Electricity prices in Castro Valley, CA
Households in Castro Valley pay 29.8¢/kWh (California average), about $151 a month for 507 kWh a month, the California household average.
Monthly electricity bill by consumption
| Consumption | Per month | Per year |
|---|---|---|
| 500 kWh a month | $149 | $1,785 |
| 1,000 kWh a month | $298 | $3,570 |
| 1,500 kWh a month | $446 | $5,355 |
| 2,000 kWh a month | $595 | $7,140 |
At 29.8¢/kWh, the average household price including taxes and fixed charges (August 2026). Small households usually pay a little more per kWh, large ones a little less.
Business electricity in Castro Valley
Commercial customers pay 30.0¢/kWh and industrial customers 24.1¢/kWh (California average).
Home running costs in Castro Valley
In Castro Valley, running an 860 sq ft home costs on average $86 a month excluding rent – 2% more expensive than the US average.
Monthly cost breakdown
Default home: 860 sq ft, 2 people, 2,500 kWh electricity a year.
Castro Valley compared with the average for the United States
Your biggest saving opportunity
At today's prices a heat pump would cost about $120 a year more than a gas boiler in Castro Valley; check the incentives available before deciding.
Gas boiler vs heat pump calculator · Monthly home running cost calculator
Heating need through the year
Heating with a gas boiler: about 4,096 kWh a year at 7.0¢/kWh.
Solar potential in Castro Valley
1 kWp of solar panels produces about 1,728 kWh a year here. ($514 per year)
Not yet available for Castro Valley: Water.
How we calculate this
Electricity: average residential price per kWh in the state (August 2026). Heating: heating degree days for the location × floor area × building factor, priced with the gas boiler cost (state residential natural gas price). Water and rent are added when official data is available. Methodology
Nearby cities
More cities in California
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