Based on historical Portsmouth, NH data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Portsmouth.[1]
Portsmouth has an average monthly Global Horizontal Irradiance (GHI) of 3.82 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% less than the average monthly Direct Normal Irradiance (DNI) of 3.89 kWh/m2/day. [1]
Solar installations in Portsmouth that are always titled at the latitude of Portsmouth (Average Tilt at Latitude or ATaL) average 4.52 kWh/m2/day, or about 18% greater than the average monthly GHI of 3.82 kWh/m2/day and approximately 16% greater than the average monthly DNI of 3.89 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 Portsmouth
Solar Radiation Data in Portsmouth, NH
See the chart below for monthly solar radiation levels in Portsmouth.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Portsmouth, NH
Portsmouth, NH has a average annual solar radiation value of 4.83 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Portsmouth is July with an average of 5.88 kWh/m2/day, followed by August at 5.72 kWh/m2/day and September at 5.61 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Portsmouth (New Hampshire) are December with an average of 3.17 kWh/m2/day, followed by November with an average of 3.31 kWh/m2/day and January at 3.71 kWh/m2/day. [1]
Solar Power Comparison: Portsmouth vs. the U.S.
Solar Power Levels in Portsmouth
The average monthly solar radiation level in Portsmouth, NH, of 4.83 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: Portsmouth vs. the U.S.
Below is a month-by-month comparison of how average Portsmouth 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 Portsmouth, NH at this current time.
Solar Power Output in Portsmouth
The Power of Solar in Portsmouth, NH
Monthly AC solar system output averages for Portsmouth (nh). Month-by-month solar power, as ranked by AC output, in Portsmouth. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Portsmouth, NH
Portsmouth (NH) has a average annual solar AC output value of 5535.48 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Portsmouth is July with an average of 544.41 kWhac, followed by May at 536.16 kWhac and August at 530.62 kWhac. [2]
The three months that historically average the lowest average solar output levels in Portsmouth (New Hampshire) are November with an average of 325.32 kWhac, followed by December with an average of 327.03 kWhac and January at 386.63 kWhac. [2]
Cost of Utilities in Portsmouth
Portsmouth Electricity Costs
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Solar Power Poll: Portsmouth
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Portsmouth Natural Gas Costs
Sorry, New Hampshire residential natural gas prices are currently unavailable.
The city of Portsmouth, NH in Rockingham County has an approximate population of 20,779. [6]
Portsmouth, NH Solar Energy
To learn more about solar energy and solar power Portsmouth, NH, or for more solar-related resources for Portsmouth, visit the U.S. Energy Information Administration.
Did you know?
It takes light about 8 minutes, 19 seconds to travel the 93,000,000 miles from the sun's surface to us on Earth.
