Solar Energy & Solar Power Resources

Solar Power in 94620 (Piedmont, CA)

Solar Energy in 94620

Sorry, historical solar radition values for 94620 are currently unavailable, please check back later.

Solar Panels in 94620

Solar panels in 94620 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 94620

The total length of the day in 94620 (Piedmont, CA) today (September 17, 2025) will be 12 hours and 23 minutes. [More]

Solar Energy in 94620 (Piedmont, CA)

Solar Energy Data for 94620

See the chart below to see how different types of solar panel installations compare in 94620.

Historical solar power output data for Piedmont is not currently available.

Solar Energy Analysis for 94620

Sorry, it is not possible to complete our solar energy analysis for 94620 at this time.

Please check back later.

Solar Energy Glossary

Global Horizontal Irradiance (GHI)

Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.

Direct Normal Irradiance (DNI)

Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.

Average Tilt at Latitude (ATaL)

Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.

Solar Radiation Levels in 94620

Solar Radiation Data in 94620

See the chart below for monthly solar radiation levels in 94620.

Sorry, data is not currently available.

Solar Radiation Analysis for 94620

Sorry, it is not possible to complete our solar radiation analysis for 94620 at this time.

Historical solar radiation data for 94620 is not currently available.

Please check back later.

Solar Power Comparison: 94620 vs. the U.S.

Solar Power Levels in 94620

Sorry, solar radiation data for 94620 is not currently available.

Solar Power: 94620 vs. the U.S.

Below is a month-by-month comparison of how average 94620 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). ^[1]

Sorry, solar radiation data for California is not currently available.

Solar Data & Statistics for 94620

Sunrise / Sunset in 94620

Sunrise/Sunset for September 17, 2025 ^[2]
- Sunrise: 6:51 am
- Sunset: 7:14 pm
- Length of Day: 12:23

Best Months for Solar in 94620

Monthly data not currently available.

Solar Panel Installs in 94620

We do not have data on solar panel installations in ZIP Code 94620 at the current time.

Solar Power Output in 94620

The Power of Solar in 94620

Monthly AC solar system output averages for 94620. Month-by-month solar power, as ranked by AC output, in 94620. ^[2]

AC output data is not currently available.

Solar Output Analysis for 94620

Sorry, it is not possible to complete our solar radiation analysis for 94620 at this time.

Historical solar radiation data for 94620 is not currently available.

Please check back later.

Weather Forecast for 94620 ^[5]

Wed Sep 17

81°F

Broken Clouds
Min: 60°F
Max: 83°F

Gentle Breeze: 9 mps W
Precip.: n/a
Humidity: 51%
Cloud cover: 84%

Thu Sep 18

71°F

Light Rain
Min: 60°F
Max: 71°F

Gentle Breeze: 10 mps W
Precip.: Chance of Rain
Humidity: 58%
Cloud cover: 100%

Fri Sep 19

72°F

Sky Is Clear
Min: 59°F
Max: 72°F

Gentle Breeze: 10 mps W
Precip.: n/a
Humidity: 58%
Cloud cover: 0%

Sat Sep 20

72°F

Sky Is Clear
Min: 60°F
Max: 72°F

Gentle Breeze: 9 mps W
Precip.: n/a
Humidity: 54%
Cloud cover: 2%

Sun Sep 21

76°F

Sky Is Clear
Min: 59°F
Max: 76°F

Light breeze: 7 mps W
Precip.: n/a
Humidity: 46%
Cloud cover: 0%

Mon Sep 22

77°F

Sky Is Clear
Min: 60°F
Max: 77°F

Light breeze: 7 mps WNW
Precip.: n/a
Humidity: 41%
Cloud cover: 0%

More about 94620

About 94620

The ZIP code 94620 is associated with the city of Piedmont in Alameda County in California.

94620 Solar Energy & Power

To learn more about solar energy and solar power in 94620, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.