See the chart below to see how different types of solar panel installations compare in 04101.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical 04101 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 04101. [1]
The region associated with 04101 has an average monthly Global Horizontal Irradiance (GHI) of 3.83 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% less than the average monthly Direct Normal Irradiance (DNI) of 4.14 kWh/m2/day. [1]
Solar installations in 04101 that are always titled at the latitude of Portland (Average Tilt at Latitude or ATaL) average 4.63 kWh/m2/day, or about 21% greater than the average monthly GHI of 3.83 kWh/m2/day and approximately 12% greater than the average monthly DNI of 4.14 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 04101.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
The region associated with 04101 has a average annual solar radiation value of 4.82 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 04101 is July with an average of 5.95 kWh/m2/day, followed by March at 5.66 kWh/m2/day and April at 5.62 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 04101 are December with an average of 2.96 kWh/m2/day, followed by November with an average of 3.38 kWh/m2/day and January at 3.64 kWh/m2/day. [1]
The average monthly solar radiation level in 04101, of 4.82 kilowatt hours per square meter per day (kWh/m2/day) is approximately 23% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 27% 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 04101 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 04101 at the current time.
Monthly AC solar system output averages for 04101. Month-by-month solar power, as ranked by AC output, in 04101. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
04101 has a average annual solar AC output value of 5594.28 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 04101 is March with an average of 574.31 kWhac, followed by July at 559.02 kWhac and April at 541.08 kWhac. [2]
The three months that historically average the lowest average solar output levels in 04101 are December with an average of 310.21 kWhac, followed by November with an average of 333.74 kWhac and January at 382.94 kWhac. [2]
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The ZIP code 04101 is associated with the city of Portland in Cumberland County in Maine.
To learn more about solar energy and solar power in 04101, or for more solar-related resources for ME, check out the U.S. Energy Information Administration.
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.
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