NHEC - New Hampshire Electric Co-op

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 If something here is out of date or missing, tell us and we'll fix it.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

Net metering & export

Net Metering Allowed
Yes
NEM Type
Annual
TOU Utility
Yes
Post Solar Billing Method
Net Metering
Solar Export Type
Other
Net Excess Generation Notes

a. Applicability

1. The member-generator will be the customer of record and shall be billed for Delivered Energy services under our Schedule of Rates applicable to the member-generator’s service classification (see Terms & Conditions Section J: Classification of Service.)

2. A member-generator shall be credited for Exported Energy services under the Schedule of Rates applicable to the member-generator’s service classification. A member-generator who has chosen a competitive energy supplier will not be credited the Co-op Power portion of the Exported Energy rate.

b. Annual Review

1.Following the March billing cycle each year we shall conduct a review of member-generators that have been credited, over the preceding twelve (12) months, for more Exported Energy than Delivered Energy.

i. If a dollar credit balance remains from your Exported Energy, you will receive a written notice indicating that you can continue to carry and accumulate the dollar credit balance unless you elect to receive a payment by check for the adjusted dollar credit balance on the electric account as of the end of the March billing cycle.

Rebates Offered
Yes
Deregulated
Yes
Allows Standby
Yes

Interconnection & taps

Approval Req To Install
Yes
Line Taps Allowed
Yes
Load Taps Allowed
Yes
Automatic Transformer Upgrade Size
0

System size & offset

System Size Restrictions
0
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
System Offset Notes

A member-generator may not exceed a total generating capacity of up to and including one megawatt that is located behind a retail meter on your premises, is interconnected and operates in parallel with our distribution system and is used to offset your electricity requirements.  

Offset Calc Tool
N/A

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

SLD Reqs

Meter Orientation = Over/Under

  • Include supplemental notes identifying the production meter socket & utility accessible disconnect as “accessible and exterior located”.
  • Include supplemental notes identifying production meter wiring terminations as “line to solar - load to utility”.
  • If POI is a tap, the UM is exterior and the MSP is interior, two AC Discos are required: A Knife Blade AC Disco exterior and next to the UM and a Fused AC Disco interior next to the MSP
  • Utility accessible disconnects are required for all PV interconnections
  • Utility accessible disconnects shall be combined with the production meter equipment or be installed directly adjacent to or within reach of the production meter equipment
  • Must show all components of the PV & battery system exactly as it will be wired by the electrician

Production Meter Requirements

  • Installed at the approved height 5 - 5.5 feet to the meter center measured from grade
  • Equipment terminations are wired line (top) toward solar and load (bottom) toward utility
  • Equipment is spaced a minimum 10 feet from LP gas regulators or LP gas tanks
  • Smart production meters not used in NH.
Install Reqs

https://www.nhec.com/start-stop-or-transfer-services/electric-service-handbook/  

Placards
  • Placards are required to be formatted with a red background and white lettering
  • Net Meter label: PRIMARY NET METER - WARNING - DUAL POWER SOURCE - SECOND SOURCE FROM SOLAR PV
  • Solar Generation (REC) Meter label: SOLAR GENERATION METER
  • Examples are in the database files under Label Examples
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Electrical Diagram Notes

All Jobs [Production meter & utility accessible disconnect equipment shall be noted “exterior utility accessible” // Production meter wiring terminations shall be noted “line to solar - load to utility”]

Rate Schedule Link
link
Website
link
Phone
(800) 698-2007

Other details

Revision Required
Yes
Mod Swap Requires Planset
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with NHEC - New Hampshire Electric Co-op 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.