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Solar Energy in Waipahu, HI

Solar Energy in Waipahu

The month of October has the highest historical solar radition values in Waipahu with an average of 5.8 kWh/m2/day. [More]

Solar Panels in Waipahu

Solar panels in Waipahu that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in Waipahu

The total length of the day in Waipahu, HI today (December 08, 2021) will be 10 hours and 52 minutes. [More]

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Waipahu, HI Solar Energy

Solar Power in Waipahu, HI

Solar Energy Data in Waipahu, HI

See the chart below to see how different types of solar panel installations compare in Waipahu.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day).
* See glossary & definitions below.


Solar Energy Analysis for Waipahu, HI

Solar Radiation Data in Waipahu

Based on historical Waipahu, 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 Waipahu. [1]

Waipahu has an average monthly Global Horizontal Irradiance (GHI) of 5.6 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 5.62 kWh/m2/day. [1]

Solar installations in Waipahu that are always titled at the latitude of Waipahu (Average Tilt at Latitude or ATaL) average 5.91 kWh/m2/day, or about 6% greater than the average monthly GHI of 5.6 kWh/m2/day and approximately 5% greater than the average monthly DNI of 5.62 kWh/m2/day. [1]

* See glossary & definitions below.

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 Waipahu

Solar Radiation Data in Waipahu, HI

See the chart below for monthly solar radiation levels in Waipahu.

* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)

Solar Radiation Analysis for Waipahu, HI

Solar Radiation Data in Waipahu

Waipahu, HI has a average annual solar radiation value of 5.37 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Waipahu is October with an average of 5.8 kWh/m2/day, followed by September at 5.76 kWh/m2/day and August at 5.59 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Waipahu (Hawaii) are June with an average of 4.88 kWh/m2/day, followed by May with an average of 4.89 kWh/m2/day and July at 5.08 kWh/m2/day. [1]

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Solar Power Comparison: Waipahu vs. the U.S.

Solar Power Levels in Waipahu

The average monthly solar radiation level in Waipahu, HI, of 5.37 kilowatt hours per square meter per day (kWh/m2/day) is approximately 44% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 19% less than the average level of 6.6 kWh/m2/day in a city with historically high levels (NV). [1]


→ Values listed as 0 (zero) are not available (N/A).

Solar Power: vs. the U.S.

Below is a month-by-month comparison of how average Waipahu 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).

Solar Data & Statistics for Waipahu

Sunrise / Sunset in Waipahu

  • Sunrise/Sunset for December 08, 2021 [2]
    • Sunrise: 6:58 am
    • Sunset: 5:50 pm
    • Length of Day: 10:52
Solar Energy Statistics for Waipahu

Best Months for Solar in Waipahu

  • Top Solar Power Months Historically [1]
    • Solar Radiation October (5.8 kWh/m2/day)
    • ATaL: August (6.41 kWh/m2/day)
    • DNI: August (6.51 kWh/m2/day)
    • GHI: June (6.86 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Waipahu

We do not currently have data on solar panel installations in the city of Waipahu, HI at this current time.

Solar Power Output in Waipahu

The Power of Solar in Waipahu, HI

Monthly AC solar system output averages for Waipahu (hi). Month-by-month solar power, as ranked by AC output, in Waipahu. [2]

* Amounts listed in kWhac (kilowatt hours (AC))

Solar Output Analysis for Waipahu, HI

Solar Radiation Data in Waipahu

Waipahu (HI) has a average annual solar AC output value of 6025.89 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Waipahu is October with an average of 556.57 kWhac, followed by August at 532.22 kWhac and March at 531.03 kWhac. [2]

The three months that historically average the lowest average solar output levels in Waipahu (Hawaii) are June with an average of 448.32 kWhac, followed by May with an average of 461.49 kWhac and February at 481.16 kWhac. [2]

Cost of Utilities in Waipahu

Waipahu Electricity Costs

Electricity prices (residential) in Waipahu averaged 34.30 cents per kilowatthour (¢/kWh) in September 2021, which was about 142% more than the overall U.S. average residential electricity rate of 14.19¢/kWh in September. [3]

Solar Power Poll: Waipahu

Vote now: Given all of the data and analysis provided for Waipahu, is solar power a good choice for residents of this city?

Yes, solar power is a great option  
No, solar power isn't a good option

Waipahu Natural Gas Costs

Natural gas prices (residential) in Hawaii averaged $46.53 per thousand cubic feet (Mcf) in September 2021, which was approximately 130% more than the overall U.S. average residential natural gas rate of $20.22 per Mcf in September. [4]

Weather Forecast for Waipahu, HI [5]

Wed Dec 8
81°F
Light Rain
Min: 72°F
Max: 81°F
Fresh Breeze: 18 mps ENE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 90%
Thu Dec 9
77°F
Few Clouds
Min: 72°F
Max: 77°F
Fresh Breeze: 18 mps E
Precip.: n/a
Humidity: 69%
Cloud cover: 15%
Fri Dec 10
76°F
Light Rain
Min: 73°F
Max: 76°F
Fresh Breeze: 18 mps E
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 65%
Sat Dec 11
76°F
Light Rain
Min: 72°F
Max: 77°F
Fresh Breeze: 19 mps E
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 12%
Sun Dec 12
75°F
Light Rain
Min: 72°F
Max: 76°F
Fresh Breeze: 19 mps ENE
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 100%
Mon Dec 13
76°F
Light Rain
Min: 72°F
Max: 76°F
Fresh Breeze: 21 mps ENE
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 38%

More about Waipahu

About Waipahu

The city of Waipahu, HI in Honolulu County has an approximate population of 38,216. [6]

Waipahu Solar Power

Waipahu, HI Solar Energy

To learn more about solar energy and solar power Waipahu, HI, or for more solar-related resources for Waipahu, visit the U.S. Energy Information Administration.

Did you know?

Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.

Other Cities in Hawaii

ZIP Codes in HI


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References