See the chart below to see how different types of solar panel installations compare in Somerville.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Somerville, MA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Somerville. [1]
Somerville has an average monthly Global Horizontal Irradiance (GHI) of 3.84 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% greater than the average monthly Direct Normal Irradiance (DNI) of 3.79 kWh/m2/day. [1]
Solar installations in Somerville that are always titled at the latitude of Somerville (Average Tilt at Latitude or ATaL) average 4.57 kWh/m2/day, or about 19% greater than the average monthly GHI of 3.84 kWh/m2/day and approximately 21% greater than the average monthly DNI of 3.79 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 Somerville.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Somerville, MA has a average annual solar radiation value of 4.88 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Somerville is July with an average of 6.02 kWh/m2/day, followed by August at 5.79 kWh/m2/day and June at 5.55 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Somerville (Massachusetts) are December with an average of 3.32 kWh/m2/day, followed by November with an average of 3.61 kWh/m2/day and January at 3.87 kWh/m2/day. [1]
The average monthly solar radiation level in Somerville, MA, of 4.88 kilowatt hours per square meter per day (kWh/m2/day) is approximately 24% 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).
Below is a month-by-month comparison of how average Somerville 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 Somerville, MA at this current time.
Monthly AC solar system output averages for Somerville (ma). Month-by-month solar power, as ranked by AC output, in Somerville. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Somerville (MA) has a average annual solar AC output value of 5426.3 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Somerville is July with an average of 544.51 kWhac, followed by August at 523.74 kWhac and April at 495.96 kWhac. [2]
The three months that historically average the lowest average solar output levels in Somerville (Massachusetts) are December with an average of 331.36 kWhac, followed by November with an average of 341.34 kWhac and January at 392.38 kWhac. [2]
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The city of Somerville, MA in Middlesex County has an approximate population of 75,754. [6]
To learn more about solar energy and solar power Somerville, MA, or for more solar-related resources for Somerville, visit the U.S. Energy Information Administration.
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