NPU - Norwich Public Utilities

Connecticut 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 If something here is out of date or missing, tell us and we'll fix it.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 AllowedYes
Load Taps AllowedYes
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
No
NEM Type
N/A
TOU Utility
No
Post Solar Billing Method
Export Rate
Solar Export Type
Avoided Cost
Solar Export Rate Approx
0.03
Net Excess Generation Notes

NPU does not offer net metering and any credit from NPU will be at a lower rate than what is delivered from NPU. Excess generation will be reimbursed on a monthly basis (via bill credits) based on the CT ISO avoided costs, adjusted for system loss.

Rebates Offered
No
Deregulated
No
Allows Standby
No

Interconnection & taps

Approval Req To Install
Yes
Line Taps Allowed
Yes
Load Taps Allowed
Yes
Tap Criteria


Automatic Transformer Upgrade Size
0

System size & offset

System Size Restriction Type
No Restrictions
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
Yes
Production Meter Position
Inv-PM-Disco-POI
Production Meter Labeling
Production Meter
AC Disconnect Required
Yes
AC Disconnect Labeling
Visible Lockable Labeled Disconnect
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs
  • Utility meter, production meter, and AC disconnect must be located outside.
  • Include spec sheets for panel, inverter, battery (if applicable), and production meter in planset
SLD Reqs

Meter Orientation = Over/Under

  • Production meter should be wired with the top toward the inverter
  • Please
Install Reqs
  • All solar installations require a witness test. There is no cost, and the scheduling is based on the availability of those involved (customer, solar contractor, our engineer and field service tech, building department). The appointment is scheduled for 1.5 hours.
Electrical Stamp Required
No
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Website
link
Phone
(860) 887-2555

Other details

Revision Required
No
Mod Swap Requires Planset
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with NPU - Norwich Public Utilities 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.