City of Tacoma - (WA)
Municipal electric utility · Washington · #153 of 3,199 U.S. utilities by customers · EIA utility #18429
City of Tacoma - (WA) is a municipal electric utility serving 200,438 customers in Washington. In 2025 it sold 4,348 gigawatt-hours of electricity for $421.40M in revenue, an average realized rate of 9.69¢ per kWh across all customer classes and 11.45¢ per kWh for residential customers. Its reported service territory covers 4 counties. EIA records its activities as: generation, transmission, buying transmission, distribution, wholesale marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 177,554 | 1,957 | $224.01M | 11.45¢ | |
| Commercial | 20,005 | 353 | $37.56M | 10.65¢ | |
| Industrial | 2,878 | 2,038 | $159.74M | 7.84¢ | |
| Transportation | 1 | 0.8 | $83.80K | 10.04¢ | |
| Total | 200,438 | 4,348 | $421.40M | 9.69¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (919 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 184,103 | 4,643 | $380.88M | 9.88¢ |
| 2022 | 193,912 | 4,798 | $402.68M | 10.03¢ |
| 2023 | 196,833 | 4,553 | $410.93M | 10.37¢ |
| 2024 | 203,185 | 4,364 | $405.38M | 10.81¢ |
| 2025 | 200,438 | 4,348 | $421.40M | 11.45¢ |
Reliability (2025)
Average outage time (SAIDI): 172 minutes per customer per year
Average outages (SAIFI): 0.89 per customer
Average restoration time (CAIDI): 192 minutes
As reported for Washington under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 2,274 GWh
Wholesale power purchased: 3,273 GWh
Winter peak demand: 931 MW
Energy losses: 1.3% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 6.7% of 202,585 meters
Customer-sited generation (net metering): 3,041 installations, 21.5 MW of capacity
Counties served
King, WALewis, WAMason, WAPierce, WA
Other large utilities in Washington
- Puget Sound Energy Inc - 1,251,330 customers, residential 17.01¢
- City of Seattle - (WA) - 525,040 customers, residential 14.74¢
- Avista Corp - 424,411 customers, residential 13.37¢
- PUD No 1 of Snohomish County - (WA) - 385,159 customers, residential 12.08¢
- PUD No 1 of Clark County - (WA) - 243,809 customers, residential 10.63¢
- PUD No 1 of Benton County - 58,679 customers, residential 9.13¢
- PUD No 2 of Grant County - (WA) - 56,753 customers, residential 6.17¢
- PUD No 1 of Cowlitz County - 54,269 customers, residential 9.23¢
All Washington utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #18429 in the EIA frame.