Solar Energy & Solar Power Resources

Solar Power in 04104 (Portland, ME)

Solar Energy in 04104

Sorry, historical solar radition values for 04104 are currently unavailable, please check back later.

Solar Panels in 04104

Solar panels in 04104 that will produce the maximum solar energy output. [More]

Sunrise & Sunset in 04104

The total length of the day in 04104 (Portland, ME) today (September 14, 2026) will be 12 hours and 36 minutes. [More]

Solar Energy in 04104 (Portland, ME)

Solar Energy Data for 04104

See the chart below to see how different types of solar panel installations compare in 04104.

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

Solar Energy Analysis for 04104

Sorry, it is not possible to complete our solar energy analysis for 04104 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 04104

Solar Radiation Data in 04104

See the chart below for monthly solar radiation levels in 04104.

Sorry, data is not currently available.

Solar Radiation Analysis for 04104

Sorry, it is not possible to complete our solar radiation analysis for 04104 at this time.

Historical solar radiation data for 04104 is not currently available.

Please check back later.

Solar Power Comparison: 04104 vs. the U.S.

Solar Power Levels in 04104

Sorry, solar radiation data for 04104 is not currently available.

Solar Power: 04104 vs. the U.S.

Below is a month-by-month comparison of how average 04104 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 Maine is not currently available.

Solar Data & Statistics for 04104

Sunrise / Sunset in 04104

Sunrise/Sunset for September 14, 2026 ^[2]
- Sunrise: 6:18 am
- Sunset: 6:54 pm
- Length of Day: 12:36

Best Months for Solar in 04104

Monthly data not currently available.

Solar Panel Installs in 04104

We do not have data on solar panel installations in ZIP Code 04104 at the current time.

Solar Power Output in 04104

The Power of Solar in 04104

Monthly AC solar system output averages for 04104. Month-by-month solar power, as ranked by AC output, in 04104. ^[2]

AC output data is not currently available.

Solar Output Analysis for 04104

Sorry, it is not possible to complete our solar radiation analysis for 04104 at this time.

Historical solar radiation data for 04104 is not currently available.

Please check back later.

Weather Forecast for 04104 ^[5]

Mon Sep 14

69°F

Sky Is Clear
Min: 56°F
Max: 69°F

Moderate breeze: 16 mps NNW
Precip.: n/a
Humidity: 50%
Cloud cover: 0%

Tue Sep 15

63°F

Sky Is Clear
Min: 49°F
Max: 63°F

Gentle Breeze: 9 mps SSE
Precip.: n/a
Humidity: 46%
Cloud cover: 3%

Wed Sep 16

72°F

Scattered Clouds
Min: 54°F
Max: 76°F

Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 52%
Cloud cover: 31%

Thu Sep 17

67°F

Light Rain
Min: 59°F
Max: 67°F

Light breeze: 7 mps NNE
Precip.: Chance of Rain
Humidity: 69%
Cloud cover: 100%

Fri Sep 18

73°F

Light Rain
Min: 60°F
Max: 75°F

Gentle Breeze: 8 mps N
Precip.: Chance of Rain
Humidity: 50%
Cloud cover: 7%

Sat Sep 19

60°F

Moderate Rain
Min: 52°F
Max: 61°F

Gentle Breeze: 8 mps SSE
Precip.: Chance of Rain
Humidity: 56%
Cloud cover: 89%

More about 04104

About 04104

The ZIP code 04104 is associated with the city of Portland in Cumberland County in Maine.

04104 Solar Energy & Power

To learn more about solar energy and solar power in 04104, or for more solar-related resources for ME, check out the U.S. Energy Information Administration.