Solar Energy & Solar Power Resources

Solar Power in 78221 (San Antonio, TX)

Solar Energy in 78221

Sorry, historical solar radition values for 78221 are currently unavailable, please check back later.

Solar Panels in 78221

Solar panels in 78221 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78221

The total length of the day in 78221 (San Antonio, TX) today (January 06, 2025) will be 10 hours and 24 minutes. [More]

Solar Energy in 78221 (San Antonio, TX)

Solar Energy Data for 78221

See the chart below to see how different types of solar panel installations compare in 78221.

Historical solar power output data for San Antonio is not currently available.

Solar Energy Analysis for 78221

Sorry, it is not possible to complete our solar energy analysis for 78221 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 78221

Solar Radiation Data in 78221

See the chart below for monthly solar radiation levels in 78221.

Sorry, data is not currently available.

Solar Radiation Analysis for 78221

Sorry, it is not possible to complete our solar radiation analysis for 78221 at this time.

Historical solar radiation data for 78221 is not currently available.

Please check back later.

Solar Power Comparison: 78221 vs. the U.S.

Solar Power Levels in 78221

Sorry, solar radiation data for 78221 is not currently available.

Solar Power: 78221 vs. the U.S.

Below is a month-by-month comparison of how average 78221 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 Texas is not currently available.

Solar Data & Statistics for 78221

Sunrise / Sunset in 78221

Sunrise/Sunset for January 06, 2025 ^[2]
- Sunrise: 7:28 am
- Sunset: 5:52 pm
- Length of Day: 10:24

Best Months for Solar in 78221

Monthly data not currently available.

Solar Panel Installs in 78221

We do not have data on solar panel installations in ZIP Code 78221 at the current time.

Solar Power Output in 78221

The Power of Solar in 78221

Monthly AC solar system output averages for 78221. Month-by-month solar power, as ranked by AC output, in 78221. ^[2]

AC output data is not currently available.

Solar Output Analysis for 78221

Sorry, it is not possible to complete our solar radiation analysis for 78221 at this time.

Historical solar radiation data for 78221 is not currently available.

Please check back later.

Weather Forecast for 78221 ^[5]

Mon Jan 6

45°F

Sky Is Clear
Min: 33°F
Max: 51°F

Moderate breeze: 17 mps NNE
Precip.: n/a
Humidity: 27%
Cloud cover: 0%

Tue Jan 7

45°F

Sky Is Clear
Min: 31°F
Max: 49°F

Moderate breeze: 14 mps NE
Precip.: n/a
Humidity: 15%
Cloud cover: 2%

Wed Jan 8

38°F

Overcast Clouds
Min: 36°F
Max: 40°F

Moderate breeze: 13 mps NE
Precip.: n/a
Humidity: 42%
Cloud cover: 100%

Thu Jan 9

38°F

Heavy Intensity Rain
Min: 38°F
Max: 41°F

Moderate breeze: 12 mps NE
Precip.: Chance of Rain
Humidity: 74%
Cloud cover: 100%

Fri Jan 10

44°F

Light Rain
Min: 41°F
Max: 48°F

Fresh Breeze: 20 mps NNW
Precip.: Chance of Rain
Humidity: 63%
Cloud cover: 98%

Sat Jan 11

53°F

Sky Is Clear
Min: 37°F
Max: 59°F

Moderate breeze: 14 mps SSW
Precip.: n/a
Humidity: 30%
Cloud cover: 0%

More about 78221

About 78221

The ZIP code 78221 is associated with the city of San Antonio in Bexar County in Texas.

78221 Solar Energy & Power

To learn more about solar energy and solar power in 78221, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.