Washington electricity rates
164 residential tariffs from 53 utilities. Across the 38 filed since 2020, the median costs $0.1472 per kWh at 1,000 kWh a month once fixed charges are included — the cheapest $0.0752, the most expensive $0.2459.
$0.1472median $/kWh
53utilities
164tariffs on file
16%time-of-use
25%filed since 2020
Rate structures in Washington
| Structure | Tariffs |
|---|---|
| Flat | 113 |
| Tiered | 23 |
| Time-of-use + tiered | 19 |
| Time-of-use | 8 |
| Unclassified | 1 |
Lowest effective rates at 1,000 kWh/month
Ranked across the 38 tariffs filed since 2020 — 25% of those on file here. Older filings are excluded because they are systematically below what utilities now charge; see methodology. Effective rate includes fixed charges, and availability restrictions may apply.
| Utility | Tariff | Structure | Filed | $/kWh | Annual |
|---|---|---|---|---|---|
| City of Tacoma, Washington (Utility Company) | Residential Service - Schedule A-2 | Flat | 2025 | $0.0752 | $902.52 |
| PUD No 1 of Cowlitz County | Residential Service Schedule 1 Single Phase | Flat | 2025 | $0.1012 | $1,214.85 |
| PUD No 1 of Cowlitz County | Residential Service Schedule 1 Three Phase | Flat | 2025 | $0.1085 | $1,302.45 |
| City of Tacoma, Washington (Utility Company) | RS - Schedule A-1 - Collectively Metered Apartments | Flat | 2025 | $0.1106 | $1,326.70 |
| City of Tacoma, Washington (Utility Company) | RS - Schedule A-1 - City of Fife - collectively metered apartments | Flat | 2025 | $0.1106 | $1,326.70 |
| City of Tacoma, Washington (Utility Company) | RS - Schedule A-1 - City of Fircrest - collectively metered apartments | Flat | 2025 | $0.1106 | $1,326.70 |
| City of Tacoma, Washington (Utility Company) | RS - Schedule A-1 - City of Lakewood - collectively metered apartments | Flat | 2025 | $0.1106 | $1,326.70 |
| City of Tacoma, Washington (Utility Company) | RS - Schedule A-1 - City of Steilacoom - collectively metered apartments | Flat | 2025 | $0.1106 | $1,326.70 |
| City of Tacoma, Washington (Utility Company) | Residential Service - Schedule A-1 | Flat | 2025 | $0.1157 | $1,388.50 |
| City of Tacoma, Washington (Utility Company) | Residential Service - Schedule A-1 - City of Fife | Flat | 2025 | $0.1157 | $1,388.50 |