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NHEC - New Hampshire Electric Co-op

New Hampshire Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeAnnual
Line Taps Allowed1
Load Taps Allowed1
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
1
NEM Type
Annual
TOU Utility
1
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
1
Deregulated
1
Allows Standby
1

Interconnection & taps

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

Relay 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
0
ESID Num Req SLD 3LD
0
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

Restrict Inspection
0
Revision Required
1
Mod Swap Requires Planset
1
Address ID
135812
Express Planset Eligible
No
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.