Based on historical Washington, PA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Washington.[1]
Washington has an average monthly Global Horizontal Irradiance (GHI) of 3.84 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 10% greater than the average monthly Direct Normal Irradiance (DNI) of 3.48 kWh/m2/day. [1]
Solar installations in Washington that are always titled at the latitude of Washington (Average Tilt at Latitude or ATaL) average 4.37 kWh/m2/day, or about 14% greater than the average monthly GHI of 3.84 kWh/m2/day and approximately 26% greater than the average monthly DNI of 3.48 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 Washington
Solar Radiation Data in Washington, PA
See the chart below for monthly solar radiation levels in Washington.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Washington, PA
Washington, PA has a average annual solar radiation value of 4.56 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Washington is August with an average of 5.81 kWh/m2/day, followed by July at 5.64 kWh/m2/day and June at 5.41 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Washington (Pennsylvania) are December with an average of 2.77 kWh/m2/day, followed by January with an average of 3.1 kWh/m2/day and February at 3.77 kWh/m2/day. [1]
Solar Power Comparison: Washington vs. the U.S.
Solar Power Levels in Washington
The average monthly solar radiation level in Washington, PA, of 4.56 kilowatt hours per square meter per day (kWh/m2/day) is approximately 16% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 31% 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: Washington vs. the U.S.
Below is a month-by-month comparison of how average Washington 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 Washington, PA at this current time.
Solar Power Output in Washington
The Power of Solar in Washington, PA
Monthly AC solar system output averages for Washington (pa). Month-by-month solar power, as ranked by AC output, in Washington. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Washington, PA
Washington (PA) has a average annual solar AC output value of 5034.32 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Washington is August with an average of 523.04 kWhac, followed by July at 510.02 kWhac and May at 491.26 kWhac. [2]
The three months that historically average the lowest average solar output levels in Washington (Pennsylvania) are December with an average of 277.25 kWhac, followed by January with an average of 311.2 kWhac and February at 338.51 kWhac. [2]
Cost of Utilities in Washington
Washington Electricity Costs
Sorry, Washington residential electricity prices are currently unavailable.
Please check back later.
Solar Power Poll: Washington
Vote now: Given all of the data and analysis provided for Washington, is solar power a good choice for residents of this city?
Washington Natural Gas Costs
Sorry, Pennsylvania residential natural gas prices are currently unavailable.
The city of Washington, PA in Washington County has an approximate population of 13,663. [6]
Washington, PA Solar Energy
To learn more about solar energy and solar power Washington, PA, or for more solar-related resources for Washington, visit the U.S. Energy Information Administration.
Did you know?
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.
