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Littleton Electric Light & Water Department

Massachusetts Utility Interconnection & net metering rules
Net Metering Allowed1
NEM TypeMonthly
Line Taps Allowed0
Load Taps Allowed0

Net metering & export

Net Metering Allowed
1
NEM Type
Monthly
TOU Utility
0
Post Solar Billing Method
Net Metering
Rebates Offered
0
Deregulated
1

Interconnection & taps

Approval Req To Install
Yes
Interconnection Level
3
Line Taps Allowed
0
Load Taps Allowed
0
Automatic Transformer Upgrade Size
0

System size & offset

System Size Restrictions
8
System Size Restriction Type
AC kW
System Size Battery Included
0
System Size Includes Existing Systems
0
Offset Type
Combination
Offset Value
100
Offset Calculation Basis
Historical
Offset Calculation Period
12
Industry Standard Watts Sqft
2
System Offset Notes
To be eligible for LELD’s net metering program, (LELD rate 70) the maximum allowableresidential interconnection is the lesser of 8 kW (AC Rating) or a system sized estimated notto produce more annual energy than the previous 12 months of the customer’s bills
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

Electric Service Reqs
For all inverters, LELD requires an external disconnect switch (orcomparable device by mutual agreement) at the point of interconnection with LELD or at another mutually agreeable point that is accessible to LELD personnel at all times and that can be opened for isolation if required. The switch shall be gang operated, have a visible break when open, be rated tointerrupt the maximum inverter output and be capable of being locked open,tagged and grounded on the LELD side by LELD personnel. LELD shall havethe right to open this disconnect switch in accordance with this Interconnection Standard. This disconnect must be within plain sight of theLELD revenue meter or service entrance point, and must be prominentlylabelled
Website
link
Phone
(978) 540-2222

Other details

Restrict Inspection
0
Address ID
133199
Express Planset Eligible
Yes
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with Littleton Electric Light & Water Department 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.