Solar System Sizing Tool — San Jose, CA
Use our interactive tool to determine the right solar system size for your home in San Jose. Adjust your monthly electricity bill and home size to see a personalized recommendation based on local solar conditions.
Size Your Solar System
$
Local rate: 34¢/kWh
ft
Peak sun hours: 5.4h/day
4.6
System Size (kW)
12
Panels Needed
216
Roof Space (sq ft)
$13,014
Est. Cost
9,000
Annual kWh
100%
Energy Offset
Energy Offset100% of your usage covered by solar
0%50%100%
How We Calculate Your System Size
Your recommended solar system size is based on several factors specific to San Jose, CA:
- Electricity usage: Your monthly bill is converted to annual kWh consumption using the local rate of 34¢/kWh.
- Solar irradiance: San Jose receives an average of 5.4 peak sun hours per day, which determines how much energy each panel produces.
- Panel specifications: We use 400W panels, each requiring approximately 18 sq ft of roof space, which is standard for modern residential installations.
- Roof space: The total roof area needed depends on the number of panels. The average home in San Jose is 1,700 sq ft.
Solar at a Glance: San Jose, CA
34¢
Avg Rate / kWh
5.4h
Peak Sun Hours / Day
4.6 kW
Avg Recommended Size
12
Avg Panels Needed
$13,014
Est. Cost (before incentives)
Pacific Gas & Electric (PG&E)
Utility Provider
Other Cities in California
Related Resources
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