See the chart below to see how different types of solar panel installations compare in Kahului.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.
Based on historical Kahului, HI data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in Kahului. [1]
Kahului has an average monthly Global Horizontal Irradiance (GHI) of 5.81 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% less than the average monthly Direct Normal Irradiance (DNI) of 5.93 kWh/m2/day. [1]
Solar installations in Kahului that are always titled at the latitude of Kahului (Average Tilt at Latitude or ATaL) average 6.13 kWh/m2/day, or about 6% greater than the average monthly GHI of 5.81 kWh/m2/day and approximately 3% greater than the average monthly DNI of 5.93 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 Kahului.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Kahului, HI has a average annual solar radiation value of 5.61 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Kahului is September with an average of 6.11 kWh/m2/day, followed by October at 6.09 kWh/m2/day and February at 5.83 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Kahului (Hawaii) are June with an average of 4.96 kWh/m2/day, followed by May with an average of 5.16 kWh/m2/day and July at 5.25 kWh/m2/day. [1]
The average monthly solar radiation level in Kahului, HI, of 5.61 kilowatt hours per square meter per day (kWh/m2/day) is approximately 43% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 15% 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 Kahului 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 Kahului, HI at this current time.
Monthly AC solar system output averages for Kahului (hi). Month-by-month solar power, as ranked by AC output, in Kahului. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Kahului (HI) has a average annual solar AC output value of 6329.09 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Kahului is October with an average of 584.53 kWhac, followed by September at 565.09 kWhac and August at 549.98 kWhac. [2]
The three months that historically average the lowest average solar output levels in Kahului (Hawaii) are June with an average of 453.58 kWhac, followed by May with an average of 494.51 kWhac and July at 499.72 kWhac. [2]
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The city of Kahului, HI in Maui County has an approximate population of 26,337. [6]
To learn more about solar energy and solar power Kahului, HI, or for more solar-related resources for Kahului, visit the U.S. Energy Information Administration.
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