Solar Energy & Solar Power Resources

Solar Power in 99901 (Ketchikan, AK)

Solar Energy in 99901

Sorry, historical solar radition values for 99901 are currently unavailable, please check back later.

Solar Panels in 99901

Solar panels in 99901 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 99901

The total length of the day in 99901 (Ketchikan, AK) today (July 31, 2026) will be 16 hours and 5 minutes. [More]

Solar Energy in 99901 (Ketchikan, AK)

Solar Energy Data for 99901

See the chart below to see how different types of solar panel installations compare in 99901.

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

Solar Energy Analysis for 99901

Sorry, it is not possible to complete our solar energy analysis for 99901 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 99901

Solar Radiation Data in 99901

See the chart below for monthly solar radiation levels in 99901.

Sorry, data is not currently available.

Solar Radiation Analysis for 99901

Sorry, it is not possible to complete our solar radiation analysis for 99901 at this time.

Historical solar radiation data for 99901 is not currently available.

Please check back later.

Solar Power Comparison: 99901 vs. the U.S.

Solar Power Levels in 99901

Sorry, solar radiation data for 99901 is not currently available.

Solar Power: 99901 vs. the U.S.

Below is a month-by-month comparison of how average 99901 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 Alaska is not currently available.

Solar Data & Statistics for 99901

Sunrise / Sunset in 99901

Sunrise/Sunset for July 31, 2026 ^[2]
- Sunrise: 4:50 am
- Sunset: 8:55 pm
- Length of Day: 16:5

Best Months for Solar in 99901

Monthly data not currently available.

Solar Panel Installs in 99901

We do not have data on solar panel installations in ZIP Code 99901 at the current time.

Solar Power Output in 99901

The Power of Solar in 99901

Monthly AC solar system output averages for 99901. Month-by-month solar power, as ranked by AC output, in 99901. ^[2]

AC output data is not currently available.

Solar Output Analysis for 99901

Sorry, it is not possible to complete our solar radiation analysis for 99901 at this time.

Historical solar radiation data for 99901 is not currently available.

Please check back later.

Weather Forecast for 99901 ^[5]

Fri Jul 31

56°F

Moderate Rain
Min: 51°F
Max: 59°F

Light breeze: 5 mps ESE
Precip.: Chance of Rain
Humidity: 87%
Cloud cover: 74%

Sat Aug 1

57°F

Moderate Rain
Min: 50°F
Max: 57°F

Light breeze: 5 mps SSW
Precip.: Chance of Rain
Humidity: 78%
Cloud cover: 70%

Sun Aug 2

57°F

Light Rain
Min: 52°F
Max: 59°F

Calm: 3 mps WSW
Precip.: Chance of Rain
Humidity: 82%
Cloud cover: 100%

Mon Aug 3

63°F

Few Clouds
Min: 52°F
Max: 65°F

Light breeze: 6 mps WNW
Precip.: n/a
Humidity: 68%
Cloud cover: 23%

Tue Aug 4

65°F

Sky Is Clear
Min: 53°F
Max: 66°F

Light breeze: 7 mps NW
Precip.: n/a
Humidity: 55%
Cloud cover: 2%

Wed Aug 5

64°F

Broken Clouds
Min: 52°F
Max: 66°F

Gentle Breeze: 9 mps NW
Precip.: n/a
Humidity: 60%
Cloud cover: 56%

More about 99901

About 99901

The ZIP code 99901 is associated with the city of Ketchikan in Ketchikan Gateway County in Alaska.

99901 Solar Energy & Power

To learn more about solar energy and solar power in 99901, or for more solar-related resources for AK, check out the U.S. Energy Information Administration.