Mission & History | Belmont Light

Belmont Light Interconnection Form

Used to apply for a solar, battery, wind turbine, etc. authorization.

(BETA VERSION) BELMONT LIGHT – Interconnection and Service Agreement Application for Behind-the-Meter Installations

Instructions: Please fill out this application completely. The system should be designed for a power factor of 1. See Terms and Conditions for Interconnections for more information on the application process.

Please read Terms and Conditions and Customer Application Checklist (links below) before proceeding.

https://www.belmontlight.com/wp-content/uploads/2024/02/Interconnection-Agreement-Terms-and-Conditions.pdf

https://www.belmontlight.com/wp-content/uploads/2021/02/2021-Belmont-Light-Interconnection-Checklist.pdf

After installation, please download and fill out the Certificate of Completion (link below) and present it to the electrical inspector for signature during inspection.

https://www.belmontlight.com/wp-content/uploads/2021/02/2021-Belmont-Light-Certificate-of-Completion.pdf

Belmont Light Customer Information

Customer Name(Required)

First Last

Business Name (if applicable)

Electric ACCOUNT Number (on bill)(Required)

Please enter a number from 00001 to 999999.

Electric METER Number (on bill – begins with "RX", "RU", or "A".)(Required)

Service Address of Interconnection Facility (e.g. "21 Main St, Unit 2")(Required)

Customer Phone Number (e.g. "(555)444-3333")(Required)

Customer Email Address(Required)

Installing Contractor/Coordinating Company Information

Company Name(Required)

Company Contact Person

First Last

Company Mailing Address (eg. "123 Main Street, Boston, MA 02215")(Required)

Company Contact Phone Number (e.g. "(555)444-3333")(Required)

Company Contact Email Address(Required)

Company License Number(Required)

Estimated Construction Start Date(Required)

Estimated Completion Date(Required)

Interconnection Facility Information (Solar, Battery, Wind, Hydro, Other)

Add a “System” for each Solar, Battery, Wind, Hydro, or other system proposed to be installed and/or currently installed at the facility. Start with a new proposed system for “System 1” and include existing systems later in the application.

System #1

Status of System #1(Required)

Type of System #1(Required)

Other system type(Required)

Production Meter Make/Model (enter "n/a" if no production meter installed)(Required)

Inverter/Battery Manufacturer(Required)

Model Name and Number(Required)

Quantity Used (number)(Required)

Please enter a number greater than or equal to 1.

AC Nameplate kVA rating (per unit) (For example, enter ".290" for a 290W microinverter; enter "10" for a SolarEdge SE10000H)(Required)

DC-STC Rating in kVA (solar only – enter "0" [zero] if system #1 is not solar)(Required)

Please enter a number from 0 to 1001.

Total System #1 AC Design Capacity (in kVA)(Required)

Total Continuous System #1 AC kVA Output Available to Backfeed onto Electric Utility System (in kVA) – (Note: enter 0 if for emergency off-grid backup purposes only = no backfeed to the grid)(Required)

UL Listed? (see Belmont Light Terms and Conditions for Residential & Commercial Interconnections)(Required)

Phase(Required)

Continue to System #2?

Do you have a second existing or proposed system to submit?(Required)

Yes

System #2

Status of System #2(Required)

Type of System #2(Required)

Other system type(Required)

Production Meter Make/Model (enter "n/a" if no production meter installed)(Required)

Inverter/Battery Manufacturer(Required)

Model Name and Number(Required)

Quantity Used(Required)

Please enter a number greater than or equal to 1.

AC Nameplate kVA rating (per unit)(Required)

DC-STC Rating in kVA (solar only – enter "0" [zero] if system #2 is not solar)(Required)

Please enter a number from 0 to 1001.

Total System #2 AC Design Capacity (in kVA)(Required)

Total Continuous System #2 AC kVA Output Available to Backfeed onto Electric Utility System (in kVA) – (Note: enter 0 if for emergency off-grid backup purposes only = no backfeed to the grid)(Required)

UL Listed? (see Belmont Light Terms and Conditions for Residential & Commercial Interconnections)(Required)

Phase(Required)

Continue to System #3?

Do you have a third existing or proposed system to submit?(Required)

Yes

System #3

Status of System #3(Required)

Type of System #3(Required)

Other system type(Required)

Production Meter Make/Model (enter "n/a" if no production meter installed)(Required)

Inverter/Battery Manufacturer(Required)

Model Name and Number(Required)

Quantity Used(Required)

Please enter a number greater than or equal to 1.

AC Nameplate kVA rating (per unit)(Required)

DC-STC Rating in kVA (solar only -enter "0" [zero] if system #3 is not solar)(Required)

Please enter a number from 0 to 1001.

Total System #3 AC Design Capacity (in kVA)(Required)

Total Continuous System #3 AC kVA Output Available to Backfeed onto Electric Utility System (in kVA) – (Note: enter 0 if for emergency off-grid backup purposes only = no backfeed to the grid)(Required)

UL Listed? (see Belmont Light Terms and Conditions for Residential & Commercial Interconnections)(Required)

Phase(Required)

Combined System Continuous kVA Backfeed

Please consider how you will use your new interconnection facility and/or pair with existing facilities (e.g. as a standalone power source, for time-of-use purposes, etc.)

Total Backfeed: Based on your answers above, the maximum possible continuous kVA backfeed of all systems onto the Belmont Light grid is calculated below. (in kVA). Do NOT change this default value unless you have a special reason. (email energyresources@belmontlight.com with the reason)(Required)

System's Power Factor (system must be designed for a power factor of "1")(Required)

Please enter a number from 0 to 1.

Energy (Battery) Storage – Questions required by ISO-NE

Does this application contain PROPOSED energy storage (i.e. battery)?(Required)

(If the application contains only solar and/or EXISTING energy storage, answer “No”.)

Total Capacity (kWh) of all PROPOSED energy storage(Required)

Can PROPOSED energy storage charge from the grid?(Required)

Is PROPOSED energy storage DC- or AC-coupled?(Required)

(If any PROPOSED energy storage is DC-coupled, answer DC. ISO-NE defines DC-coupled as “generation and storage share an inverter”)

What is the maximum rate (kVA) at which power can be injected to the distribution system from the PROPOSED storage equipment alone?(Required)

What the maximum rate (kVA) at which power is permitted to be withdrawn from the distribution system to charge PROPOSED onsite storage?(Required)

What is the maximum rate (kVA) at which power is permitted to be injected to the distribution system from the combination of ***?PROPOSED?***storage and onsite generation?(Required)

Documents to Upload

Upload a .pdf containing each manufacturer’s document showing UL1741 listings, including ALL PROPOSED AND EXISTING SYSTEMS.(Required)

Max. file size: 32 MB.

Upload a .pdf of an electrical schematic/one-line diagram showing facility interconnection, main utility metering, and any premises sub-metering and including ALL PROPOSED AND EXISTING SYSTEMS.(Required)

Max. file size: 32 MB.

Upload a .pdf containing manufacturer spec sheets for all major equipment in ALL PROPOSED AND EXISTING SYSTEMS.(Required)

Max. file size: 32 MB.

Upload additional document(s). (1)

Max. file size: 32 MB.

Upload additional document(s). (2)

Max. file size: 32 MB.

Signature – contractor: you are signing on behalf of the Belmont Light customer. A copy of the form will be sent to their email address.(Required)

Belmont Light – Interconnection Application

Belmont Light - Interconnection Application

Belmont Light Interconnection Form

(BETA VERSION) BELMONT LIGHT – Interconnection and Service Agreement Application for Behind-the-Meter Installations

Please read Terms and Conditions and Customer Application Checklist (links below) before proceeding.

After installation, please download and fill out the Certificate of Completion (link below) and present it to the electrical inspector for signature during inspection.

Belmont Light Customer Information

Installing Contractor/Coordinating Company Information

Interconnection Facility Information (Solar, Battery, Wind, Hydro, Other)

System #1

Continue to System #2?

System #2

Continue to System #3?

System #3

Combined System Continuous kVA Backfeed

Energy (Battery) Storage – Questions required by ISO-NE

Documents to Upload