SHELD - South Hadley Electric Light

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 If something here is out of date or missing, tell us and we'll fix it.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

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
Meter Aggregation Allowed
No

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-Disco-PM-POI
Allowed Meter Adapter
None

Plans & docs

Site Plan Reqs

The site plan should show the proposed physical location of all system components, as well as the PV panel azimuth and tilt angles

SLD Reqs

Meter Orientation = Over/Under

  • PV meter wired top toward inverter, bottom toward POI
  • AC disconnect switch must be installed in a readily accessible location normally within 10 feet of the utility meter, where SHELD personnel can operate the switch at any time.
Electric Service Reqs

The proposed inverter settings should include; how the inverter reacts to high/low voltage conditions; voltage and frequency ride-thru settings; volt-var or volt-watt settings.


For Equipment and System Design: Please refer to pg. 1-2 in PV Interconnection Requirements

Install Reqs

Residential Class Customer PV Installations: Residential rate customers (e.g. R1 and RH) with PV installed systems shall not exceed 10 kW DC

Website
link
Phone
(413) 536-1050
Compiled from public records, 2026. Tariffs and interconnection rules change; verify with SHELD - South Hadley Electric 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.