Balcony Solar in Massachusetts

Balcony solar bill pending Verified as of September 25, 2026

Everything you need to know about plug-in balcony solar in Massachusetts: legal status, tracked bills, statutory wattage limits, utility interconnection rules, and expected monthly solar production.

Legislation Summary

Status
Balcony solar bill pending
Wattage allowed
Not yet verified
Wattage tiers
Not yet verified
HOA / Condo Protections
Not yet verified
Plug-in Battery Storage
Not yet verified
Renters & Tenant Rights
Not yet verified
Permit & Electrician DIY Status
Not yet verified
Utility Interconnection
Not yet verified
Bill
H.5175 - An Act relative to energy affordability, clean power and economic competitiveness
Date passed
Not yet verified
Date effective
Not yet verified

Legal Status: Can You Plug In Solar in Massachusetts?

Current Disposition: Balcony solar bill pending

Massachusetts House Bill H.5175, an energy affordability and clean power omnibus bill, includes a proposed portable solar generation device exemption from interconnection and net-metering requirements. The House engrossed the bill on February 26, 2026, with a 1,200-watt device limit. The Senate passed its own amendment (S.3166) on July 1, 2026; its text sets no watt limit for eligible systems. The House did not concur on July 16, 2026, and a conference committee was appointed. The portable-solar provisions are not law.

Tracked Legislation in Massachusetts

H.5175 house Tracked

An Act relative to energy affordability, clean power and economic competitiveness

Latest Action: July 1, 2026

Primary Source | Wayback Archive

Estimated Solar Energy Production in Massachusetts

How much electricity will a standard plug-in solar kit produce on a balcony or patio in Massachusetts? Below are monthly estimates based on local insolation levels:

Standard 400W Kit ~569 kWh Estimated annual electricity production
Dual-Panel 800W Kit ~1134 kWh Estimated annual electricity production
Month Daily Peak Sun Hours 400W Kit (1 Panel) 800W Kit (2 Panels)
Jan 3.4 hrs 36 kWh 73 kWh
Feb 4.2 hrs 40 kWh 81 kWh
Mar 4.8 hrs 51 kWh 102 kWh
Apr 5.0 hrs 52 kWh 103 kWh
May 5.3 hrs 57 kWh 113 kWh
Jun 5.4 hrs 56 kWh 111 kWh
Jul 5.5 hrs 59 kWh 117 kWh
Aug 5.4 hrs 58 kWh 115 kWh
Sep 5.0 hrs 52 kWh 103 kWh
Oct 4.3 hrs 46 kWh 92 kWh
Nov 3.1 hrs 32 kWh 64 kWh
Dec 2.8 hrs 30 kWh 60 kWh
Annual Total -- ~569 kWh ~1134 kWh

Estimates derived from historical National Renewable Energy Laboratory (NREL NSRDB) solar radiation averages across weather stations in Massachusetts, modeling an 86% system performance ratio.

Calculate Your Exact Bill Savings

Customize system orientation, local utility electric rates, and shade factors with our interactive simulator.

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Local Solar Permitting Streamlining in Massachusetts

While balcony solar kits are designed for plug-in operation, municipal permitting processes indicate solar-friendly administrative environments:

0 SolarAPP+ Jurisdictions Municipalities with automated, instant online rooftop & storage permits.
22 SolSmart Communities Cities and counties recognized for removing red tape and barriers to solar growth.

Incentives, Solar Rights & Grid Barriers

State Incentives & Solar Rights

  • H.5175 would exempt qualifying portable solar generation devices from interconnection and net-metering requirements
  • The proposal would bar distribution companies from requiring prior approval, device-related fees, or extra controls beyond integrated equipment

Utility Barriers & Interconnection Rules

  • H.5175 has not been enacted and does not currently change Massachusetts law
  • Qualifying devices would still need to meet the bill's portable-device definition and applicable electrical safety standards if enacted

Official Massachusetts Energy Resources

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