Belmont Municipal Light Department

Massachusetts Utility Interconnection & net metering rules

Spot something wrong?

Tariffs and interconnection rules move often. If something here is out of date or missing, tell us and we'll fix it.

Report a correction

Net Metering AllowedNo

NEM TypeN/A

Line Taps AllowedNo

Load Taps AllowedNo

AC Disconnect RequiredNo

Net metering & export

Net Metering Allowed: No

NEM Type: N/A

TOU Utility: No

Post Solar Billing Method: Export Rate

Solar Export Type: Fixed kWh

Solar Export Rate: 0.13

Solar Export Value Notes: Rate changes as needed, current rate can be found in their website

Net Excess Generation Notes: Belmont Light will purchase all Excess Energy metered by Belmont Light at a fixed rate - current rate can be found on their website.

Rebates Offered: No

Deregulated: Yes

Allows Standby: No

Interconnection & taps

Approval Req To Install: Yes

Line Taps Allowed: No

Load Taps Allowed: No

Automatic Transformer Upgrade Size: 0

System size & offset

System Size Restrictions: 20

System Size Restriction Type: AC kW

System Size Battery Included: No

System Size Includes Existing Systems: No

Offset Type: No Restrictions

Offset Value: 0

Offset Calculation Period: 0

Industry Standard Watts Sqft: 2

Metering & disconnect

Production Meter Required: No

Production Meter Position: N/A

Production Meter Labeling: N/A

AC Disconnect Required: No

AC Disconnect Labeling: Visible Lockable Labeled Disconnect

Allowed Meter Adapter: None

Plans & docs

SLD Reqs: One-line diagram showing facility interconnection, main utility metering and any premises sub-metering. One‐line diagram and data sheets indicating IEEE 1547 /UL1741 listing. Documentation for inverters, panels, batteries, or other applicable equipment must be submitted

Electric Service Reqs: Belmont Light’s distribution circuits generally operate with automatic re‐closers, which activate following a trip without regard to whether the Facility is keeping the circuit energized. The Interconnecting Customer is responsible for protecting their equipment from being re‐connected out of synch with Belmont Light's system. For Facilities that utilize photovoltaic (PV) technology: It is required that the system be installed in compliance with IEEE Standard 929‐ 2000, “IEEE Recommended Practice for Utility Interface of (PV) Systems” or the applicable updated standard. The inverter shall meet the Underwriters Laboratories Inc. Standard UL 1741, “Static Inverters and Charge Controllers for Use in PV Power Systems” or the applicable updated standard.

Equipment Approvals: California Energy Commission

Meter Num Req SLD 3LD: Yes

ESID Num Req SLD 3LD: No

Website: link

Phone: (617) 993-2800

Other details

Revision Required: Yes

Mod Swap Requires Planset: Yes