Based on historical Lahaina, HI data, solar panels that always track the sun throughout the day will produce the maximum solar energy output in Lahaina.[1]
Lahaina has an average monthly Global Horizontal Irradiance (GHI) of 6.08 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 11% less than the average monthly Direct Normal Irradiance (DNI) of 6.81 kWh/m2/day. [1]
Solar installations in Lahaina that are always titled at the latitude of Lahaina (Average Tilt at Latitude or ATaL) average 6.43 kWh/m2/day, or about 6% greater than the average monthly GHI of 6.08 kWh/m2/day and approximately 6% less than the average monthly DNI of 6.81 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 Lahaina
Solar Radiation Data in Lahaina, HI
See the chart below for monthly solar radiation levels in Lahaina.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for Lahaina, HI
Lahaina, HI has a average annual solar radiation value of 5.87 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in Lahaina is October with an average of 6.43 kWh/m2/day, followed by February at 6.32 kWh/m2/day and September at 6.32 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in Lahaina (Hawaii) are June with an average of 4.86 kWh/m2/day, followed by July with an average of 5.2 kWh/m2/day and May at 5.21 kWh/m2/day. [1]
Solar Power Comparison: Lahaina vs. the U.S.
Solar Power Levels in Lahaina
The average monthly solar radiation level in Lahaina, HI, of 5.87 kilowatt hours per square meter per day (kWh/m2/day) is approximately 49% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 11% 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: Lahaina vs. the U.S.
Below is a month-by-month comparison of how average Lahaina 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 Lahaina, HI at this current time.
Solar Power Output in Lahaina
The Power of Solar in Lahaina, HI
Monthly AC solar system output averages for Lahaina (hi). Month-by-month solar power, as ranked by AC output, in Lahaina. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for Lahaina, HI
Lahaina (HI) has a average annual solar AC output value of 6578.69 kilowatt hours (AC). [2]
The month with the highest historical solar power output in Lahaina is October with an average of 615.78 kWhac, followed by January at 594.11 kWhac and December at 585.16 kWhac. [2]
The three months that historically average the lowest average solar output levels in Lahaina (Hawaii) are June with an average of 444.07 kWhac, followed by July with an average of 492.66 kWhac and May at 496.49 kWhac. [2]
Cost of Utilities in Lahaina
Lahaina Electricity Costs
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Solar Power Poll: Lahaina
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Lahaina Natural Gas Costs
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More about Lahaina
About Lahaina
The city of Lahaina, HI in Maui County has an approximate population of 11,704. [6]
Lahaina, HI Solar Energy
To learn more about solar energy and solar power Lahaina, HI, or for more solar-related resources for Lahaina, visit the U.S. Energy Information Administration.
Did you know?
About half of the sun's energy is absorbed by the Earth's surface; about 30 percent is reflected back from the surface.