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Groton Electric Light Department

Massachusetts Utility Interconnection & net metering rules
Net Metering Allowed0
NEM TypeMonthly
Supply Side Taps Allowed0
Line Taps Allowed0
Load Taps Allowed0

Net metering & export

Net Metering Allowed
0
NEM Type
Monthly
TOU Utility
1
Post Solar Billing Method
Export Rate
Net Excess Generation Notes

GELD offers two-way net metering - we charge retail price for power used and we will pay the average monthly “on peak” wholesale price (LMP-Locational Marginal Price) on generation for any excess electricity produced. The current wholesale on-peak price has been typically between 2.0 and 5.0 cents per kilowatt hour. However, this price may vary in either direction.

Rebates Offered
0
Deregulated
0
Allows Standby
1

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Supply Side Taps Allowed
0
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
0
Automatic Transformer Upgrade Size Type
kW AC

System size & offset

System Size Restrictions
10
System Size Restriction Type
AC kW
System Size Battery Included
0
System Size Includes Existing Systems
1
Offset Type
No Restrictions
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
Utility Specific Adjustments

Infrastructure fee on systems over 10kW It’s $4.25 per kW (AC) per month

Inverter Oversize Restrictions
0
System Offset Notes

Additional fees of $4.25 per kW per month if the system is over 10kW

Offset Calc Tool
PV Watts

Metering & disconnect

Allowed Meter Adapter
None

Plans & docs

SLD Reqs

GELD requires the manual disconnect to be located in the immediate vicinity of the solar meter.


Production Meter Required

Equipment Approvals
California Energy Commission
Rate Schedule Link
link
Website
link
Phone
(978) 448-1150

Other details

Restrict Inspection
0
Address ID
126086
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Groton Electric Light Department before you rely on this. The useful move: if an installer says you need a main panel upgrade, ask how these tap and interconnection policies were considered first.