Based on historical Portland, IN data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Portland.[1]
Portland has an average monthly Global Horizontal Irradiance (GHI) of 3.92 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 7% greater than the average monthly Direct Normal Irradiance (DNI) of 3.65 kWh/m2/day. [1]
Solar installations in Portland that are always titled at the latitude of Portland (Average Tilt at Latitude or ATaL) average 4.45 kWh/m2/day, or about 14% greater than the average monthly GHI of 3.92 kWh/m2/day and approximately 22% greater than the average monthly DNI of 3.65 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 Portland
Solar Radiation Data in Portland, IN
See the chart below for monthly solar radiation levels in Portland.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Portland, IN
Portland, IN has a average annual solar radiation value of 4.67 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Portland is August with an average of 5.94 kWh/m2/day, followed by July at 5.87 kWh/m2/day and June at 5.85 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Portland (Indiana) are December with an average of 2.62 kWh/m2/day, followed by January with an average of 3 kWh/m2/day and November at 3.44 kWh/m2/day. [1]
Solar Power Comparison: Portland vs. the U.S.
Solar Power Levels in Portland
The average monthly solar radiation level in Portland, IN, of 4.67 kilowatt hours per square meter per day (kWh/m2/day) is approximately 19% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 29% 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: Portland vs. the U.S.
Below is a month-by-month comparison of how average Portland 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 Portland, IN at this current time.
Solar Power Output in Portland
The Power of Solar in Portland, IN
Monthly AC solar system output averages for Portland (in). Month-by-month solar power, as ranked by AC output, in Portland. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Portland, IN
Portland (IN) has a average annual solar AC output value of 5374.94 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Portland is August with an average of 554.75 kWhac, followed by July at 545.33 kWhac and May at 535.12 kWhac. [2]
The three months that historically average the lowest average solar output levels in Portland (Indiana) are December with an average of 275.42 kWhac, followed by January with an average of 316.43 kWhac and November at 339.02 kWhac. [2]
Cost of Utilities in Portland
Portland Electricity Costs
Sorry, Portland residential electricity prices are currently unavailable.
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Solar Power Poll: Portland
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Portland Natural Gas Costs
Sorry, Indiana residential natural gas prices are currently unavailable.
The city of Portland, IN in Jay County has an approximate population of 6,223. [6]
Portland, IN Solar Energy
To learn more about solar energy and solar power Portland, IN, or for more solar-related resources for Portland, visit the U.S. Energy Information Administration.
Did you know?
Some tax incentives and rebate programs are designed to spur the use of solar energy. These vary by location.