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Solar Energy in Kapaa, HI

Solar Energy in Kapaa

Sorry, historical solar radition values for Kapaa are currently unavailable, please check back later.

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 (June 03, 2020) will be 13 hours and 25 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]

* 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 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

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

Historical solar radiation data for Kapaa is not currently available.

Please check back later.

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

Solar Power Levels in Kapaa

Sorry, solar radiation data for Hawaii is not currently available. Please try again later.

Solar Power: 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 June 03, 2020 [2]
    • Sunrise: 3:53 pm
    • Sunset: 5:18 am
    • Solar Noon: 10:35 pm
    • Length of Day: 13:25
Solar Energy Statistics for Kapaa

Best Months for Solar in Kapaa

  • Top Solar Power Months Historically [1]
    • Solar Radiation n/a
    • 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.

However, Kapaa is in Kauai County and Kauai County has at least 0 solar insallations right now. [1]

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

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

Historical solar radiation data for Kapaa is not currently available.

Please check back later.

Cost of Utilities in Kapaa

Kapaa Electricity Costs

Electricity prices (residential) in Kapaa averaged 33.10 cents per kilowatthour (¢/kWh) in March 2020, which was about 153% more than the overall U.S. average residential electricity rate of 13.08¢/kWh in March. [3]

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?

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

Kapaa Natural Gas Costs

Natural gas prices (residential) in Hawaii averaged $43.98 per thousand cubic feet (Mcf) in February 2020, which was approximately 346% more than the overall U.S. average residential natural gas rate of $9.86 per Mcf in February. [4]

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Weather Forecast for Kapaa, HI [5]

Wed Jun 3
82°F
Light Rain
Min: 77°F
Max: 82°F
Gentle Breeze: 10 mps E
Precip.: Chance of Rain
Humidity: 78%
Cloud cover: 40%
Thu Jun 4
78°F
Light Rain
Min: 75°F
Max: 79°F
Moderate breeze: 12 mps E
Precip.: Chance of Rain
Humidity: 70%
Cloud cover: 53%
Fri Jun 5
77°F
Light Rain
Min: 75°F
Max: 78°F
Moderate breeze: 13 mps E
Precip.: Chance of Rain
Humidity: 71%
Cloud cover: 87%
Sat Jun 6
78°F
Moderate Rain
Min: 74°F
Max: 78°F
Moderate breeze: 15 mps E
Precip.: Chance of Rain
Humidity: 72%
Cloud cover: 34%
Sun Jun 7
77°F
Moderate Rain
Min: 75°F
Max: 77°F
Moderate breeze: 12 mps E
Precip.: Chance of Rain
Humidity: 74%
Cloud cover: 24%
Mon Jun 8
78°F
Light Rain
Min: 74°F
Max: 78°F
Gentle Breeze: 10 mps E
Precip.: Chance of Rain
Humidity: 73%
Cloud cover: 14%

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?

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

Other Cities in Hawaii

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References