Electricity rates — Washington
A household in Washington using 1,000 kWh a month pays about $703.80 a year on the cheapest of 10 generally available plans — RESIDENTIAL - SCHEDULE 35 from Modern Electric Water Company. Rates checked September 2, 2026. A further 12 schedules are published but restricted — means-tested, closed to new customers, or needing particular equipment — and they are priced further down.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Schedule RLC - Residential Low-Income: Citytime-of-use · tiered · low-income rate | $531.66 | −$172.14 | 4.4¢ |
| Schedule RLS-Residential Low-Income: Suburbantime-of-use · tiered · low-income rate | $531.66 | −$172.14 | 4.4¢ |
| Schedule RES-Residential Elderly/Disabled: Suburbantime-of-use · tiered · elderly or disabled customers only | $531.66 | −$172.14 | 4.4¢ |
| Schedule REC - Residential Elderly/Disabled: Citytime-of-use · tiered · elderly or disabled customers only | $531.74 | −$172.06 | 4.4¢ |
| Schedule REB-Residential Elderly/Disabled: Burientime-of-use · tiered · elderly or disabled customers only | $553.02 | −$150.78 | 4.6¢ |
| Schedule RLB-Residential Low Income: Burientime-of-use · tiered · low-income rate | $553.13 | −$150.67 | 4.6¢ |
| Schedule RET-Residential Elderly/Disabled: Tukwilatime-of-use · tiered · elderly or disabled customers only | $561.08 | −$142.72 | 4.7¢ |
| Schedule RLT-Residential Low-Income: Tukwilatime-of-use · tiered · low-income rate | $561.15 | −$142.65 | 4.7¢ |
| Schedule RLH- Residential Low-Income: Shorelinetime-of-use · tiered · low-income rate | $563.59 | −$140.21 | 4.7¢ |
| Schedule REH- Residential Elderly/Disabled: Shorelinetime-of-use · tiered · elderly or disabled customers only | $563.59 | −$140.21 | 4.7¢ |
| Schedule RLE-Residential Low Income: SeaTactime-of-use · tiered · low-income rate | $563.59 | −$140.21 | 4.7¢ |
| Schedule REE-Residential Elderly/Disabled: SeaTactime-of-use · tiered · elderly or disabled customers only | $563.59 | −$140.21 | 4.7¢ |
| RESIDENTIAL - SCHEDULE 35✓ cheapesttiered | $703.80 | — | 5.9¢ |
| Schedule RSC - Residential: Seattleflat rate | $1,820.17 | +$1,116.37 | 15.2¢ |
| Schedule RSE-Residential: Rentonflat rate | $1,841.77 | +$1,137.97 | 15.3¢ |
| Schedule RSL-Residential: Normandy Parkflat rate | $1,959.33 | +$1,255.53 | 16.3¢ |
| Schedule RST-Residential: Tukwilaflat rate | $1,973.68 | +$1,269.88 | 16.4¢ |
| Schedule RSE-Residential: SeaTacflat rate | $1,989.35 | +$1,285.55 | 16.6¢ |
| Schedule RSB-Residential: Burienflat rate | $1,989.35 | +$1,285.55 | 16.6¢ |
| Schedule RSH-Residential: Shorelineflat rate | $1,989.35 | +$1,285.55 | 16.6¢ |
| Schedule RSB-Residential: King Countyflat rate | $1,989.35 | +$1,285.55 | 16.6¢ |
| Schedule RSL-Residential: Lake Forest Parkflat rate | $1,989.39 | +$1,285.59 | 16.6¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $392.40 (RESIDENTIAL - SCHEDULE 35), dearest $1,075.59, a $683.19 spread
- 1,000 kWh/mo — cheapest $703.80 (RESIDENTIAL - SCHEDULE 35), dearest $1,989.39, a $1,285.59 spread
- 2,000 kWh/mo — cheapest $1,332.60 (RESIDENTIAL - SCHEDULE 35), dearest $3,816.99, a $2,484.39 spread
What a typical bill costs
At 1,000 kWh a month the 22 priceable plans here run from $703.80 on RESIDENTIAL - SCHEDULE 35 to $1,989.39 on Schedule RSL-Residential: Lake Forest Park, with a median of $1,981.51.
The spread is $1,285.59 a year — about $107.13 a month for identical electricity.
Effective rates, bill divided by kilowatt-hours, span 5.9¢ to 16.6¢ per kWh at that usage.
What each provider costs
2 utilities serve customers across Washington in this data. At 1,000 kWh a month the cheapest of them is Modern Electric Water Company at $703.80 a year on RESIDENTIAL - SCHEDULE 35; the dearest is City of Seattle, Washington (Utility Company) at $1,820.17.
That is $1,116.37 a year between the best each provider offers — and unlike a choice of plan, it is not a choice at all. Which utility serves an address is fixed by the service territory.
Cheapest available plan by provider: Modern Electric Water Company $703.80; City of Seattle, Washington (Utility Company) $1,820.17.
How the answer changes with usage
RESIDENTIAL - SCHEDULE 35 is cheapest at every level tested — $392.40 a year at 500 kWh a month, $1,332.60 at 2,000 kWh.
The penalty for a poor choice grows with usage: $683.19 a year at 500 kWh against $2,484.39 at 2,000 kWh.
How these plans are structured
Of 22 priceable plans: 13 tiered, 12 time-of-use, 9 flat-rate.
Fixed monthly charges run from $2.00 to $13.30.
Who provides these plans
These plans come from 2 utilities: City of Seattle, Washington (Utility Company), Modern Electric Water Company.
The largest saving available here
Moving from Schedule RSL-Residential: Lake Forest Park to RESIDENTIAL - SCHEDULE 35 saves $1,285.59 a year at 1,000 kWh a month, with no change in consumption.
What this does not cover
12 of these plans price by hour. WattClear does not know which hours a household uses, so those estimates carry lower confidence and say so on the figure.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 47.6588, -117.4260.