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Solar Energy in Kapolei, HI

Solar Energy in Kapolei

The month of March has the highest historical solar radition values in Kapolei with an average of 5.52 kWh/m2/day. [More]

Solar Panels in Kapolei

Solar panels in Kapolei that will produce the maximum solar energy output. [More]

Sunrise & Sunset in Kapolei

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

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Kapolei, HI Solar Energy

Solar Power in Kapolei, HI

Solar Energy Data in Kapolei, HI

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

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


Solar Energy Analysis for Kapolei, HI

Solar Radiation Data in Kapolei

Sorry, it is not possible to complete our solar energy analysis for Kapolei at this time.

Historical solar power output data for Kapolei is not currently available.

Please check back later.

* 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 Kapolei

Solar Radiation Data in Kapolei, HI

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

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

Solar Radiation Analysis for Kapolei, HI

Solar Radiation Data in Kapolei

Kapolei, HI has a average annual solar radiation value of 5.25 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Kapolei is March with an average of 5.52 kWh/m2/day, followed by September at 5.44 kWh/m2/day and October at 5.44 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Kapolei (Hawaii) are June with an average of 4.83 kWh/m2/day, followed by May with an average of 4.87 kWh/m2/day and July at 5.01 kWh/m2/day. [1]

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

Solar Power Levels in Kapolei

The average monthly solar radiation level in Kapolei, HI, of 5.25 kilowatt hours per square meter per day (kWh/m2/day) is approximately 41% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 20% 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 Kapolei 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 Kapolei

Sunrise / Sunset in Kapolei

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

Best Months for Solar in Kapolei

  • Top Solar Power Months Historically [1]
    • Solar Radiation March (5.52 kWh/m2/day)
    • ATaL: ( kWh/m2/day)
    • DNI: ( kWh/m2/day)
    • GHI: ( kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Kapolei

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

Solar Power Output in Kapolei

The Power of Solar in Kapolei, HI

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

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

Solar Output Analysis for Kapolei, HI

Solar Radiation Data in Kapolei

Kapolei (HI) has a average annual solar AC output value of 5904.7 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Kapolei is March with an average of 530.19 kWhac, followed by October at 519.33 kWhac and January at 508.69 kWhac. [2]

The three months that historically average the lowest average solar output levels in Kapolei (Hawaii) are June with an average of 444.4 kWhac, followed by May with an average of 465.56 kWhac and February at 467.46 kWhac. [2]

Cost of Utilities in Kapolei

Kapolei Electricity Costs

Electricity prices (residential) in Kapolei 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: Kapolei

Vote now: Given all of the data and analysis provided for Kapolei, 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

Kapolei 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 Kapolei, HI [5]

Wed Dec 8
82°F
Light Rain
Min: 74°F
Max: 82°F
Fresh Breeze: 21 mps ENE
Precip.: Chance of Rain
Humidity: 66%
Cloud cover: 1%
Thu Dec 9
77°F
Few Clouds
Min: 73°F
Max: 77°F
Fresh Breeze: 20 mps ENE
Precip.: n/a
Humidity: 69%
Cloud cover: 16%
Fri Dec 10
76°F
Light Rain
Min: 74°F
Max: 77°F
Fresh Breeze: 20 mps E
Precip.: Chance of Rain
Humidity: 75%
Cloud cover: 62%
Sat Dec 11
76°F
Few Clouds
Min: 73°F
Max: 77°F
Fresh Breeze: 21 mps E
Precip.: n/a
Humidity: 74%
Cloud cover: 11%
Sun Dec 12
76°F
Light Rain
Min: 73°F
Max: 77°F
Fresh Breeze: 21 mps ENE
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 100%
Mon Dec 13
76°F
Light Rain
Min: 73°F
Max: 76°F
Strong breeze: 24 mps ENE
Precip.: Chance of Rain
Humidity: 75%
Cloud cover: 48%

More about Kapolei

About Kapolei

The city of Kapolei, HI in Honolulu County has an approximate population of 15,186. [6]

Kapolei Solar Power

Kapolei, HI Solar Energy

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

Did you know?

The solar energy that strikes the Earth in one hour could provide all of the Earth's energy needs for a complete year.

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References