Washington
SB 6050 was deferred to the 2027 session; there is no state plug-in solar law yet.
- Bill
- SB 6050
- Size limit in the bill
- no law yet
Checked October 14, 2026
State law · Washington
Is plug-in solar legal in Washington?
No — Washington had no plug-in solar law in force on October 14, 2026. SB 6050 did not pass in 2026 and is expected to return in the 2027 session; the bill would set rules for small plug-in systems if enacted.
- StatusBack in 2027
- BillSB 6050
- Average rate, EIA14.40¢/kWh
- CheckedOct 14, 2026
Where the bill stands
- Bill introducedSB 6050
- Passed the legislaturecarried to 2027
- Signednot yet
- In effectnot yet
A typical year in Washington800 W kit · railing, facing south · near the state's population center
Service ZIP980xxWashington
585 kWhproduced in a typical year
$45saved per year
14.40¢/kWhAverage home rate, EIA
312 kWh used at home × 14.40¢ = $44.91; 271 kWh sent to the grid unpaid, 2 kWh lost to the inverter limit. At Washington's average rate (EIA).
Washington: Back in 2027SB 6050 was deferred to the 2027 session; there is no state plug-in solar law yet.
- Bill
- SB 6050
- Proposed
- —
Production by month, kWh
- Used at home
- Sent to the grid
Residential average, January to July 2026 (EIA Electric Power Monthly).
Open the calculatorWhere sources differ
StatusSecondary source (Bright Saver) states the bill was deferred to 2027; the official legislature page shows the bill in the Senate Rules "X" file (Feb 26) and lists current status as SRules X.
Statuslegislature page reading suggests "bill-active"; the Bright Saver tracker category is "carryover-2027" — the tracker category is used
What the law says
SB 6050 was introduced in the 2026 session but did not pass; the legislature’s last recorded action is “Senate Rules X file” on Feb 26, 2026. Bright Saver reports the bill was deferred to 2027; the official legislature page lists the Feb 26 SRules X action.
Bright Saver summarizes the proposal as aiming to define a new class of small systems, exempt them from standard utility interconnection approvals, and require product safety certification. The bill text and any final limits would appear in the legislature record if SB 6050 is reintroduced.
Options without a law
You can use equipment that does not connect to the grid. A portable power station charged by panels needs no utility interconnection; manufacturers list models from 192Wh to 4,000Wh and AC outputs from 220W to 4,000W.
For context, the calculator gives typical-year outputs for an 800 W kit: vertically mounted it produces 585 kWh a year (312 kWh used at home, 271 kWh exported) and saves $45 a year at 14.4 cents per kWh ($449 over 10 years, exports paid 0). Tilted at 30° it produces 857 kWh and saves $57. See the calculator for other locations and the kits list for compatible hardware.
- Portable station examples (manufacturer specs): TRAIL 200 — 192Wh, 220W; TRAIL 300 — 288Wh, 300W; DELTA 3 Classic/Plus — 1,024Wh, 1,800W; DELTA 3 Max Plus — 2,048Wh, 3,000W; DELTA Pro 3 — 4,000Wh, 4,000W.
- Home rooftop systems still follow normal permitting and utility interconnection.
Questions
Is SB 6050 dead?
No. SB 6050 did not pass in 2026; the legislature’s last action is “Senate Rules X file” on Feb 26, 2026, and Bright Saver reports the bill was deferred to 2027 for reconsideration.
How much would an 800 W plug-in kit produce in Washington?
The calculator gives 585 kWh a year for an 800 W kit mounted vertically (312 kWh used at home, 271 kWh exported) and 857 kWh a year if tilted at 30°. At 14.4 cents per kWh the calculator shows about $45 saved a year for the vertical mount and $57 for the 30° tilt.
Can I avoid utility interconnection by using a battery?
Yes. A portable power station charged by panels does not connect to the grid and so does not require utility interconnection. Manufacturer specs list units from 192Wh/220W up to 4,000Wh/4,000W.
Are other states passing plug-in solar laws?
Bright Saver reports 11 states have passed plug-in solar legislation, 2 states have active bills, and 21 states aim to reintroduce plug-in solar bills in 2027.