Balcony Solar in Washington

No balcony solar law Verified as of September 25, 2026

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

Legislation Summary

Status
No balcony solar law
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
HB 2296 - Relating to expanding the use of distributed energy resources; and adding a new section to chapter 80.28 RCW
Date passed
March 23, 2026
Date effective
June 11, 2026

Legal Status: Can You Plug In Solar in Washington?

Current Disposition: No balcony solar law

Washington HB 2296 passed as Chapter 136 of the 2026 Laws (signed March 23, 2026, effective June 11, 2026), but its balcony-solar provisions did not survive: the House substitute bill had already dropped the 'Addressing Balcony Solar' part, and the enacted chapter, captioned 'Utility investments in energy conservation and efficiency -- rental housing', has no solar, photovoltaic, balcony, or wattage content. A companion bill (SB 6050) carried the identical balcony-solar text but was not enacted. Plug-in balcony solar therefore remains unauthorized-by-specific-statute in Washington; the framework would need to pass in a future bill.

Tracked Legislation in Washington

HB 2296 house Enacted

Relating to expanding the use of distributed energy resources; and adding a new section to chapter 80.28 RCW

Latest Action: March 23, 2026

Primary Source | Status Source | Wayback Archive

Estimated Solar Energy Production in Washington

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

Standard 400W Kit ~504 kWh Estimated annual electricity production
Dual-Panel 800W Kit ~1006 kWh Estimated annual electricity production
Month Daily Peak Sun Hours 400W Kit (1 Panel) 800W Kit (2 Panels)
Jan 1.9 hrs 20 kWh 41 kWh
Feb 2.8 hrs 27 kWh 54 kWh
Mar 3.9 hrs 42 kWh 83 kWh
Apr 4.7 hrs 49 kWh 97 kWh
May 5.2 hrs 55 kWh 111 kWh
Jun 5.4 hrs 56 kWh 111 kWh
Jul 5.8 hrs 62 kWh 124 kWh
Aug 5.7 hrs 61 kWh 122 kWh
Sep 5.1 hrs 53 kWh 105 kWh
Oct 3.7 hrs 39 kWh 79 kWh
Nov 2.1 hrs 22 kWh 43 kWh
Dec 1.7 hrs 18 kWh 36 kWh
Annual Total -- ~504 kWh ~1006 kWh

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

Calculate Your Exact Bill Savings

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Local Solar Permitting Streamlining in Washington

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

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

Incentives, Solar Rights & Grid Barriers

State Incentives & Solar Rights

  • No enacted plug-in/balcony solar framework as of 2026-08-22 -- HB 2296's balcony-solar part was stripped before final passage
  • Existing sales tax exemption for qualifying solar equipment remains available

Utility Barriers & Interconnection Rules

  • Standard interconnection and electrical-code requirements apply; no statutory portable-device exemption exists
  • Watch status: new legislation required; SB 6050 (companion carrying the same text) was not enacted

Official Washington Energy Resources

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