
Plug-in solar in Massachusetts
The Massachusetts Senate passed its own energy bill, S.3143, 32–8 on July 1, 2026, but on July 16, 2026 the House non-concurred with the Senate's amendment to H.5175; both chambers appointed a committee of conference to reconcile the two versions, and the plug-in solar provisions remain unresolved pending that process.

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We track Massachusetts's plug-in solar bill. We'll alert you the moment it clears the legislature.
Where H.5175 / S.3143 stands right now
Introduced
Committee
Jun 25, 2026
Floor Vote
Jul 1, 2026
Signed
Takes effect
Awaiting floor vote
The House non-concurred with the Senate's amendment to H.5175 and appointed a committee of conference (Cusack-Michlewitz-Jones); the Senate insisted on its amendment and appointed its own conference committee (Barrett-Creem-Tarr) the same day.
Recent updates
Jul
16
2026
The House non-concurred with the Senate's amendment to H.5175 and appointed a committee of conference (Cusack-Michlewitz-Jones); the Senate insisted on its amendment and appointed its own conference committee (Barrett-Creem-Tarr) the same day.
Jul
1
2026
The full Senate passed S.3143, a substitute redraft of H.5175, by a vote of 32–8 after adopting amendments by Senators Creem and Brady and rejecting most other proposed amendments.
Jun
25
2026
The Senate Committee on Ways and Means reported H.5175 favorably with an amendment substituting new draft S.3143, which retains the plug-in solar provisions, and placed it on the Senate's Orders of the Day for July 1, 2026.
Jun
23
2026
The Massachusetts Senate adopted an order on the subject matter of H.5175, consolidating it with ten related Senate energy bills ahead of committee action.
Mar
2
2026
The Massachusetts Senate received H.5175 and referred it to the Senate Committee on Ways and Means, where it remained pending as of June 2026.
Feb
26
2026
The Massachusetts House passed H.5151 — which included portable-solar exemptions from interconnection and net metering requirements — by a vote of 128–27, publishing the bill as H.5175.
Feb
25
2026
The House Committee on Ways and Means reported H.4744 favorably with an amendment substituting the new draft H.5151, which carried forward the portable-solar provisions.
Nov
13
2025
H.4744, which included portable-solar language exempting plug-in solar devices from interconnection requirements and net metering, was reported favorably by the Joint Committee on Telecommunications, Utilities and Energy and referred to House Ways and Means.
What you could save once plug-in solar is legal in Massachusetts
Estimate assumes current electricity rates once legislation passes.
Monthly savings
$24
Annual savings
$286
Payback period
~4 yrs
Based on 29.14¢/kWh avg rate · 800W system · 4.1 peak sun hours/day
Products to Consider in Massachusetts
Since plug-in solar isn't yet regulated in Massachusetts, portable power stations are often the practical starting point. These systems do not connect to your home's wall outlets — instead, you plug your devices directly into the power station.
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