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Solar Energy in Kapaa, HI

Solar Energy in Kapaa

The month of September has the highest historical solar radition values in Kapaa with an average of 5.07 kWh/m2/day. [More]

Solar Panels in Kapaa

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

Sunrise & Sunset in Kapaa

The total length of the day in Kapaa, HI today (February 07, 2023) will be 11 hours and 18 minutes. [More]

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Kapaa, HI Solar Energy

Solar Power in Kapaa, HI

Solar Energy Data in Kapaa, HI

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

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


Solar Energy Analysis for Kapaa, HI

Solar Radiation Data in Kapaa

Based on historical Kapaa, 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 Kapaa. [1]

Kapaa has an average monthly Global Horizontal Irradiance (GHI) of 4.96 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 22% greater than the average monthly Direct Normal Irradiance (DNI) of 4.08 kWh/m2/day. [1]

Solar installations in Kapaa that are always titled at the latitude of Kapaa (Average Tilt at Latitude or ATaL) average 5.19 kWh/m2/day, or about 5% greater than the average monthly GHI of 4.96 kWh/m2/day and approximately 27% greater than the average monthly DNI of 4.08 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 Kapaa

Solar Radiation Data in Kapaa, HI

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

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

Solar Radiation Analysis for Kapaa, HI

Solar Radiation Data in Kapaa

Kapaa, HI has a average annual solar radiation value of 4.66 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Kapaa is September with an average of 5.07 kWh/m2/day, followed by August at 4.96 kWh/m2/day and October at 4.76 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Kapaa (Hawaii) are November with an average of 4.42 kWh/m2/day, followed by June with an average of 4.45 kWh/m2/day and December at 4.48 kWh/m2/day. [1]

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

Solar Power Levels in Kapaa

The average monthly solar radiation level in Kapaa, HI, of 4.66 kilowatt hours per square meter per day (kWh/m2/day) is approximately 19% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 30% 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: Kapaa vs. the U.S.

Below is a month-by-month comparison of how average Kapaa 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 Kapaa

Sunrise / Sunset in Kapaa

  • Sunrise/Sunset for February 07, 2023 [2]
    • Sunrise: 7:12 am
    • Sunset: 6:30 pm
    • Length of Day: 11:18
Solar Energy Statistics for Kapaa

Best Months for Solar in Kapaa

  • Top Solar Power Months Historically [1]
    • Solar Radiation September (5.07 kWh/m2/day)
    • ATaL: September (5.91 kWh/m2/day)
    • DNI: September (5.06 kWh/m2/day)
    • GHI: July (6.33 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Kapaa

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

Solar Power Output in Kapaa

The Power of Solar in Kapaa, HI

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

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

Solar Output Analysis for Kapaa, HI

Solar Radiation Data in Kapaa

Kapaa (HI) has a average annual solar AC output value of 5286.09 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Kapaa is August with an average of 475.01 kWhac, followed by September at 468.53 kWhac and October at 459.02 kWhac. [2]

The three months that historically average the lowest average solar output levels in Kapaa (Hawaii) are February with an average of 410.5 kWhac, followed by November with an average of 410.61 kWhac and June at 412.79 kWhac. [2]

Cost of Utilities in Kapaa

Kapaa Electricity Costs

Sorry, Kapaa residential electricity prices are currently unavailable.

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Solar Power Poll: Kapaa

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

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Kapaa Natural Gas Costs

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Weather Forecast for Kapaa, HI [5]

Tue Feb 7
76°F
Light Rain
Min: 72°F
Max: 76°F
Moderate breeze: 15 mps E
Precip.: Chance of Rain
Humidity: 85%
Cloud cover: 75%
Wed Feb 8
73°F
Light Rain
Min: 71°F
Max: 73°F
Fresh Breeze: 21 mps ENE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 89%
Thu Feb 9
73°F
Light Rain
Min: 71°F
Max: 73°F
Strong breeze: 24 mps ENE
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 93%
Fri Feb 10
71°F
Light Rain
Min: 71°F
Max: 72°F
Strong breeze: 25 mps E
Precip.: Chance of Rain
Humidity: 77%
Cloud cover: 95%
Sat Feb 11
73°F
Light Rain
Min: 71°F
Max: 74°F
Fresh Breeze: 19 mps E
Precip.: Chance of Rain
Humidity: 70%
Cloud cover: 18%
Sun Feb 12
73°F
Light Rain
Min: 70°F
Max: 73°F
Fresh Breeze: 20 mps ENE
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 10%

More about Kapaa

About Kapaa

The city of Kapaa, HI in Kauai County has an approximate population of 10,699. [6]

Kapaa Solar Power

Kapaa, HI Solar Energy

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

Did you know?

Some tax incentives and rebate programs are designed to spur the use of solar energy. These vary by location.

Other Cities in Hawaii

ZIP Codes in HI


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References

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