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Groton Utilities (CT)

Connecticut Utility Interconnection & net metering rules
Net Metering Allowed1
Line Taps Allowed1
Load Taps Allowed0
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
1
Post Solar Billing Method
Net Metering
Net Excess Generation Notes

“The APS [Alternative Power Source] customer shall be billed the monthly service charge, energy charge for delivered kWh, purchased power adjustment for delivered kWh, transmission cost adjustment for delivered kWh, demand charge (if applicable), T&D charge for the customer’s complete facility electric requirements kWh, and any other charges as mandated by Federal, State and/or Local regulators. The customer shall be credited the energy charge, purchased power adjustment and transmission adjustment for all kWh received from the customer. The customer credits will cease in the event that the customer is a net generator within any 12 month period.”

Rebates Offered
0
Allows Standby
0

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
1
Load Taps Allowed
0
Tap Criteria

Line side of main breaker must immediately be protected by new overcurrent device

Automatic Transformer Upgrade Size
0

System size & offset

System Size Restrictions
0
System Size Restriction Type
No Restrictions
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Type
No Restrictions
Offset Value
0
Offset Calculation Period
0
Industry Standard Watts Sqft
2
Offset Calc Tool
N/A

Metering & disconnect

Production Meter Required
Yes
Production Meter Position
Inv-Disco-PM-POI
AC Disconnect Required
Yes
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs

General site plan of the proposed installation

SLD Reqs

Relay Meter Orientation = Over/Under

Solar wired to top of PV meter, bottom toward POI.

Line diagram must show that both Utility meter and Solar meter are lever bypass

Install Reqs

Category 1 and 2 Installations: The electric service shall bemetered for revenue purposes primarily using two watt-hourmeters with detents or, if feasible, one two-channel, electronic,solid state meter that is capable of measuring bi-directional powerflow.

Meter Num Req SLD 3LD
0
ESID Num Req SLD 3LD
0
Website
link
Phone
(860) 446-4092

Other details

Restrict Inspection
1
Address ID
135772
Express Planset Eligible
No
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Groton Utilities (CT) 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.