Based on historical Pasadena, CA data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Pasadena.[1]
Pasadena has an average monthly Global Horizontal Irradiance (GHI) of 5.26 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 11% less than the average monthly Direct Normal Irradiance (DNI) of 5.88 kWh/m2/day. [1]
Solar installations in Pasadena that are always titled at the latitude of Pasadena (Average Tilt at Latitude or ATaL) average 6.01 kWh/m2/day, or about 14% greater than the average monthly GHI of 5.26 kWh/m2/day and approximately 2% greater than the average monthly DNI of 5.88 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 Pasadena
Solar Radiation Data in Pasadena, CA
See the chart below for monthly solar radiation levels in Pasadena.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Pasadena, CA
Pasadena, CA has a average annual solar radiation value of 6.17 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Pasadena is August with an average of 7.16 kWh/m2/day, followed by September at 6.95 kWh/m2/day and July at 6.71 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Pasadena (California) are December with an average of 5.29 kWh/m2/day, followed by January with an average of 5.32 kWh/m2/day and February at 5.61 kWh/m2/day. [1]
Solar Power Comparison: Pasadena vs. the U.S.
Solar Power Levels in Pasadena
The average monthly solar radiation level in Pasadena, CA, of 6.17 kilowatt hours per square meter per day (kWh/m2/day) is approximately 57% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 7% 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: Pasadena vs. the U.S.
Below is a month-by-month comparison of how average Pasadena 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 Pasadena, CA at this current time.
Solar Power Output in Pasadena
The Power of Solar in Pasadena, CA
Monthly AC solar system output averages for Pasadena (ca). Month-by-month solar power, as ranked by AC output, in Pasadena. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Pasadena, CA
Pasadena (CA) has a average annual solar AC output value of 6758.03 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Pasadena is August with an average of 651.77 kWhac, followed by July at 615.36 kWhac and September at 610.04 kWhac. [2]
The three months that historically average the lowest average solar output levels in Pasadena (California) are February with an average of 481.87 kWhac, followed by January with an average of 502.64 kWhac and December at 502.89 kWhac. [2]
Cost of Utilities in Pasadena
Pasadena Electricity Costs
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Solar Power Poll: Pasadena
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Pasadena Natural Gas Costs
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Calm: 3 mps E
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Humidity: 70%
Cloud cover: 100%
More about Pasadena
About Pasadena
The city of Pasadena, CA in Los Angeles County has an approximate population of 137,122. [6]
Pasadena, CA Solar Energy
To learn more about solar energy and solar power Pasadena, CA, or for more solar-related resources for Pasadena, 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.