Solar Energy & Solar Power Resources

Solar Power in 40289 (Louisville, KY)

Solar Energy in 40289

Sorry, historical solar radition values for 40289 are currently unavailable, please check back later.

Solar Panels in 40289

Solar panels in 40289 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 40289

The total length of the day in 40289 (Louisville, KY) today (October 26, 2025) will be 10 hours and 49 minutes. [More]

Solar Energy in 40289 (Louisville, KY)

Solar Energy Data for 40289

See the chart below to see how different types of solar panel installations compare in 40289.

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

Solar Energy Analysis for 40289

Sorry, it is not possible to complete our solar energy analysis for 40289 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 40289

Solar Radiation Data in 40289

See the chart below for monthly solar radiation levels in 40289.

Sorry, data is not currently available.

Solar Radiation Analysis for 40289

Sorry, it is not possible to complete our solar radiation analysis for 40289 at this time.

Historical solar radiation data for 40289 is not currently available.

Please check back later.

Solar Power Comparison: 40289 vs. the U.S.

Solar Power Levels in 40289

Sorry, solar radiation data for 40289 is not currently available.

Solar Power: 40289 vs. the U.S.

Below is a month-by-month comparison of how average 40289 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 40289

Sunrise / Sunset in 40289

Sunrise/Sunset for October 26, 2025 ^[2]
- Sunrise: 8:02 am
- Sunset: 6:51 pm
- Length of Day: 10:49

Best Months for Solar in 40289

Monthly data not currently available.

Solar Panel Installs in 40289

We do not have data on solar panel installations in ZIP Code 40289 at the current time.

Solar Power Output in 40289

The Power of Solar in 40289

Monthly AC solar system output averages for 40289. Month-by-month solar power, as ranked by AC output, in 40289. ^[2]

AC output data is not currently available.

Solar Output Analysis for 40289

Sorry, it is not possible to complete our solar radiation analysis for 40289 at this time.

Historical solar radiation data for 40289 is not currently available.

Please check back later.

Weather Forecast for 40289 ^[5]

Sun Oct 26

53°F

Light Rain
Min: 49°F
Max: 56°F

Gentle Breeze: 9 mps E
Precip.: Chance of Rain
Humidity: 64%
Cloud cover: 100%

Mon Oct 27

61°F

Light Rain
Min: 50°F
Max: 65°F

Light breeze: 7 mps ENE
Precip.: Chance of Rain
Humidity: 52%
Cloud cover: 85%

Tue Oct 28

61°F

Broken Clouds
Min: 50°F
Max: 65°F

Light breeze: 6 mps ENE
Precip.: n/a
Humidity: 54%
Cloud cover: 81%

Wed Oct 29

51°F

Moderate Rain
Min: 48°F
Max: 58°F

Gentle Breeze: 9 mps ENE
Precip.: Chance of Rain
Humidity: 96%
Cloud cover: 100%

Thu Oct 30

51°F

Moderate Rain
Min: 45°F
Max: 52°F

Moderate breeze: 13 mps NNW
Precip.: Chance of Rain
Humidity: 62%
Cloud cover: 69%

Fri Oct 31

56°F

Broken Clouds
Min: 40°F
Max: 56°F

Gentle Breeze: 8 mps W
Precip.: n/a
Humidity: 43%
Cloud cover: 79%

More about 40289

About 40289

The ZIP code 40289 is associated with the city of Louisville in Jefferson County in Kentucky.

40289 Solar Energy & Power

To learn more about solar energy and solar power in 40289, or for more solar-related resources for KY, check out the U.S. Energy Information Administration.