Tanner Electric Co-op electricity rates
Electric cooperative · Washington
Tanner Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 5,535 homes in Washington. Its residential customers pay an average of 14.22¢/kWh including fixed and delivery charges, 21% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend. This utility files EIA's short form, which reports total sales only, so the rate covers all customer classes.
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Tanner Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $71.10 | $83.62 |
| 1,000 kWh | $142.20 | $133.52 |
| 1,500 kWh | $213.30 | $183.42 |
| 2,000 kWh | $284.40 | $233.32 |
*Residential Service-Anderson Island (effective 2013-08-01, $33.72/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Tanner Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential Service-Anderson Island | 2013-08-01 | $33.72 | 9.98¢ |
| Residential Service | 2013-08-01 | $17.05 | 9.98¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Tanner Electric Co-op rate history
2015–2025: +8% change in the average residential rate (12.26¢ → 13.21¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
Tanner Electric Co-op doesn't report reliability metrics to EIA (common for small utilities).
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Tanner Electric Co-op's counties, customers averaged 9 hr 1 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Pierce | 1,161 | 100 | 86,311 | 2025-10-26 |
| Thurston | 895 | 61 | 50,307 | 2025-10-26 |
| King | 367 | 60 | 122,136 | 2025-10-26 |
Tanner Electric Co-op service area
Tanner Electric Co-op serves 3 counties in Washington and 14 ZIP codes.
King, Pierce, Thurston
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
Tanner Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | — |
| Retail revenue (2025) | $14,208,000 |
| Electricity sold (2025) | 107,596 MWh |
| Balancing authority | BPAT |
| EIA utility ID | 18448 |
Other utilities in Washington
Frequently asked questions
What is Tanner Electric Co-op's electricity rate?
Tanner Electric Co-op residential customers pay an average of 14.22¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 1% above the Washington average of 14.12¢ and 21% below the U.S. average.
What is the average Tanner Electric Co-op electric bill?
About $230 a month. The average Tanner Electric Co-op home uses 1,620 kWh a month. At 1,000 kWh the bill would be about $142.
How many customers does Tanner Electric Co-op have?
Tanner Electric Co-op serves 5,535 residential customers in Washington, across 3 counties.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Tanner Electric Co-op before making decisions.