LWL - Littleton Water & Light

New Hampshire Utility Interconnection & net metering rules

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Tariffs and interconnection rules move often. If something here is out of date or missing, tell us and we'll fix it.

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Net Metering AllowedYes
Line Taps AllowedNo
Load Taps AllowedNo

Net metering & export

Net Metering Allowed
Yes
Post Solar Billing Method
Net Metering
Rebates Offered
No

Interconnection & taps

Approval Req To Install
Yes
Line Taps Allowed
No
Load Taps Allowed
No
Automatic Transformer Upgrade Size
0

System size & offset

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

Metering & disconnect

Production Meter Required
No
Production Meter Position
N/A
Production Meter Labeling
N/A
Allowed Meter Adapter
None

Plans & docs

SLD Reqs
all net energy metering systems shall install theirequipment in accordance with the LWL “Typical Hookup Diagram for Interconnection of ALL Renewable Energy Systems” (Appendix II)
Install Reqs
Disconnect Switch: The customer generator must install and maintaina manual disconnect switch that will disconnect the connected load andisolate the net metering facility from the LWL distribution system. Thedisconnect switch shall be a lockable, load-break switch that plainly has avisual indicator that shows whether the switch is in the “open” or “closed”position. The disconnect switch must be readily accessible to LWL at all times.
Website
link
Phone
(603) 444-2915
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with LWL - Littleton Water & Light 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.