See the chart below to see how different types of solar panel installations compare in Roanoke.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Roanoke, VA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Roanoke. [1]
Roanoke has an average monthly Global Horizontal Irradiance (GHI) of 4.22 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 4.23 kWh/m2/day. [1]
Solar installations in Roanoke that are always titled at the latitude of Roanoke (Average Tilt at Latitude or ATaL) average 4.92 kWh/m2/day, or about 17% greater than the average monthly GHI of 4.22 kWh/m2/day and approximately 16% greater than the average monthly DNI of 4.23 kWh/m2/day. [1]
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: 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: 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.
See the chart below for monthly solar radiation levels in Roanoke.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Roanoke, VA has a average annual solar radiation value of 5.08 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Roanoke is May with an average of 5.6 kWh/m2/day, followed by June at 5.6 kWh/m2/day and August at 5.55 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Roanoke (Virginia) are December with an average of 3.92 kWh/m2/day, followed by January with an average of 4.2 kWh/m2/day and February at 4.76 kWh/m2/day. [1]
The average monthly solar radiation level in Roanoke, VA, of 5.08 kilowatt hours per square meter per day (kWh/m2/day) is approximately 29% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 23% 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).
Below is a month-by-month comparison of how average Roanoke 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 Roanoke, VA at this current time.
Monthly AC solar system output averages for Roanoke (va). Month-by-month solar power, as ranked by AC output, in Roanoke. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Roanoke (VA) has a average annual solar AC output value of 5570.84 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Roanoke is May with an average of 514.67 kWhac, followed by August at 495.7 kWhac and March at 494.73 kWhac. [2]
The three months that historically average the lowest average solar output levels in Roanoke (Virginia) are December with an average of 378.9 kWhac, followed by January with an average of 412.98 kWhac and February at 415.42 kWhac. [2]
Sorry, Roanoke residential electricity prices are currently unavailable.
Please check back later.
Vote now: Given all of the data and analysis provided for Roanoke, is solar power a good choice for residents of this city?
Sorry, Virginia residential natural gas prices are currently unavailable.
Please check back later.
|
|
The city of Roanoke, VA in Roanoke County has an approximate population of 97,032. [6]
To learn more about solar energy and solar power Roanoke, VA, or for more solar-related resources for Roanoke, visit the U.S. Energy Information Administration.
It takes light about 8 minutes, 19 seconds to travel the 93,000,000 miles from the sun's surface to us on Earth.
Take the first step toward powering your home with solar energy.
Start now with an online solar savings estimate.
