Solar Energy & Solar Power Resources

Solar Power in 40203 (Louisville, KY)

Solar Energy in 40203

Sorry, historical solar radition values for 40203 are currently unavailable, please check back later.

Solar Panels in 40203

Solar panels in 40203 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 40203

The total length of the day in 40203 (Louisville, KY) today (December 10, 2025) will be 9 hours and 37 minutes. [More]

Solar Energy in 40203 (Louisville, KY)

Solar Energy Data for 40203

See the chart below to see how different types of solar panel installations compare in 40203.

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

Solar Energy Analysis for 40203

Sorry, it is not possible to complete our solar energy analysis for 40203 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 40203

Solar Radiation Data in 40203

See the chart below for monthly solar radiation levels in 40203.

Sorry, data is not currently available.

Solar Radiation Analysis for 40203

Sorry, it is not possible to complete our solar radiation analysis for 40203 at this time.

Historical solar radiation data for 40203 is not currently available.

Please check back later.

Solar Power Comparison: 40203 vs. the U.S.

Solar Power Levels in 40203

Sorry, solar radiation data for 40203 is not currently available.

Solar Power: 40203 vs. the U.S.

Below is a month-by-month comparison of how average 40203 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 Kentucky is not currently available.

Solar Data & Statistics for 40203

Sunrise / Sunset in 40203

Sunrise/Sunset for December 10, 2025 ^[2]
- Sunrise: 7:47 am
- Sunset: 5:24 pm
- Length of Day: 9:37

Best Months for Solar in 40203

Monthly data not currently available.

Solar Panel Installs in 40203

We do not have data on solar panel installations in ZIP Code 40203 at the current time.

Solar Power Output in 40203

The Power of Solar in 40203

Monthly AC solar system output averages for 40203. Month-by-month solar power, as ranked by AC output, in 40203. ^[2]

AC output data is not currently available.

Solar Output Analysis for 40203

Sorry, it is not possible to complete our solar radiation analysis for 40203 at this time.

Historical solar radiation data for 40203 is not currently available.

Please check back later.

Weather Forecast for 40203 ^[5]

Wed Dec 10

43°F

Moderate Rain
Min: 33°F
Max: 44°F

Fresh Breeze: 19 mps SW
Precip.: Chance of Rain
Humidity: 86%
Cloud cover: 100%

Thu Dec 11

33°F

Snow
Min: 27°F
Max: 37°F

Gentle Breeze: 10 mps NW
Precip.: Chance of Snow
Humidity: 62%
Cloud cover: 74%

Fri Dec 12

36°F

Snow
Min: 32°F
Max: 36°F

Light breeze: 6 mps SSE
Precip.: Chance of Snow
Humidity: 93%
Cloud cover: 100%

Sat Dec 13

29°F

Snow
Min: 21°F
Max: 30°F

Gentle Breeze: 8 mps WNW
Precip.: Chance of Snow
Humidity: 65%
Cloud cover: 100%

Sun Dec 14

14°F

Light Snow
Min: 8°F
Max: 18°F

Gentle Breeze: 9 mps NW
Precip.: Chance of Snow
Humidity: 71%
Cloud cover: 5%

Mon Dec 15

28°F

Few Clouds
Min: 11°F
Max: 31°F

Light breeze: 6 mps SSW
Precip.: n/a
Humidity: 55%
Cloud cover: 21%

More about 40203

About 40203

The ZIP code 40203 is associated with the city of Louisville in Jefferson County in Kentucky.

40203 Solar Energy & Power

To learn more about solar energy and solar power in 40203, or for more solar-related resources for KY, check out the U.S. Energy Information Administration.