See the chart below to see how different types of solar panel installations compare in Cupertino.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Cupertino, 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 Cupertino. [1]
Cupertino has an average monthly Global Horizontal Irradiance (GHI) of 5.11 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 11% less than the average monthly Direct Normal Irradiance (DNI) of 5.75 kWh/m2/day. [1]
Solar installations in Cupertino that are always titled at the latitude of Cupertino (Average Tilt at Latitude or ATaL) average 5.84 kWh/m2/day, or about 14% greater than the average monthly GHI of 5.11 kWh/m2/day and approximately 2% greater than the average monthly DNI of 5.75 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 Cupertino.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Cupertino, CA has a average annual solar radiation value of 5.94 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Cupertino is August with an average of 7.28 kWh/m2/day, followed by July at 7.23 kWh/m2/day and September at 7.05 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Cupertino (California) are December with an average of 4.04 kWh/m2/day, followed by January with an average of 4.11 kWh/m2/day and February at 4.63 kWh/m2/day. [1]
The average monthly solar radiation level in Cupertino, CA, of 5.94 kilowatt hours per square meter per day (kWh/m2/day) is approximately 51% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 10% 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 Cupertino 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 Cupertino, CA at this current time.
Monthly AC solar system output averages for Cupertino (ca). Month-by-month solar power, as ranked by AC output, in Cupertino. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Cupertino (CA) has a average annual solar AC output value of 6638.89 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Cupertino is July with an average of 680.29 kWhac, followed by August at 677.21 kWhac and May at 636.48 kWhac. [2]
The three months that historically average the lowest average solar output levels in Cupertino (California) are December with an average of 394.77 kWhac, followed by January with an average of 399.31 kWhac and February at 411.6 kWhac. [2]
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The city of Cupertino, CA in Santa Clara County has an approximate population of 58,302. [6]
To learn more about solar energy and solar power Cupertino, CA, or for more solar-related resources for Cupertino, visit the U.S. Energy Information Administration.
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