Solar Energy & Solar Power Resources

Solar Energy in Waltham, MA

Solar Energy in Waltham

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

Solar Panels in Waltham

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

Sunrise & Sunset in Waltham

The total length of the day in Waltham, MA today (September 09, 2026) will be 12 hours and 49 minutes. [More]

Solar Power in Waltham, MA

Solar Energy Data in Waltham, MA

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

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

Solar Energy Analysis for Waltham, MA

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

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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 Waltham

Solar Radiation Data in Waltham, MA

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

Sorry, data is not currently available.

Solar Radiation Analysis for Waltham, MA

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

Historical solar radiation data for Waltham is not currently available.

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

Solar Power Levels in Waltham

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

Solar Power: Waltham vs. the U.S.

Below is a month-by-month comparison of how average Waltham 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 Massachusetts is not currently available.

Solar Data & Statistics for Waltham

Sunrise / Sunset in Waltham

Sunrise/Sunset for September 09, 2026 ^[2]
- Sunrise: 5:17 am
- Sunset: 6:06 pm
- Length of Day: 12:49

Best Months for Solar in Waltham

Monthly data not currently available.

Solar Panel Installs in Waltham

We do not currently have data on solar panel installations in the city of Waltham, MA at this current time.

Solar Power Output in Waltham

The Power of Solar in Waltham, MA

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

AC output data is not currently available.

Solar Output Analysis for Waltham, MA

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

Historical solar radiation data for Waltham is not currently available.

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Cost of Utilities in Waltham

Waltham Electricity Costs

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Solar Power Poll: Waltham

Vote now: Given all of the data and analysis provided for Waltham, is solar power a good choice for residents of this city?

Waltham Natural Gas Costs

Sorry, Massachusetts residential natural gas prices are currently unavailable.

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Weather Forecast for Waltham, MA ^[5]

Wed Sep 9

67°F

Light Rain
Min: 58°F
Max: 78°F

Gentle Breeze: 12 mps SSW
Precip.: Chance of Rain
Humidity: 64%
Cloud cover: 97%

Thu Sep 10

81°F

Light Rain
Min: 66°F
Max: 85°F

Moderate breeze: 15 mps W
Precip.: Chance of Rain
Humidity: 45%
Cloud cover: 84%

Fri Sep 11

71°F

Overcast Clouds
Min: 57°F
Max: 75°F

Gentle Breeze: 9 mps NW
Precip.: n/a
Humidity: 34%
Cloud cover: 98%

Sat Sep 12

73°F

Sky Is Clear
Min: 52°F
Max: 79°F

Gentle Breeze: 8 mps S
Precip.: n/a
Humidity: 34%
Cloud cover: 0%

Sun Sep 13

74°F

Broken Clouds
Min: 54°F
Max: 81°F

Gentle Breeze: 9 mps SW
Precip.: n/a
Humidity: 46%
Cloud cover: 56%

Mon Sep 14

79°F

Light Rain
Min: 65°F
Max: 86°F

Gentle Breeze: 8 mps WSW
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 100%

More about Waltham

About Waltham

The city of Waltham, MA in Middlesex County has an approximate population of 60,632. ^[6]

Waltham, MA Solar Energy

To learn more about solar energy and solar power Waltham, MA, or for more solar-related resources for Waltham, visit the U.S. Energy Information Administration.