USBIA-San Carlos Project electricity rates
Federal utility · Arizona · WECC region
USBIA-San Carlos Project is a federal power agency, serving 12,018 homes in Arizona. Its residential customers pay an average of 16.46¢/kWh including fixed and delivery charges, 9% 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.
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USBIA-San Carlos Project bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $82.30 | $15.40 |
| 1,000 kWh | $164.60 | $56.50 |
| 1,500 kWh | $246.90 | $101.50 |
| 2,000 kWh | $329.20 | $146.50 |
*Residential Service (effective 2006-03-06, $10.00/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.
USBIA-San Carlos Project residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential Service | 2006-03-06 | $10.00 | 0.00¢ first 50 kWh, 1.20¢ first 550 kWh, 9.00¢ after |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
USBIA-San Carlos Project rate history
2015–2025: +24% change in the average residential rate (13.23¢ → 16.37¢). Annual EIA-861 data.
Outages & reliability
Right now
Checking live outages…
Reliability history
USBIA-San Carlos Project 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 USBIA-San Carlos Project's counties, customers averaged 95 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Gila | 207 | 61 | 5,849 | 2025-09-14 |
| Pinal | 206 | 86 | 8,576 | 2025-08-26 |
| Maricopa | 98 | 13 | 62,447 | 2025-08-26 |
| Pima | 57 | 34 | 18,508 | 2025-11-12 |
| Graham | 0 | 0 | 6 | 2025-04-25 |
USBIA-San Carlos Project service area
USBIA-San Carlos Project serves 5 counties in Arizona and 34 ZIP codes.
Gila, Graham, Maricopa, Pima, Pinal
Cities: Chandler, Tempe, San Tan Valley, Casa Grande, Maricopa, Apache Junction, Queen Creek, Florence, Eloy, Sun Lakes, Coolidge, Arizona City, Gold Camp, Safford, Thatcher, Benson, Oracle, San Manuel, Swift Trail Junction, Sacaton, Sells, Cactus Flat, Mammoth, Casa Blanca
Programs, smart meters & solar
| Smart meters (AMI) for homes | 0% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
USBIA-San Carlos Project at a glance
| Ownership | Federal utility |
| Services | Distribution, Wholesale Marketing, Retail Marketing |
| Commercial rate | 15.86¢/kWh |
| Industrial rate | 13.37¢/kWh |
| Retail revenue (2025) | $36,403,000 |
| Electricity sold (2025) | 226,916 MWh |
| Peak demand | 61 MW summer · 45 MW winter |
| Balancing authority | WALC |
| EIA utility ID | 19604 |
Other utilities in Arizona
Frequently asked questions
What is USBIA-San Carlos Project's electricity rate?
USBIA-San Carlos Project residential customers pay an average of 16.46¢ 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 7% above the Arizona average of 15.40¢ and 9% below the U.S. average.
What is the average USBIA-San Carlos Project electric bill?
About $142 a month. The average USBIA-San Carlos Project home uses 865 kWh a month. At 1,000 kWh the bill would be about $165.
How many customers does USBIA-San Carlos Project have?
USBIA-San Carlos Project serves 12,018 residential customers and 14,403 customers in total in Arizona, across 5 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 USBIA-San Carlos Project before making decisions.