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Solar Energy in Wilmington, DE

Solar Energy in Wilmington

The month of July has the highest historical solar radition values in Wilmington with an average of 5.83 kWh/m2/day. [More]

Solar Panels in Wilmington

Solar panels in Wilmington that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in Wilmington

The total length of the day in Wilmington, DE today (April 21, 2024) will be 13 hours and 35 minutes. [More]

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Wilmington, DE Solar Energy

Solar Power in Wilmington, DE

Solar Energy Data in Wilmington, DE

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

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.


Solar Energy Analysis for Wilmington, DE

Solar Radiation Data in Wilmington

Based on historical Wilmington, DE data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Wilmington. [1]

Wilmington has an average monthly Global Horizontal Irradiance (GHI) of 4.09 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 4.11 kWh/m2/day. [1]

Solar installations in Wilmington that are always titled at the latitude of Wilmington (Average Tilt at Latitude or ATaL) average 4.81 kWh/m2/day, or about 18% greater than the average monthly GHI of 4.09 kWh/m2/day and approximately 17% greater than the average monthly DNI of 4.11 kWh/m2/day. [1]

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 Wilmington

Solar Radiation Data in Wilmington, DE

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

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)

Solar Radiation Analysis for Wilmington, DE

Solar Radiation Data in Wilmington

Wilmington, DE has a average annual solar radiation value of 4.93 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Wilmington is July with an average of 5.83 kWh/m2/day, followed by August at 5.82 kWh/m2/day and June at 5.61 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Wilmington (Delaware) are December with an average of 3.53 kWh/m2/day, followed by January with an average of 3.72 kWh/m2/day and November at 3.94 kWh/m2/day. [1]

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

Solar Power Levels in Wilmington

The average monthly solar radiation level in Wilmington, DE, of 4.93 kilowatt hours per square meter per day (kWh/m2/day) is approximately 25% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 25% less than the average level of 6.61 kWh/m2/day in a city with historically high levels (NV). [1]


→ Values listed as 0 (zero) are not available (N/A).

Solar Power: Wilmington vs. the U.S.

Below is a month-by-month comparison of how average Wilmington solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). [1]

→ k/m/d = kWh/m2/day = kilowatt hours per square meter per day.
→ Values listed as 0 (zero) are not available (N/A).

Solar Data & Statistics for Wilmington

Sunrise / Sunset in Wilmington

  • Sunrise/Sunset for April 21, 2024 [2]
    • Sunrise: 6:13 am
    • Sunset: 7:48 pm
    • Length of Day: 13:35
Solar Energy Statistics for Wilmington

Best Months for Solar in Wilmington

  • Top Solar Power Months Historically [1]
    • Solar Radiation July (5.83 kWh/m2/day)
    • ATaL: July (5.65 kWh/m2/day)
    • DNI: July (4.75 kWh/m2/day)
    • GHI: July (6.07 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Wilmington

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

Solar Power Output in Wilmington

The Power of Solar in Wilmington, DE

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

* Amounts listed in kWhac (kilowatt hours (AC))

Solar Output Analysis for Wilmington, DE

Solar Radiation Data in Wilmington

Wilmington (DE) has a average annual solar AC output value of 5620.51 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Wilmington is July with an average of 539.08 kWhac, followed by August at 534.9 kWhac and May at 521.45 kWhac. [2]

The three months that historically average the lowest average solar output levels in Wilmington (Delaware) are December with an average of 362.63 kWhac, followed by November with an average of 380.91 kWhac and January at 387.36 kWhac. [2]

Cost of Utilities in Wilmington

Wilmington Electricity Costs

Sorry, Wilmington residential electricity prices are currently unavailable.

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Solar Power Poll: Wilmington

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

Yes, solar power is a great option  
No, solar power isn't a good option

Wilmington Natural Gas Costs

Sorry, Delaware residential natural gas prices are currently unavailable.

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Weather Forecast for Wilmington, DE [5]

Sun Apr 21
50°F
Overcast Clouds
Min: 41°F
Max: 52°F
Gentle Breeze: 10 mps NNW
Precip.: n/a
Humidity: 44%
Cloud cover: 100%
Mon Apr 22
57°F
Sky Is Clear
Min: 39°F
Max: 58°F
Gentle Breeze: 11 mps NW
Precip.: n/a
Humidity: 33%
Cloud cover: 0%
Tue Apr 23
63°F
Few Clouds
Min: 42°F
Max: 65°F
Gentle Breeze: 10 mps S
Precip.: n/a
Humidity: 38%
Cloud cover: 20%
Wed Apr 24
65°F
Light Rain
Min: 43°F
Max: 65°F
Moderate breeze: 16 mps WNW
Precip.: Chance of Rain
Humidity: 45%
Cloud cover: 50%
Thu Apr 25
50°F
Sky Is Clear
Min: 36°F
Max: 59°F
Gentle Breeze: 9 mps N
Precip.: n/a
Humidity: 28%
Cloud cover: 0%
Fri Apr 26
57°F
Sky Is Clear
Min: 41°F
Max: 63°F
Gentle Breeze: 11 mps SSE
Precip.: n/a
Humidity: 37%
Cloud cover: 1%

More about Wilmington

About Wilmington

The city of Wilmington, DE in New Castle County has an approximate population of 70,851. [6]

Wilmington Solar Power

Wilmington, DE Solar Energy

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

Did you know?

Some tax incentives and rebate programs are designed to spur the use of solar energy. These vary by location.

Other Cities in Delaware

ZIP Codes in DE


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References

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