meter at the house free of charge and cease the extra monthly meter reading charges listed above.

Download Templeton Municipal Light and Water Plant Residential AMI Meter Opt-Out Policy in PDF Format

Templeton Municipal Light and Water Plant
Requirements for Interconnection of Non-Utility Generators And Distributed Generation

1.Introduction
1.1 Applicability
This Document (“Requirements for Interconnection of Non-Utility Generators and Distributed Generation”)
describes the process and requirements for an Interconnecting Customer to connect a power-generating facility to
the Templeton Municipal Light and Water Plant (“TMLWP”) Electric Power System (“EPS”), including discussion of technical and operating requirements, metering options, and other matters.

The procedure for momentary paralleling to the TMLWP EPS with back-up generation is described within Section
4.0 Interconnection Requirements.

If the Facility will always be isolated from the TMLWP’s EPS, (i.e., it will never operate in parallel to the
TMLWP’s EPS), then these Requirements do not apply.

1.2 Definitions
The following words and terms shall be understood to have the following meanings when used in these

Interconnection Requirements:
Anti-Islanding: Describes the ability of a Facility to avoid unintentional islanding through some form of
active control technique.

Area EPS: The TMLWP EPS. This term is used in the Institute of Electrical and Electronics Engineers
(IEEE) Standard 1547, “IEEE Standard for Interconnecting Distributed Resources with Electric Power
Systems” (“IEEE Standard 1547”).

TMLWP: Templeton Municipal Light & Water Plant (TMLWP).

TMLWP EPS: The electric power system owned, controlled or operated by the TMLWP used to provide
distribution service to its Customers.

Customer: TMLWP’s retail customer; host site or premises, may be the same as Interconnecting
Customer.

Department: The Massachusetts Department of Public Utilities (DPU0, formerly the Department of
Telecommunications and Energy (DTE).

Detailed Impact Study & Engineering Review: An engineering study, if necessary, conducted by the
TMLWP to determine substantial System Modifications to its EPS, resulting in project cost estimates for
such modifications that will be required to provide the requested interconnection service.

DG: Distributed Generation.

Facility: A source of electricity owned by the Interconnecting Customer that is located on the Interconnecting Customer’s side of the PCC, and all facilities ancillary and appurtenant thereto, including interconnection equipment, which the Interconnecting Customer requests to interconnect to the TMLWP EPS.

FERC: Federal Energy Regulatory Commission.

Good Utility Practice: Any of the practices, methods and acts engaged in or approved by a significant portion of the electric utility industry during the relevant time period, or any of the practices, methods and acts which, in the exercise of reasonable judgment in light of the facts known at the time the decision was made, could have been expected to accomplish the desired result at a reasonable cost consistent with good business practices, reliability, safety and expedition. Good Utility Practice is not intended to be limited to the optimum practice, method, or act to the exclusion of all others, but rather to be acceptable practices, methods, or acts generally accepted in the region.

In-Service Date: The date on which the Facility and System Modifications (if applicable) are complete and ready for service, even if the Facility is not placed in service on or by that date.

Interconnecting Customer: Entity who owns and/or operates the Facility interconnected to the TMLWP EPS.

Interconnection Service Agreement: An agreement for interconnection service, between the Interconnecting Customer and the TMLWP.

Islanding: A situation where electrical power remains in a portion of an electrical power system when the TMLWP’s transmission or distribution system has ceased providing power for whatever reason (emergency conditions, maintenance, etc.) Islanding may be intentional, such as when certain segregated loads in TMLWP’s premises are provided power by a Facility after being isolated from the TMLWP EPS after a power failure. Unintentional Islanding, especially past the PCC, is to be strictly avoided.

ISO-New England, Inc (“ISO-NE”): The Independent System Operator established in accordance with the NEPOOL Agreement and applicable FERC approvals, which is responsible for managing the bulk power generation and transmission systems in New England.

Isolated: The state of operating the Facility when electrically disconnected from the TMLWP EPS on the Interconnecting Customer’s side of the PCC.

Local EPS: The customer premises within which are contained the Facility. This term is used in the IEEE Standard 1547.

Metering Point: For meters that do not use instrument transformers, the point at which the billing meter is
connected. For meters that use instrument transformers, the point at which the instrument transformers are
connected.

NEPOOL: New England Power Pool.

Net Metering: A customer of the TMLWP with an on-site Facility (less than a kW size as determined by TMLWP present policy and tariff) exercising the option to run the meter backward and thus choosing to receive a credit from the TMLWP equal to the average monthly market price of generation per kilowatt hour in any month during which there was a positive net difference between kilowatt hours generated and consumed.

Non-Islanding: Describes the ability of a Facility to avoid unintentional islanding through the operation of its interconnection equipment.

NPCC: Northeast Power Coordinating Council.

On-Site Generating Facility: A class of Interconnecting Customer-owned generating Facilities with peak capacity below the present policy limit of TMLWP.

Parallel: The state of operating the Facility when electrically connected to the TMLWP EPS (sometimes known as grid-parallel).

Parties: The TMLWP and the Interconnecting Customer.

Point of Common Coupling (PCC): The point where the Interconnecting Customer’s local electric power system connects to the TMLWP EPS, such as the electric power revenue meter or premises service transformer. See the TMLWP for the location at a particular Interconnecting Customer site.

Point of Delivery: A point on the TMLWP EPS where the Interconnecting Customer makes capacity and energy available to the TMLWP. The Point of Delivery shall be specified in the Interconnection Service Agreement.

Point of Receipt: A point on the TMLWP EPS where the TMLWP delivers capacity and energy to the Interconnecting Customer. The Point of Receipt shall be specified in the Interconnection Service Agreement.

Radial Distribution Circuit: Electrical service from an EPS consisting of one primary circuit extending from a single substation or transmission supply point arranged such that the primary circuit serves Interconnecting Customers in a particular local area.

Screen(s): Criteria by which the TMLWP will determine if a proposed Facility’s installation will adversely impact the TMLWP EPS in the Processes as set forth in Section 3.0.

System Modification: Modifications or additions to distribution-related TMLWP facilities that are integrated with the TMLWP EPS for the benefit of the Interconnecting Customer.

Unintentional Islanding: A situation where the electrical power from the Facility continues to supply a portion of the TMLWP EPS past the PCC when the TMLWP’s transmission or distribution system has ceased providing power for whatever reason (emergency conditions, maintenance, etc.).

Witness Test: The TMLWP’s right to witness the commissioning testing. Commissioning testing is defined in IEEE Standard 1547.

1.3 Forms and Agreements
The following documents for the interconnection process are included as Exhibits:
     1. Application Forms (Exhibit A)

     2. Drawings (Exhibit B)

          – Inverter-based DG Systems (up to 10kW)
          – Single-Phase Non-Inverter Based DG System (up to 60kW)
          – Three-Phase Non-Synchronous Generators (up to 60kW)
          – Three-Phase Generators (60kW – 1000kW)
          – Three-Phase Generators (1000kW – 6000kW)

2.0 Basic Understandings
Interconnecting Customer intends to install a Facility on the Customer’s side of the PCC that will be connected electrically to the TMLWP EPS and operate in parallel, synchronized with the voltage and frequency maintained by the TMLWP during all operating conditions. It is the responsibility of the Interconnecting Customer to design, procure, install, operate, and maintain all necessary equipment on its property for connection to the TMLWP EPS. The Interconnecting Customer and the TMLWP shall enter into an Interconnection Service Agreement to provide for parallel operation of an Interconnecting Customer’s Facility with TMLWP EPS. If the Interconnecting Customer is not the Customer, a Third Party Owner Agreement must be signed and included as an attachment to the Interconnection  Service Agreement.

The interconnection of the Facility with the TMLWP EPS must be reviewed for potential impact on the TMLWP EPS and meet the technical requirements in Section 4.0, and must be operated as described under Section 6.0 In order to meet these requirements, an upgrade or other modifications to the TMLWP EPS may be necessary. Subject to the requirements contained in this Document, the TMLWP or its Affiliate shall modify the TMLWP EPS accordingly.

Unless otherwise specified, the TMLWP will build and own, as part of the TMLWP EPS, all facilities necessary to interconnect the TMLWP EPS with the Facility up to and including terminations at the PCC. The Interconnecting Customer shall pay all System Modification costs. The Interconnecting Customer should consult the TMLWP before designing, purchasing and installing any generation equipment, in order to verify the nominal utilization voltages, frequency, and phase characteristics of the service to be supplied, the capacity available, and the suitability of the proposed equipment for operation at the intended location. Attempting to operate a generator at other than its nameplate characteristics may result in unsatisfactory performance or, in certain instances, injury to personnel and/or damage to equipment.

The Interconnecting Customer will be responsible for ascertaining from the TMLWP, and the TMLWP will diligently cooperate in providing, the service characteristics of the TMLWP EPS at the proposed PCC. The TMLWP will in no way be responsible for damages sustained as a result of the Interconnecting Customer’s failure to ascertain the service characteristics at the proposed PCC.

The Facility should operate in such a manner that does not compromise, or conflict with, the safety or reliability of the TMLWP EPS. The Interconnecting Customer should design its equipment in such a manner that faults or other disturbances on the TMLWP EPS do not cause damage to the Interconnecting Customer’s equipment.

Authorization to interconnect will be provided once the Interconnecting Customer has met all terms of the interconnection process as outlined herein. These Requirements do not cover general distribution service needed to serve the Interconnecting Customer.

TMLWP’s most common primary distribution voltage is 13.8 kV. The majority of the distribution circuits are “effectively grounded” and are used for four-wire distribution (phase to neutral) connected loads. Transmission voltages are 69 kV. Contact TMLWP for information on the specific circuit that will serve an Interconnecting Customer’s proposed facility. TMLWP maintains effective grounding on most of its distribution systems as defined by IEEE Std. 142.

3.0 Process Overview
All proposed new sources of electric power without respect to generator ownership, dispatch control, or prime mover that plan to operate in parallel with the TMLWP EPS must submit a completed application and pay the appropriate application fee to the TMLWP with which it wishes to interconnect. The application will be acknowledged by the TMLWP, and the Interconnecting Customer will be notified of the application’s completeness.

The Standard Process for review and approval is as follows:

     a. The TMLWP will conduct an initial review that includes a scoping meeting/discussion with the
     Interconnecting Customer (if necessary) to review the application. After the scoping meeting the TMLWP
     will provide pertinent information such as:

          • The available fault current at the proposed location;
          • The existing peak loading on the lines in the general vicinity of the Facility;
          • The configuration of the distribution lines.

     b. TMLWP provides a cost estimate for a Detailed Impact Study and Engineering Review (if necessary). An
     estimate of the time to complete the Impact Study will also be provided.

     c. Once the Interconnecting Customer executes an Agreement and pays pursuant to the terms thereof, the
     TMLWP will conduct the Impact Study and Engineering Review.

     d. If the TMLWP determines, in accordance with Good Utility Practice, that the System Modifications to the
     TMLWP EPS are not substantial, the Impact Study and Engineering Review will determine the scope and cost of
     the modifications as defined in Section 5.0. If the TMLWP determines, in accordance with Good Utility
     Practice, that the System Modifications to the TMLWP EPS are substantial, the Impact Study and Engineering
     Review will produce an estimate for the modification costs (within ±25%).

     e. Upon completion of any necessary studies, the TMLWP shall send the Interconnecting Customer an
     executable Interconnection Service Agreement including a quote for any required System Modifications and
     reasonable Witness Test costs.

     f. Interconnecting Customer returns signed Interconnection Service Agreement and pays estimate.

     g. Interconnecting Customer completes installation and TMLWP completes System Modifications, if required.

     h. TMLWP inspects completed installation for compliance with requirements and attends Witness Test,
     if required.

     i. Interconnecting Customer sends written notification of completion of installation to TMLWP and intent to
     generate electricity.

4.0 Interconnection Requirements

4.1 General Design Considerations

Interconnecting Customer shall design and construct the Facility in accordance with the applicable manufacturer’s recommended maintenance schedule, in compliance with all aspects of the TMLWP’s requirement. Interconnecting Customer agrees to cause its Facility to be constructed in accordance with applicable specifications that meet or exceed those provided under this Section of these Requirements.

4.1.1 Transient Voltage Conditions

Because of unusual events in the TMLWP’s EPS, there will be transient voltage fluctuations, which will result in voltages exceeding the limits of the stated and standard ranges. These transient voltage fluctuations, which generally last only a few milliseconds, arise due to EPS disturbances including, but not limited to, lightning strikes, clearing of faults, and other switching operations. The magnitude of transient voltage fluctuations varies with EPS configuration, grounding methods utilized, local short circuit availability, and other parameters, which vary from point-to-point and from time-to-time on the distribution EPS.

The fluctuations may result in voltages exceeding the limits of the stated ranges and occur because of EPS disturbance, clearing of faults and other switching operations. These unavoidable transients are generally of too short duration and insufficient magnitude to have any adverse effects on general service applications. They may, however, cause malfunctions in equipment highly sensitive to voltage changes, and protective devices may operate to shut down such devices. The magnitude, duration and frequency of transient fluctuations will vary due to EPS configuration and/or  circuit arrangement. In addition, disturbances of indeterminate magnitude and duration may occur on infrequent occasions due to short circuits, faults, and other unpredictable conditions. Transient voltages should be evaluated in the design of the Facility.

4.1.2 Noise and Harmonics

The introduction of abnormal noise/harmonics can cause abnormal neutral current flow, and excessive heating of electrical equipment. The permissible level of harmonics is dependent upon the voltage level and short circuit ratio at a given location. IEEE Standard 1547 provides these levels at the PCC. In requiring adherence to IEEE Standard 1547 the TMLWP is in no way making a recommendation regarding the level of harmonics that a given piece of equipment can tolerate nor is it making a recommendation as to the permissible level in the Interconnecting Customer’s Facility.

4.1.3 Frequency

The interconnected electric power system in North America, which is maintained at 60 hertz (“Hz”) frequency on its alternating current services, is subject to certain deviations. The usual maximum instantaneous deviation from the standard 60 Hz is ±2/10 cycle (±0.33%), except on infrequent occasions when the deviation may reach ±1/10 cycle (±0.17%). The usual normal deviation is approximately ±1/20 cycle (±0.083%). These conditions are subject to occur at any time of the day or night and should be considered in the design of the Facility. All are measured on a 60 Hz base.

4.1.4 Voltage Level

All electricity flow across the PCC shall be in the form of single-phase or three-phase 60 Hz alternating current at a  voltage class determined by mutual agreement of the Parties.

4.1.5 Machine Reactive Capability

Facilities less than 1 megawatt (“MW”) will not be required to provide reactive capability, except as may be provided  by the retail rate schedule under which the Customer takes service.

Facilities greater than or equal to 1 MW interconnected with the TMLWP EPS may be required to provide reactive capability to regulate and maintain EPS voltage at the PCC as per NEPOOL requirements. The TMLWP and NEPOOL shall establish a scheduled range of voltages to be maintained by the Facility. The reactive capability requirements shall be  reviewed as part of the Impact Study and Engineering Review.

The power factor (PF) for Renewable Energy Sources must be measured at the point of interconnection, which is typically, but not always, the metering point and be PF > 0.95 under all kW (real power) loading conditions.

4.2 Protection Requirements

4.2.1 General Requirements

Any Facility desiring to interconnect with the TMLWP EPS or modify an existing interconnection must meet minimum  specifications, where applicable, as set forth in the following documents and standards and requirements in this Section.

          • IEEE Standard 1547, “IEEE Standard for Interconnecting Distributed Resources with Electric Power
            Systems.”

          • UL Standard 1741, “Inverters, Converters and Charge Controllers for Use in Independent Power Systems.”

          • IEEE Standard 929, “IEEE Recommended Practice for Utility Interface of Photovoltaic (PV) Systems.”

The specifications and requirements listed herein are intended to mitigate possible adverse impacts caused by the Facility on the TMLWP’s equipment and personnel and on other Interconnecting Customers of the TMLWP. They are not intended to address protection of the Facility itself or its internal load. It is the responsibility of the Facility to comply with the requirements of all appropriate standards, codes, statutes and authorities to protect itself and its loads.

The TMLWP shall not be responsible for the protection of the Facility. The Facility shall be responsible for protection of its system against possible damage resulting from parallel operation with the TMLWP so long as the TMLWP adheres to Good Utility Practice. If requested by the Interconnecting Customer, the TMLWP will provide system protection information for the line terminal(s) directly related to the interconnection. This protection information contained herein is provided exclusively for use by the Interconnecting Customer to evaluate protection of its Facility during parallel operation.

At its sole discretion, the TMLWP may consider approving alternatives that satisfy the intent of the requirements contained in this Section.

4.2.2 Protection Requirements

All Facilities must meet performance requirements set forth in relevant sections of IEEE Standard 1547. The following italicized text is excerpted from IEEE Standard 1547. The numbering is also from IEEE Standard 1547 and therefore is not in sequence with the “TMLWP Requirements for Interconnection Non-Utility Generators and Distributed Generation” numbering.

          4.1.1 Voltage regulation
          The DR [distributed resource] shall not actively regulate the voltage at the PCC [unless required by
NEPOOL’s operating procedures]. The DR shall not cause the Area EPS service voltage at other Local
EPSs to go outside the requirements of A SI C84.1-1995, Range A.

          4.1.2 Integration with Area EPS grounding
          The grounding scheme of the DR interconnection shall not cause overvoltages that exceed the rating of
the equipment connected to the Area EPS and shall not disrupt the coordination of the ground fault
protection on the Area EPS.

          4.1.3 Synchronization
          The DR unit shall parallel with the Area EPS without causing a voltage fluctuation at the PCC greater
than 5% of the prevailing voltage level of the Area EPS at the PCC, and meet the flicker requirements
of 4.3.2.

          4.1.8.2 Surge withstand performance
          The interconnection system shall have the capability to withstand voltage and current surges in
accordance with the environments defined in IEEE Std C62.41.2-2002 or IEEE C37.90.1-2002 as applicable.

          4.2 Response to Area EPS abnormal conditions
          Abnormal conditions can arise on the Area EPS that require a response from the connected DR. This
response contributes to the safety of utility maintenance personnel and the general public, as well
as the avoidance of damage to connected equipment, including the DR. All voltage and frequency
parameters specified in these subclauses shall be met at the PCC, unless otherwise stated.

          4.2.1 Area EPS faults
          The DR unit shall cease to energize the Area EPS for faults on the Area EPS circuit to which it is
connected.

          4.2.2 Area EPS reclosing coordination
          The DR shall cease to energize the Area EPS circuit to which it is connected prior to reclosure by
the Area EPS.

          4.2.3 Voltage
          The protection functions of the interconnection system shall detect the effective (rms) or fundamental
frequency value of each phase-to-phase voltage, except where the transformer connecting the Local
EPS to the Area EPS is a grounded wye-wye configuration, or single phase installation, the phase-to-
neutral voltage shall be detected. When any voltage is in a range given in Table 1, the DR shall
cease to energize the Area EPS within the clearing time as indicated. Clearing time is the time between
the start of the abnormal condition and the DR ceasing to energize the Area EPS. For DR less than or
equal to 30 kW in peak capacity, the voltage set points and clearing times shall be either fixed or field
adjustable.
For DR greater than 30 kW the voltage set points shall be field adjustable.

The voltages shall be detected at either the PCC or the point of DR connection when any of the
following conditions exist:

(a) The aggregate capacity of DR systems connected to a single PCC is less than or equal to 30 kW,
(b) the interconnection equipment is certified to pass a non-islanding test for the system to which
it is to be connected,
(c) the aggregate DR capacity is less than 50% of the total Local EPS minimum annual integrated
electrical demand for a 15 minute time period, and export of real or reactive power by the DR
to the Area EPS is not permitted.

          4.2.4 Frequency
          When the system frequency is in a range given in Table 2, the DR shall cease to energize the Area EPS
within the clearing time as indicated. Clearing time is the time between the start of the abnormal
condition and the DR ceasing to energize the Area EPS. For DR less than or equal to 30 kW in peak
capacity, the frequency set points and clearing times shall be either fixed or field adjustable. For DR
greater than 30 kW, the frequency set points shall be field adjustable.

Adjustable under-frequency trip settings shall be coordinated with Area EPS operations.


         

          4.2.5 Loss of synchronism
          Loss of synchronism protection is not required except as necessary to meet 4.3.2.

          4.2.6 Reconnection to Area EPS
          After an Area EPS disturbance, no DR reconnection shall take place until the Area EPS voltage is
within Range B of A SI C84.1-1995, Table 1, and frequency range of 59.3Hz to 60.5Hz.

The DR interconnection system shall include an adjustable delay (or a fixed delay of five minutes)
that may delay reconnection for up to five minutes after the Area EPS steady-state voltage and
frequency are restored to the ranges identified above.

          4.3.1 Limitation of dc injection
          The DR and its interconnection system shall not inject dc current greater than 0.5% of the full
rated output current at the point of DR connection.

          4.3.2 Limitation of flicker induced by the DR
          The DR shall not create objectionable flicker for other customers on the Area EPS.

          4.3.3 Harmonics
          When the DR is serving balanced linear loads, harmonic current injection into the Area EPS at the
PCC shall not exceed the limits stated in Table 3 IEEE Std 1547. The harmonic current injections
shall be exclusive of any harmonic currents due to harmonic voltage distortion present in the
Area EPS without the DR connected.

          4.4.1 Unintentional islanding
          For an unintentional island in which the DR energizes a portion of the Area EPS through the PCC,
the DR interconnection system shall detect the island and cease to energize the Area EPS within
two seconds of the formation of an island.

4.2.2.1 Inverter-Based Facilities (10kW or less)
     
a. External Disconnect Switch: TMLWP shall require an external disconnect switch (or comparable
device by mutual agreement of the Parties) at the PCC with the TMLWP or at another mutually
agreeable point that is accessible to TMLWP personnel at all times and that can be opened for
isolation if the switch is required.

The switch shall be gang operated, have a visible break when open, be rated to interrupt the
maximum generator output and be capable of being locked open, tagged and grounded on the
TMLWP side by TMLWP personnel. The visible break requirement can be met by opening the
enclosure to observe the contact separation. The TMLWP shall have the right to open this
disconnect switch in accordance with these Interconnection Requirements.

4.2.2.2 All Other Facilities (on-Inverter Based, more than 10kW)

     4.2.2.2.1 General Requirements

          a. Non Export Power: If the Parties mutually agree that non-export functionality will be part of the
              interconnection protection equipment then it will include one of the following:

              (1) a reverse power relay with mutually agreed upon delay intervals, or

              (2) a minimum power function with mutually agreed upon delay intervals, or

              (3) other mutually agreeable approaches, for example, a comparison of nameplate rating versus
                   certified minimum Customer premises load.

          b. The ISO-NE is responsible for assuring compliance with NPCC criteria. For the interconnection of
              some larger units, the NPCC criteria may additionally require:

              NPCC Protective Relaying Requirements: The TMLWP may require the Facility to be equipped
              with two independent, redundant relaying systems in accordance with NPCC criteria, where
              applicable, for the protection of the bulk power system if the interconnection is to the bulk power
              system or if it is determined that delayed clearing of faults within the Facility adversely affects
              the bulk power system.

              NPCC Requirements: During system conditions where local area load exceeds system generation,
              NPCC Emergency Operation Criteria requires a program of phased automatic under frequency load
              shedding of up to 25% of area load to assist in arresting frequency decay and to minimize the
              possibility of system collapse. Depending on the point of connection of the Facility to the TMLWP’s
              EPS and in conformance with the NPCC Emergency Operating Criteria, the Facility may be required
              to remain connected to the EPS during the frequency decline to allow the objectives of the automatic
              load shedding program to be achieved, or to otherwise provide compensatory load reduction,
              equivalent to the Facility’s generation lost to the system, if the Interconnecting Customer elects 
              to disconnect the Facility at a higher under-frequency set point.

          c. Disconnect Switch: The Facility shall provide a disconnect switch (or comparable device mutually
              agreed upon by the Parties) at the point of Facility interconnection that can be opened for isolation.
              The switch shall be in a location easily accessible to TMLWP personnel at all times. The switch shall be
              gang operated, have a visible break when open, be rated to interrupt the maximum generator
              output and be capable of being locked open, tagged and grounded on the TMLWP side by TMLWP
              personnel. The visible break requirement can be met by opening the enclosure to observe the contact
              separation. The TMLWP shall exercise such right in accordance with Section 7.0 of these Requirements.

     4.2.2.2.2 Requirements for Induction and Synchronous Generator Facilities

          a. Interconnection Interrupting Device: An interconnection Interrupting Device such as a circuit breaker
              shall be installed to isolate the Facility from the TMLWP’s EPS. If there is more than one Interrupting
              Device, this requirement applies to each one individually. The Interconnection Interrupting Device must
              be capable of interrupting the current produced when the Facility is connected out of phase with the
              TMLWP’s EPS, consistent with Section 4.1.8.3 of IEEE Standard 1547 which states, “the interconnection
              system paralleling-device shall be capable of withstanding 220% of the interconnection system rated
              voltage.”

          b. Synchronizing Devices: The Interconnecting Customer shall designate one or more Synchronizing
              Devices such as motorized breakers, contactor/breaker combinations, or a fused contactor (if
              mutually agreeable) to be used to connect the Facility’s generator to the TMLWP’s EPS. This
              Synchronizing Device could be a device other than the interconnection Interrupting Device. The
              Synchronizing Device must be capable of interrupting the current produced when the Facility is  
              connected out of phase with the TMLWP’s EPS, consistent with Section 4.1.8.3 of IEEE Standard 1547
              which states, “the interconnection system paralleling-device shall be capable of withstanding 220% of
              the interconnection system rated voltage.”

          c. Transformers: The TMLWP reserves the right to specify the winding connections for the transformer
              between the TMLWP’s voltage and the Facility’s voltage (“Step-Up Transformer”) as well as whether
              it is to be grounded or ungrounded at the TMLWP’s voltage. In the event that the transformer
              winding connection is grounded-wye / grounded-wye the TMLWP reserves the right to specify whether
              the generator stator is to be grounded or not grounded. The Interconnecting Customer shall be
              responsible for procuring equipment with a level of insulation and fault-withstand capability compatible
              with the specified grounding method.

          d. Voltage relays: Voltage relays shall be frequency compensated to provide a uniform response in the
              range of 40 to 70 Hz.

          e. Protective Relaying Redundancy: For induction generators greater than 1/15 of on-site minimum
              verifiable load that is not equipped with on-site capacitors or that is greater than 200 kW, and for all
              synchronous generators, protective relays utilized by the Facility shall be sufficiently redundant and
              functionally separate so as to provide adequate protection, consistent with TMLWP practices and
              standards, upon the failure of any one component.

          f. Protective Relay Hard-Wire Requirement: Unless authorized otherwise by the TMLWP, protective
              relays must be hardwired to the device they are tripping. Further, interposing computer or
              programmable logic controller or the like is not permitted in the trip chain between the relay and
              the device being tripped.

          g. Protective Relay Supply: Where protective relays are required in this Section, their control circuits
              shall be DC powered from a battery/charger system or a UPS. Solid-state relays shall be self-powered,
              or DC powered from a battery/charger system or a UPS. If the Facility uses a TMLWP-acceptable
              non-latching interconnection contactor, AC powered relaying shall be allowed provided the relay and
              its method of application are fail safe, meaning that if the relay fails or if the voltage and/or
              frequency of its AC power source deviate from the relay’s design requirements for power, the relay
              or a separate fail-safe power monitoring relay acceptable to the TMLWP will immediately trip the
              generator by opening the coil circuit of the interconnection contactor.

          h. Current Transformers (“CT”): CT ratios and accuracy classes shall be chosen such that secondary
              current is less than 100 amperes and transformation errors are consistent with TMLWP practices.
              CT’s used for revenue class metering must have a secondary current of 20 amperes or less.

          i. Voltage Transformers (“VT”)s and Connections: The Facility shall be equipped with a direct voltage
             connection or a VT, connected to the TMLWP side of the Interrupting Device. The voltage from this VT
             shall be used in an interlock scheme, if required by the TMLWP. For three-phase applications, a VT for
             each phase is required. All three phases must be sensed either by three individual relays or by one relay
             that contains three elements. If the voltage on any of the three phases is outside the bounds specified
             by the TMLWP the unit shall be tripped.

             If the Facility’s Step-Up Transformer is ungrounded at the TMLWP voltage, this VT shall be a single
             three-phase device or three single-phase devices connected from each phase to ground on the TMLWP’s
             side of the Facility’s Step-Up Transformer, rated for phase-to-phase voltage and provided with two
             secondary windings. One winding shall be connected in open delta, have a loading resistor to prevent
             ferroresonance, and be used for the relay specified in these requirements.

     4.2.2.2.3 Additional Requirements for Synchronous Generator Facilities

          a. Ungrounded Transformers: If the Facility’s Step-Up Transformer connection is ungrounded, the
              Facility shall be equipped with a zero sequence over-voltage relay fed from the open delta of the
              three-phase VT.

          b. High-Speed Protection: The Facility may be required to use high-speed protection if time-delayed
              protection would result in degradation in the existing sensitivity or speed of the protection systems
              on the TMLWP’s EPS.

          c. Breaker Failure Protection: The Facility may be required to be equipped to provide local breaker
              failure protection which may include direct transfer tripping to the TMLWP’s line terminal(s) in
              order to detect and clear faults within the Facility that cannot be detected by the TMLWP’s back-up
              protection.

          d. Communications Channels: The Interconnecting Customer is responsible for procuring any
              communications channels necessary between the Facility and the TMLWP’s stations, and for providing
              protection from transients and over-voltages at all ends of these communication channels. The
              Interconnecting Customer will also bear the ongoing cost to lease these communication channels.
              Examples include, but are not limited to, connection to a line using high-speed protection, transfer
              tripping, generators located in areas with low-fault currents, or back up for generator breaker failure.

4.2.3 Protection System Testing and Maintenance

The TMLWP shall have the right to witness the commissioning testing as defined in IEEE Standard 1547 at the
completion of construction and to receive a copy of all test data. The Facility shall be equipped with whatever
equipment is required to perform this test.

Testing typically includes, but is not limited to:

     • CT and CT circuit polarity, ratio, insulation, excitation, continuity and burden tests,
     • VT and VT circuit polarity, ratio, insulation and continuity tests,
     • Relay pick-up and time delay tests,
     • Functional breaker trip tests from protective relays,
     • Relay in-service test to check for proper phase rotation and magnitudes of applied currents and voltages,
     • Breaker closing interlock tests, and
     • Paralleling and disconnection operation.

Prior to final approval by the TMLWP or anytime thereafter, the TMLWP reserves the right to test the generator
relaying and control related to the protection of the TMLWP’s EPS.

The Interconnecting Customer has the full responsibility for the proper periodic maintenance of its generating
equipment and its associated control, protective equipment and interrupting devices. The Interconnecting
Customeris responsible for the periodic maintenance of those relays, interrupting devices, control schemes, and
batteries that involve the protection of the TMLWP’s EPS. A periodic maintenance program, mutually agreeable to
both the TMLWP and to the Interconnecting Customer is to be established in each case. The TMLWP shall have the right to monitor the periodic maintenance performed.

For relays installed in accordance with the NPCC Criteria for the Protection of the Bulk Power System,
maintenance intervals shall be in accordance with such criteria.

4.2.4 Protection Requirements – Momentary Paralleling of Standby Generators

Protective relays to isolate the Facility for faults in the TMLWP EPS are not required if the paralleling operation is
automatic and takes place for less than one-half of a second. An Interrupting Device with a half-second timer (30
cycles) is required as a fail-safe mechanism.

Parallel operation of the Facility with the TMLWP EPS shall be prevented when the TMLWP’s line is dead or out of
phase with the Facility.

The control scheme for automatic paralleling must be submitted by the Interconnecting Customer for review and
acceptance by the TMLWP prior to the Facility being allowed to interconnect with the TMLWP EPS.

4.2.5 Protection System Changes

The Interconnecting Customer must provide the TMLWP with reasonable advance notice of any proposed changes
to be made to the protective relay system, relay settings, operating procedures or equipment that affect the
interconnection. The TMLWP will determine if such proposed changes require re-acceptance of the interconnection per the requirements of this Section.

In the future, should the TMLWP implement changes to the EPS to which the Facility is interconnected, the
Interconnecting Customer will be responsible at its own expense for identifying and incorporating any necessary
changes to its protection equipment. These changes to the Facility’s protection equipment are subject to review and approval by the TMLWP.

5.0 Responsibility for Costs of Interconnecting a Facility

     5.1 Review and Study Costs

     The Interconnecting Customer shall be responsible for the reasonably incurred costs of the review by the
     TMLWP and any interconnection studies and engineering reviews conducted to determine the requirements of
     interconnecting a Facility with the TMLWP EPS.

     5.2 Interconnection Equipment Costs

     The Interconnecting Customer shall be responsible for all costs associated with the installation and
     construction of the Facility and associated interconnection equipment on the Interconnecting Customer’s
     side of the PCC.

     5.3 System Modification Costs

     The Interconnecting Customer shall also be responsible for all costs reasonably incurred by TMLWP attributable
     to the proposed interconnection project in designing, engineering, constructing, operating and maintaining
     the System Modifications.

     5.4 Separation of Costs

     Should the TMLWP combine the installation of System Modifications with additions to the TMLWP’s EPS to
     serve other customers or interconnecting customers, the TMLWP shall not include the costs of such separate
     or incremental facilities in the amounts billed to the Interconnecting Customer for the System Modifications
     required. The Interconnecting Customer shall only pay for that portion of the interconnection costs resulting
     solely from the System Modifications required to allow for safe, reliable parallel operation of the Facility
     with the TMLWP EPS.

     5.5 Normal Payment Procedure

     All application, study fees and System Modification costs (except as noted below) are due in full prior to the
     execution of the work as outlined in these Requirements. At the request of the Interconnecting Customer, the
     TMLWP will break the costs into phases in which the costs will be collected prior to TMLWP expenditures
     for each phase of the engineering study and/or construction including ordering equipment.

     5.6 Security and Creditworthiness

     In order for the TMLWP to agree to any payment plan where some work may be performed in advance of
     payment, the TMLWP may require the Interconnecting Customer to provide evidence of creditworthiness.

6.0 Operating Requirements

     6.1 General Operating Requirements

     Interconnecting Customer shall operate and maintain the Facility in accordance with the applicable
     manufacturer’s recommended maintenance schedule, in compliance with all aspects of the TMLWP’s
     Interconnection Requirements. The Interconnecting Customer will continue to comply with all applicable
     laws and requirements after interconnection has occurred. In the event the TMLWP has reason to believe
     that the Interconnecting Customer’s installation may be the source of problems on the TMLWP EPS, the
     TMLWP has the right to install monitoring equipment at a mutually agreed upon location to determine
     the source of the problems. If the Facility is determined to be the source of the problems, the TMLWP
     may require disconnection.
    
     6.2 No Adverse Effects; Non-interference

     TMLWP shall notify Interconnecting Customer if there is evidence that the operation of the Facility could
     cause disruption or deterioration of service to other Customers served from the same TMLWP EPS or if
     operation of the Facility could cause damage to TMLWP EPS. The deterioration of service could be, but is
     not limited to, harmonic injection in excess of IEEE Standard 1547, as well as voltage fluctuations caused
     by large step changes in loading at the Facility.

     The TMLWP will operate the EPS in such a manner so as to not unreasonably interfere with the operation
     of the Facility. The Interconnecting Customer will protect itself from normal disturbances propagating
     through the TMLWP EPS, and such normal disturbances shall not constitute unreasonable interference
     unless the TMLWP has deviated from Good Utility Practice. Examples of such disturbances could be, but
     are not limited to, single-phasing events, voltage sags from remote faults on the TMLWP EPS, and outages
     on the TMLWP EPS.

     6.3 Safe Operations and Maintenance

     Each Party shall operate, maintain, repair, and inspect, and shall be fully responsible for, the facility or
     facilities that it now or hereafter may own unless otherwise specified in this Document. Each Party shall be
     responsible for the maintenance, repair and condition of its respective lines and appurtenances on their
     respective side of the PCC. The TMLWP and the Interconnecting Customer shall each provide equipment
     on its respective side of the PCC that adequately protects the TMLWP’s EPS, personnel, and other persons
     from damage and injury.

     6.4 Access

     The TMLWP shall have access to the disconnect switch of the Facility at all times.

          6.4.1 TMLWP and Interconnecting Customer Representatives

          Each Party shall provide and update as necessary the telephone number that can be used at all times to
          allow either Party to report an emergency.

          6.4.2 TMLWP Right to Access TMLWP-Owned Facilities and Equipment

          If necessary for the purposes of this Interconnection Requirements and in the manner it describes, the
          Interconnecting Customer shall allow the TMLWP access to the TMLWP’s equipment and the TMLWP’s
          facilities located on the Interconnecting Customer’s or Customer’s premises. To the extent that the
          Interconnecting Customer does not own all or any part of the property on which the TMLWP is required to
          locate its equipment or facilities to serve the Interconnecting Customer under this Interconnection
          Requirements, the Interconnecting Customer shall secure and provide in favor of the TMLWP the
          necessary rights to obtain access to such equipment or facilities, including easements if the circumstances
          so require.

 6.4.3 Right to Review Information

          The TMLWP shall have the right to review and obtain copies of Interconnecting Customer’s operations
          and maintenance records, logs, or other information such as, unit availability, maintenance outages,
          circuit breaker operation requiring manual reset, relay targets and unusual events pertaining to
          Interconnecting Customer’s Facility or its interconnection with the TMLWP EPS. This information will be
          treated as customer-confidential.

7.0 Disconnection

     7.1 Temporary Disconnection

          a. Emergency Conditions. TMLWP shall have the right to immediately and temporarily disconnect the
          Facility without prior notification in cases where, in the reasonable judgment of TMLWP, continuance of
          such service to Interconnecting Customer is imminently likely to (i) endanger persons or damage property
          or (ii) cause a material adverse effect on the integrity or security of, or damage to, TMLWP EPS or to
          the electric systems of others to which the TMLWP EPS is directly connected. TMLWP shall notify
          Interconnecting Customer promptly of the emergency condition.

          Interconnecting Customer shall notify TMLWP promptly when it becomes aware of an emergency
          condition that affects the Facility that may reasonably be expected to affect the TMLWP EPS. To the
          extent information is known, the notification shall describe the emergency condition, the extent of the
          damage or deficiency, or the expected effect on the operation of both Parties’ facilities and operations,
          its anticipated duration and the necessary corrective action.

          b. Routine Maintenance, Construction and Repair. TMLWP shall have the right to disconnect the
          Facility from the TMLWP EPS when necessary for routine maintenance, construction and repairs on the
          TMLWP EPS. The TMLWP shall provide the Interconnecting Customer reasonable notice, is possible.

          Any additional notification requirements will be specified by mutual agreement in the Interconnection
          Service Agreement.

          c. Forced Outages. During any forced outage, TMLWP shall have the right to suspend interconnection
          service to effect immediate repairs on the TMLWP EPS; provided, however, TMLWP shall use reasonable
          efforts to provide the Interconnecting Customer with prior notice. Where circumstances do not permit
          such prior notice to Interconnecting Customer, TMLWP may interrupt Interconnection Service and
          disconnect the Facility from the TMLWP EPS without such notice.

          d. Non-Emergency Adverse Operating Effects. The TMLWP may disconnect the Facility if the Facility is
          having an adverse operating effect on the TMLWP EPS or other customers that is not an emergency.

          e. Modification of the Facility. TMLWP shall notify Interconnecting Customer if there is evidence of a
          material modification to the Facility and shall have the right to immediately suspend interconnection
          service in cases where such material modification has been implemented without prior written
          authorization from the TMLWP.

          f. Re-connection. Any curtailment, reduction or disconnection shall continue only for so long as reasonably
          necessary. The Interconnecting Customer and the TMLWP shall cooperate with each other to restore the
          Facility and the TMLWP EPS, respectively, to their normal operating state as soon as reasonably
          practicable following the cessation or remedy of the event that led to the temporary disconnection.

     7.2 Permanent Disconnection

     The Interconnecting Customer has the right to permanently disconnect at any time with 30 days written
     notice to the TMLWP.

     The TMLWP may permanently disconnect the Facility upon termination of the Interconnection Service
     Agreement in accordance with the terms thereof.

8.0 Metering, Monitoring, and Communication

This Section sets forth the rules, procedures and requirements for metering, monitoring and communication
between the Facility and the TMLWP EPS where the Facility exports power or is net metered or is otherwise
subject to NEPOOL requirements. Interconnecting Customer will be responsible for all reasonable and necessary
costs incurred by TMLWP for the purchase, installation, operation, maintenance, testing, repair and replacement
of metering and data acquisition equipment.

8.1 Metering, Related Equipment and Billing Options

The TMLWP shall furnish, read and maintain all revenue metering equipment. The Interconnecting Customer shall
furnish and maintain all meter mounting equipment such as or including meter sockets, test switches, conduits,
and enclosures. Except as provided below, the TMLWP shall own the meter and the Interconnecting Customer
shall pay to the TMLWP a monthly charge to cover taxes, meter maintenance, incremental reading and billing
costs, the allowable return on the invoice cost of the meter and the depreciation of the meter. The
Interconnecting  Customer shall provide suitable space within the Facility for installation of the metering, and
communication equipment at no cost to the TMLWP.

All metering equipment installed pursuant to this Interconnection Requirements and associated with the Facility
shall be routinely tested by the TMLWP at Interconnecting Customer’s expense, in accordance with applicable
TMLWP and/or ISO-NE criteria, rules and standards. If, at any time, any metering equipment is found to be
inaccurate by a margin greater than that allowed under applicable criteria, rules and standards, the TMLWP shall
cause such metering equipment to be made accurate or replaced. The cost to repair or replace the meter shall be
borne by the TMLWP, if the TMLWP owns the meter. Meter readings for the period of inaccuracy shall be adjusted
so far as the same can be reasonably ascertained.

Each Party shall comply with any reasonable request of the other concerning the sealing of meters, the presence
of a representative of the other Party when the seals are broken and the tests are made, and other matters
affecting the accuracy of the measurement of electricity delivered from the Facility. If either Party believes
that there has been a meter failure or stoppage, it shall immediately notify the other.

If the Metering Point and the Point of Receipt or Point of Delivery are not at the same location, the metering
equipment shall record delivery of electricity in a manner that accounts for losses occurring between the
Metering Point and the Point of Receipt or Point of Delivery.

The type of metering equipment to be installed at a Facility is dependent on the Category (size) of the Facility
and how and if the Facility plans to export power or net meter. For those that will export power or net meter,
the available equipment options and associated requirements are:

          • Net Metering – For net metered facilities, unless the Interconnecting Customer elects another form of
          metering, the Facilities will be equipped with net metering in which metering equivalent to or replicating
          that of a standard distribution class meter is installed and is enabled to run in a normal direction during
          periods of net consumption and to run backwards during periods of net generator output. All metering
          equipment included in this type of installation, including self-contained meters and instrument
          transformers and meters, shall meet ANSI C12.1 Metering Accuracy Standards and ANSI C57.13
          accuracy requirements for instrument transformers. TMLWP will determine whether a facility qualifies
          for net metering based on present policies.

          • Bi-directional, non-interval meter without remote access – in which a distribution class meter with
          multiple registers is installed. One set of registers will record energy flows from the TMLWP to the
          Facility during periods when the Facility is a net consumer of energy (the other register will record no flow
          during these periods) and a second set of registers will record energy flows from the Facility to the
          TMLWP during periods when the Facility is a net producer of energy (the other register will record no flow
          during these periods). Each set of registers will record total flows in accordance with the Customer’s
          specific rate classification. All metering equipment included in this type of installation, including self
          contained meters and instrument transformers and meters, shall meet ANSI C12.1 Metering Accuracy
          Standards and ANSI C57.13 accuracy requirements for instrument transformers.

Units over 60 kW: Will be equipped with a bi-directional meter. Such meter may have remote access capability
and may be an interval meter based on Customer rate class.

Units over 1 MW: Shall be equipped with bi-directional, interval meters with remote access (if necessary). In
addition, Facilities which are 5 MW or greater are required by NEPOOL Operating Procedure No. 18 to provide
communication equipment and to supply accurate and reliable information to system operators regarding metered
values for MW, MVAR, volt, amp, frequency, breaker status and all other information deemed necessary by ISONE
and the NEPOOL Satellite (REMVEC).

8.2 Additional Monitoring and Communication Requirements

As the amount of distributed generation on the TMLWP EPS grows significantly, additional monitoring and
communication may be required by the Massachusetts DPU and need to be installed at the Customer’s expense.

9.0 Insurance Requirements

Insurance requirements will be set forth by the TMLWP for the Interconnecting Customer to maintain, on an
individual project basis, given the size, cost and complexity of the Distributed Generation project. No insurance
is required for Facilities less than or equal to ten (10) kW. However, the TMLWP recommends that the
Interconnecting Customer obtain adequate insurance to cover potential liabilities.

9.1 Insurer Requirements and Endorsements

All required insurance shall be carried by reputable insurers qualified to underwrite insurance in MA having a Best
Rating of “A-”. In addition, all insurance shall,

          (a) include TMWLP as an additional insured;

          (b) contain a severability of interest clause or cross-liability clause;

          (c) provide that TMWLP shall not incur liability to the insurance carrier for payment of premium for such
          insurance; and

          (d) provide for thirty (30) calendar days’ written notice to TMWLP prior to cancellation, termination,
          or material change of such insurance;

9.2 Evidence of Insurance

Evidence of the insurance required shall state that coverage provided is primary and is not in excess to or
contributing with any insurance or self-insurance maintained by Interconnecting Customer. The Interconnecting
Customer is responsible for providing the TMLWP with evidence of insurance in compliance with this
Interconnection Requirements on an annual basis. Prior to the TMLWP commencing work on System Modifications,
the Interconnecting Customer shall have its insurer furnish to the TMLWP certificates of insurance evidencing
the insurance coverage required.

               Summary of TMLWP “Requirements for Interconnection of Non-Utility Generators”

The following is a listing of the major steps required for Customers to interconnection non-utility generators
(NUG) and distributed generation (DG) to the TMLWP distribution system. Please refer to the complete
interconnection requirements document for additional information.

     1. Interconnecting Customer should complete and submit the Application Form to the TMLWP based on the
     proposed size of the distributed generation (either <10kW or >10kW).

     2. Interconnecting Customer should submit to TMLWP copies of drawings, specifications, plans, etc.
     for proposed installation. TMLWP will review the proposed installation to determine potential impact to
     TMLWP distribution system and any required system construction necessary to support DG. See Section
     3.0 of the TMLWP Interconnection Requirements document.

     3. Interconnecting Customer should design DG facility to meet the intent of Section 4.0 of the TMLWP
     Interconnection Requirements document, along with appropriate industry standards, including the National
     Electric Code and IEEE Std 1547 “Standard for Interconnecting Distributed Resources with Electric Power
Systems”.

     4. TMLWP will provide cost estimates for any engineering design, review and construction costs associated
     with interconnecting the Customer’s DG to the TMLWP Electric Power System (EPS). TMLWP will also
     provide an Interconnection Services Agreement for customer signature, prior to the start of any construction
     on the TMLWP EPS. Interconnecting Customer is responsible for the payment of all fees, studies, design and
     construction costs to interconnect their DG, including costs incurred by TMLWP for studies and system    
     modifications.

     5. The Interconnecting Customer should consult the TMLWP before designing, purchasing and installing any
     generation equipment, in order to verify the nominal utilization voltages, frequency, and phase
     characteristics of the service to be supplied, the capacity available, and the suitability of the proposed
     equipment for operation at the intended location. The following should also be noted:

          a. Voltage, Frequency, Harmonic and Noise thresholds and limits must be maintained by the DG at
          all times. See Section 4.0 of the TMLWP Interconnection Requirements document and the latest edition
          of IEEE Std 1547.

          b. TMLWP will determine protection requirement for each DG project individually. Interconnecting
          Customer will install protective relaying to control either generator circuit breaker, or utility intertie
          circuit breaker, in order to trip the generator offline for abnormal conditions, or to prevent reverse
          power flow into the TMLWP EPS (if agreed upon). All relaying shall be designed and set by the
          Interconnecting Customer and approved by TMLWP.

          c. An external disconnect switch (or compatible device) shall be installed and be accessible to and
          lockable by TMLWP. TMLWP shall have the right to open the disconnect switch in accordance with the
          Interconnection Requirements, or in times of emergency.

     6. Metering of the DG facility will be via net-metering or bi-directional metering, as by TMLWP tariffs,
     rates, policies in place at the time of the application. Interconnecting Customer is responsible for
     installation of metering equipment (sockets, CT’s etc.). TMLWP to provide meter.

     7. Once the DG facility is constructed and all modifications to the TMLWP EPS have been made, the
     Interconnecting Customer should notify TMLWP of their intent to commission the DG. Commissioning of
     DG equipment shall be in accordance with the latest edition of IEEE Std 1547 and the latest edition of the
     InterNational Electric Testing Association (NETA) Acceptance Testing Specifications (ATS) documents.
     TMLWP to inspect completed installation and witness commissioning.

     8. Authorization to interconnect will be provided once the Interconnecting Customer has met all terms
     of the interconnection process as outlined in the TMLWP Interconnection Requirements document.
     Interconnecting Customer shall send written notification of completion of installation to TMLWP and
     intent to generate electricity.

     9. The Interconnecting Customer shall operate the DG facility in a safe manner with no adverse effects
     to the TMLWP EPS or other Customers. The TMLWP will operate the EPS in such a manner so as to not
     unreasonably interfere with the operation of the Facility. The Interconnecting Customer shall maintain
     their facility and equipment in accordance with current industry recommendations. TMLWP shall have the
     right to witness or review maintenance tests.

       

        

       
        

      

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Templeton Light & Water PLANT on-Utility Generation Interconnection Application for Facilities with
Inverter Capacity of 10 kW or Less click to download

TEMPLETON MUNICIPAL LIGHT & WATER PLANT Non-Utility Generation Interconnection Application for Facilities with Capacity of More Than 10 kW click to download