Solar Energy & Solar Power Resources

Solar Power in 40261 (Louisville, KY)

Solar Energy in 40261

Sorry, historical solar radition values for 40261 are currently unavailable, please check back later.

Solar Panels in 40261

Solar panels in 40261 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 40261

The total length of the day in 40261 (Louisville, KY) today (September 30, 2025) will be 11 hours and 52 minutes. [More]

Solar Energy in 40261 (Louisville, KY)

Solar Energy Data for 40261

See the chart below to see how different types of solar panel installations compare in 40261.

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

Solar Energy Analysis for 40261

Sorry, it is not possible to complete our solar energy analysis for 40261 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 40261

Solar Radiation Data in 40261

See the chart below for monthly solar radiation levels in 40261.

Sorry, data is not currently available.

Solar Radiation Analysis for 40261

Sorry, it is not possible to complete our solar radiation analysis for 40261 at this time.

Historical solar radiation data for 40261 is not currently available.

Please check back later.

Solar Power Comparison: 40261 vs. the U.S.

Solar Power Levels in 40261

Sorry, solar radiation data for 40261 is not currently available.

Solar Power: 40261 vs. the U.S.

Below is a month-by-month comparison of how average 40261 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 40261

Sunrise / Sunset in 40261

Sunrise/Sunset for September 30, 2025 ^[2]
- Sunrise: 7:36 am
- Sunset: 7:28 pm
- Length of Day: 11:52

Best Months for Solar in 40261

Monthly data not currently available.

Solar Panel Installs in 40261

We do not have data on solar panel installations in ZIP Code 40261 at the current time.

Solar Power Output in 40261

The Power of Solar in 40261

Monthly AC solar system output averages for 40261. Month-by-month solar power, as ranked by AC output, in 40261. ^[2]

AC output data is not currently available.

Solar Output Analysis for 40261

Sorry, it is not possible to complete our solar radiation analysis for 40261 at this time.

Historical solar radiation data for 40261 is not currently available.

Please check back later.

Weather Forecast for 40261 ^[5]

Tue Sep 30

84°F

Sky Is Clear
Min: 60°F
Max: 86°F

Light breeze: 7 mps NE
Precip.: n/a
Humidity: 51%
Cloud cover: 0%

Wed Oct 1

81°F

Few Clouds
Min: 58°F
Max: 85°F

Light breeze: 7 mps ENE
Precip.: n/a
Humidity: 28%
Cloud cover: 22%

Thu Oct 2

81°F

Overcast Clouds
Min: 62°F
Max: 85°F

Light breeze: 5 mps ENE
Precip.: n/a
Humidity: 40%
Cloud cover: 86%

Fri Oct 3

82°F

Sky Is Clear
Min: 66°F
Max: 86°F

Light breeze: 7 mps WSW
Precip.: n/a
Humidity: 47%
Cloud cover: 6%

Sat Oct 4

85°F

Sky Is Clear
Min: 67°F
Max: 85°F

Light breeze: 4 mps S
Precip.: n/a
Humidity: 40%
Cloud cover: 0%

Sun Oct 5

84°F

Sky Is Clear
Min: 65°F
Max: 84°F

Light breeze: 7 mps SSW
Precip.: n/a
Humidity: 35%
Cloud cover: 0%

More about 40261

About 40261

The ZIP code 40261 is associated with the city of Louisville in Jefferson County in Kentucky.

40261 Solar Energy & Power

To learn more about solar energy and solar power in 40261, or for more solar-related resources for KY, check out the U.S. Energy Information Administration.