RMLD - Reading Municipal Light Department

Massachusetts 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 If something here is out of date or missing, tell us and we'll fix it.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
NEM TypeMonthly
Line Taps AllowedNo
Load Taps AllowedNo
AC Disconnect RequiredYes

Net metering & export

Net Metering Allowed
Yes
NEM Type
Monthly
TOU Utility
No
Post Solar Billing Method
Net Metering
Rebates Offered
No
Deregulated
Yes

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 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

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
Utility AC Disconnect
Allowed Meter Adapter
None

Plans & docs

SLD Reqs

Production Meter Requirement

  1. Must use a Locus production meter.

Point of Interconnection (POI) Requirement

  1. Do not tap on the lineside of the main breaker.
  2. All POI connections must be on the loadside of the main breaker.
Electrical Stamp Required
No
Meter Num Req SLD 3LD
No
ESID Num Req SLD 3LD
No
Website
link
Phone
(781) 942-6598
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with RMLD - Reading Municipal Light 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.