Codes of Record

Massachusetts

220 CMR 18.00

PartialRead in the state’s own source. It stays partial until the passage is on file word for word.

What does Massachusetts 220 CMR 18.00 do? Requires utilities to credit net metering facilities; Class I runs to 60 kW, and Class I systems of 25 kW or less are cap exempt. Requires that energy storage systems not count as on-site load when qualifying for cap exemptions.

Facts

Kind
Rule
Status
In force
Stage
In force
Signed or decided
December 20, 2024
Effective
December 20, 2024
Topics
Tariffs and bill credits
Products
Residential energy storage systems
Source
Massachusetts Department of Public Utilities (opens in a new tab)
Citation
220 CMR 18.00 net metering regulation

The state’s codes

The codes that reach each product this law names, with the edition Massachusetts is on. Each links to the record.

For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use