Based on historical 40581 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 40581.[1]
The region associated with 40581 has an average monthly Global Horizontal Irradiance (GHI) of 4.11 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 3% greater than the average monthly Direct Normal Irradiance (DNI) of 3.99 kWh/m2/day. [1]
Solar installations in 40581 that are always titled at the latitude of Lexington (Average Tilt at Latitude or ATaL) average 4.68 kWh/m2/day, or about 14% greater than the average monthly GHI of 4.11 kWh/m2/day and approximately 17% greater than the average monthly DNI of 3.99 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 40581
Solar Radiation Data in 40581
See the chart below for monthly solar radiation levels in 40581.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 40581
The region associated with 40581 has a average annual solar radiation value of 4.9 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 40581 is August with an average of 6.01 kWh/m2/day, followed by July at 5.7 kWh/m2/day and June at 5.67 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 40581 are December with an average of 3.2 kWh/m2/day, followed by January with an average of 3.5 kWh/m2/day and February at 3.98 kWh/m2/day. [1]
Solar Power Comparison: 40581 vs. the U.S.
Solar Power Levels in 40581
The average monthly solar radiation level in 40581, of 4.9 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 26% 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: 40581 vs. the U.S.
Below is a month-by-month comparison of how average 40581 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 have data on solar panel installations in ZIP Code 40581 at the current time.
Solar Power Output in 40581
The Power of Solar in 40581
Monthly AC solar system output averages for 40581. Month-by-month solar power, as ranked by AC output, in 40581. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 40581
40581 has a average annual solar AC output value of 5532.27 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 40581 is August with an average of 548.02 kWhac, followed by July at 524.34 kWhac and May at 518.99 kWhac. [2]
The three months that historically average the lowest average solar output levels in 40581 are December with an average of 327.37 kWhac, followed by January with an average of 357.65 kWhac and February at 363.47 kWhac. [2]
Gentle Breeze: 11 mps S
Precip.: Chance of Rain
Humidity: 92%
Cloud cover: 100%
Thu Dec 26
50°F
Light Rain
Min: 44°F
Max: 52°F
Gentle Breeze: 9 mps SE
Precip.: Chance of Rain
Humidity: 85%
Cloud cover: 100%
More about 40581
About 40581
The ZIP code 40581 is associated with the city of Lexington in Fayette County in Kentucky.
40581 Solar Energy & Power
To learn more about solar energy and solar power in 40581, or for more solar-related resources for KY, check out the U.S. Energy Information Administration.
Did you know?
Various missions to space by different countries are known to utilize solar energy as a main power source.