See the chart below to see how different types of solar panel installations compare in Saint Johns.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Saint Johns, AZ data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Saint Johns. [1]
Saint Johns has an average monthly Global Horizontal Irradiance (GHI) of 5.56 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 27% less than the average monthly Direct Normal Irradiance (DNI) of 7.65 kWh/m2/day. [1]
Solar installations in Saint Johns that are always titled at the latitude of Saint Johns (Average Tilt at Latitude or ATaL) average 6.52 kWh/m2/day, or about 17% greater than the average monthly GHI of 5.56 kWh/m2/day and approximately 15% less than the average monthly DNI of 7.65 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 Saint Johns.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Saint Johns, AZ has a average annual solar radiation value of 6.49 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Saint Johns is April with an average of 7.3 kWh/m2/day, followed by March at 7.04 kWh/m2/day and May at 6.99 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Saint Johns (Arizona) are December with an average of 5.43 kWh/m2/day, followed by January with an average of 5.66 kWh/m2/day and August at 6.1 kWh/m2/day. [1]
The average monthly solar radiation level in Saint Johns, AZ, of 6.49 kilowatt hours per square meter per day (kWh/m2/day) is approximately 65% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 2% 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 Saint Johns 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 Saint Johns, AZ at this current time.
Monthly AC solar system output averages for Saint Johns (az). Month-by-month solar power, as ranked by AC output, in Saint Johns. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Saint Johns (AZ) has a average annual solar AC output value of 7274.44 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Saint Johns is April with an average of 677.52 kWhac, followed by March at 677.25 kWhac and May at 663.02 kWhac. [2]
The three months that historically average the lowest average solar output levels in Saint Johns (Arizona) are December with an average of 541.47 kWhac, followed by August with an average of 555.9 kWhac and January at 560.99 kWhac. [2]
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Vote now: Given all of the data and analysis provided for Saint Johns, is solar power a good choice for residents of this city?
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The city of Saint Johns, AZ in Apache County has an approximate population of 3,480. [6]
To learn more about solar energy and solar power Saint Johns, AZ, or for more solar-related resources for Saint Johns, visit the U.S. Energy Information Administration.
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