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
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]
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).
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
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?
Wilmington Natural Gas Costs
Sorry, Delaware residential natural gas prices are currently unavailable.
The city of Wilmington, DE in New Castle County has an approximate population of 70,851. [6]
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?
Solar cells convert sunlight into electricity through a physical process known as the photovoltaic effect.
