Based on historical 04104 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 04104.[1]
The region associated with 04104 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 04104 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]
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 04104
Solar Radiation Data in 04104
See the chart below for monthly solar radiation levels in 04104.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 04104
The region associated with 04104 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 04104 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 04104 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]
Solar Power Comparison: 04104 vs. the U.S.
Solar Power Levels in 04104
The average monthly solar radiation level in 04104, 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).
Solar Power: 04104 vs. the U.S.
Below is a month-by-month comparison of how average 04104 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 04104 at the current time.
Solar Power Output in 04104
The Power of Solar in 04104
Monthly AC solar system output averages for 04104. Month-by-month solar power, as ranked by AC output, in 04104. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 04104
04104 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 04104 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 04104 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]
The ZIP code 04104 is associated with the city of Portland in Cumberland County in Maine.
04104 Solar Energy & Power
To learn more about solar energy and solar power in 04104, or for more solar-related resources for ME, check out the U.S. Energy Information Administration.
Did you know?
The solar energy that strikes the Earth in one hour could provide all of the Earth's energy needs for a complete year.