Solar Energy & Solar Power Resources

Solar Power in 91979 (Spring Valley, CA)

Solar Energy in 91979

Sorry, historical solar radition values for 91979 are currently unavailable, please check back later.

Solar Panels in 91979

Solar panels in 91979 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 91979

The total length of the day in 91979 (Spring Valley, CA) today (May 15, 2026) will be 13 hours and 54 minutes. [More]

Solar Energy in 91979 (Spring Valley, CA)

Solar Energy Data for 91979

See the chart below to see how different types of solar panel installations compare in 91979.

Historical solar power output data for Spring Valley is not currently available.

Solar Energy Analysis for 91979

Sorry, it is not possible to complete our solar energy analysis for 91979 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 91979

Solar Radiation Data in 91979

See the chart below for monthly solar radiation levels in 91979.

Sorry, data is not currently available.

Solar Radiation Analysis for 91979

Sorry, it is not possible to complete our solar radiation analysis for 91979 at this time.

Historical solar radiation data for 91979 is not currently available.

Please check back later.

Solar Power Comparison: 91979 vs. the U.S.

Solar Power Levels in 91979

Sorry, solar radiation data for 91979 is not currently available.

Solar Power: 91979 vs. the U.S.

Below is a month-by-month comparison of how average 91979 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 91979

Sunrise / Sunset in 91979

Sunrise/Sunset for May 15, 2026 ^[2]
- Sunrise: 5:47 am
- Sunset: 7:41 pm
- Length of Day: 13:54

Best Months for Solar in 91979

Monthly data not currently available.

Solar Panel Installs in 91979

We do not have data on solar panel installations in ZIP Code 91979 at the current time.

Solar Power Output in 91979

The Power of Solar in 91979

Monthly AC solar system output averages for 91979. Month-by-month solar power, as ranked by AC output, in 91979. ^[2]

AC output data is not currently available.

Solar Output Analysis for 91979

Sorry, it is not possible to complete our solar radiation analysis for 91979 at this time.

Historical solar radiation data for 91979 is not currently available.

Please check back later.

Weather Forecast for 91979 ^[5]

Fri May 15

71°F

Sky Is Clear
Min: 61°F
Max: 72°F

Gentle Breeze: 11 mps WSW
Precip.: n/a
Humidity: 49%
Cloud cover: 0%

Sat May 16

70°F

Sky Is Clear
Min: 61°F
Max: 70°F

Moderate breeze: 14 mps SW
Precip.: n/a
Humidity: 50%
Cloud cover: 1%

Sun May 17

70°F

Broken Clouds
Min: 60°F
Max: 71°F

Moderate breeze: 16 mps SSW
Precip.: n/a
Humidity: 50%
Cloud cover: 53%

Mon May 18

71°F

Sky Is Clear
Min: 61°F
Max: 72°F

Moderate breeze: 13 mps SW
Precip.: n/a
Humidity: 47%
Cloud cover: 0%

Tue May 19

74°F

Broken Clouds
Min: 62°F
Max: 76°F

Gentle Breeze: 10 mps WSW
Precip.: n/a
Humidity: 44%
Cloud cover: 67%

Wed May 20

73°F

Overcast Clouds
Min: 64°F
Max: 75°F

Gentle Breeze: 9 mps WSW
Precip.: n/a
Humidity: 49%
Cloud cover: 100%

More about 91979

About 91979

The ZIP code 91979 is associated with the city of Spring Valley in San Diego County in California.

91979 Solar Energy & Power

To learn more about solar energy and solar power in 91979, or for more solar-related resources for CA, check out the U.S. Energy Information Administration.