See the chart below to see how different types of solar panel installations compare in El Cajon.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical El Cajon, CA data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in El Cajon. [1]
El Cajon has an average monthly Global Horizontal Irradiance (GHI) of 5.43 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 14% less than the average monthly Direct Normal Irradiance (DNI) of 6.28 kWh/m2/day. [1]
Solar installations in El Cajon that are always titled at the latitude of El Cajon (Average Tilt at Latitude or ATaL) average 6.19 kWh/m2/day, or about 14% greater than the average monthly GHI of 5.43 kWh/m2/day and approximately 1% less than the average monthly DNI of 6.28 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 El Cajon.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
El Cajon, CA has a average annual solar radiation value of 6.28 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in El Cajon is August with an average of 7.02 kWh/m2/day, followed by September at 7.02 kWh/m2/day and March at 6.62 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in El Cajon (California) are January with an average of 5.45 kWh/m2/day, followed by December with an average of 5.68 kWh/m2/day and February at 5.81 kWh/m2/day. [1]
The average monthly solar radiation level in El Cajon, CA, of 6.28 kilowatt hours per square meter per day (kWh/m2/day) is approximately 60% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 5% 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 El Cajon 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 El Cajon, CA at this current time.
Monthly AC solar system output averages for El Cajon (ca). Month-by-month solar power, as ranked by AC output, in El Cajon. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
El Cajon (CA) has a average annual solar AC output value of 6938.3 kilowatt hours (AC). [2]
The month with the highest historical solar power output in El Cajon is August with an average of 639.97 kWhac, followed by March at 629.96 kWhac and September at 615.04 kWhac. [2]
The three months that historically average the lowest average solar output levels in El Cajon (California) are February with an average of 503.24 kWhac, followed by January with an average of 525.57 kWhac and November at 534.84 kWhac. [2]
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The city of El Cajon, CA in San Diego County has an approximate population of 99,478. [6]
To learn more about solar energy and solar power El Cajon, CA, or for more solar-related resources for El Cajon, visit the U.S. Energy Information Administration.
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