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Solar Energy in Honolulu, HI

Solar Energy in Honolulu

The month of September has the highest historical solar radition values in Honolulu with an average of 6.41 kWh/m2/day. [More]

Solar Panels in Honolulu

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

Sunrise & Sunset in Honolulu

The total length of the day in Honolulu, HI today (December 14, 2017) will be 10 hours and 50 minutes. [More]

Honolulu, HI Solar Energy

Solar Power in Honolulu, HI

Solar Energy Data in Honolulu, HI

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

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


Solar Energy Analysis for Honolulu, HI

Solar Radiation Data in Honolulu

Based on historical Honolulu, 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 Honolulu. [1]

Honolulu has an average monthly Global Horizontal Irradiance (GHI) of 5.67 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 5.68 kWh/m2/day. [1]

Solar installations in Honolulu that are always titled at the latitude of Honolulu (Average Tilt at Latitude or ATaL) average 5.97 kWh/m2/day, or about 5% greater than the average monthly GHI of 5.67 kWh/m2/day and approximately 5% greater than the average monthly DNI of 5.68 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.

Compare Solar Quotes
Compare Solar Quotes

Solar Radiation Levels in Honolulu

Solar Radiation Data in Honolulu, HI

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

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

Solar Radiation Analysis for Honolulu, HI

Solar Radiation Data in Honolulu

Honolulu, HI has a average annual solar radiation value of 5.72 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Honolulu is September with an average of 6.41 kWh/m2/day, followed by August at 6.25 kWh/m2/day and July at 6.02 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Honolulu (Hawaii) are December with an average of 4.92 kWh/m2/day, followed by January with an average of 5.01 kWh/m2/day and November at 5.16 kWh/m2/day. [1]

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

Solar Power Levels in Honolulu

The average monthly solar radiation level in Honolulu, HI, of 5.72 kilowatt hours per square meter per day (kWh/m2/day) is approximately 53% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 13% 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 Honolulu 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).

Compare Solar Quotes
Compare Solar Quotes

Solar Data & Statistics for Honolulu

Sunrise / Sunset in Honolulu

  • Sunrise/Sunset for December 14, 2017 [2]
    • Sunrise: 5:01 pm
    • Sunset: 3:51 am
    • Solar Noon: 10:26 pm
    • Length of Day: 10:50
Solar Energy Statistics for Honolulu

Best Months for Solar in Honolulu

  • Top Solar Power Months Historically [1]
    • Solar Radiation September (6.41 kWh/m2/day)
    • ATaL: August (6.62 kWh/m2/day)
    • DNI: August (6.87 kWh/m2/day)
    • GHI: June (7.1 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Honolulu

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

However, Honolulu is in Honolulu County and Honolulu County has at least 856 solar insallations right now. [1]

Solar Power Output in Honolulu

The Power of Solar in Honolulu, HI

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

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

Solar Output Analysis for Honolulu, HI

Solar Radiation Data in Honolulu

Honolulu (HI) has a average annual solar AC output value of 6434.42 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Honolulu is August with an average of 592.44 kWhac, followed by September at 587.34 kWhac and May at 572.97 kWhac. [2]

The three months that historically average the lowest average solar output levels in Honolulu (Hawaii) are December with an average of 472.25 kWhac, followed by November with an average of 479.75 kWhac and January at 480.97 kWhac. [2]

Cost of Utilities in Honolulu

Honolulu Electricity Costs

Electricity prices (residential) in Honolulu averaged 29.03 cents per kilowatthour (¢/kWh) in September 2017, which was about 118% more than the overall U.S. average residential electricity rate of 13.30¢/kWh in September. [3]

Solar Power Poll: Honolulu

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

Honolulu Natural Gas Costs

Natural gas prices (residential) in Hawaii averaged $39.98 per thousand cubic feet (Mcf) in September 2017, which was approximately 135% more than the overall U.S. average residential natural gas rate of $17.01 per Mcf in September. [4]

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Solar Businesses in Honolulu

Solar Energy Contractors in Honolulu

Contractors & builders that specialize in solar panel installations in or near Honolulu, HI.

Sorry, no local solar energy contractors found.

Our search for solar contractors companies located in Honolulu produced no matches.

Solar Energy Equipment in Honolulu

Businesses that sell solar energy equipment and/or solar parts in or near Honolulu, HI.

Sorry, no local business selling solar equipment were found.

Our search for companies selling solar parts located in Honolulu produced no matches.

Energy Conservation Consultants in Honolulu

Energy conservation specialists that offer consulting services in or near Honolulu, HI.

Sorry, no local energy conservation specialists were found.

Our search for energy conservation specialists located in Honolulu produced no matches.

Weather Forecast for Honolulu, HI [5]

Wed Dec 13
68°F
Broken Clouds
Min: 68°F
Max: 68°F
Strong breeze: 12 mps NE
Precip.: n/a
Humidity: 72%
Cloud cover: 68%
Thu Dec 14
74°F
Sky Is Clear
Min: 67°F
Max: 74°F
High wind, near gale: 16 mps NE
Precip.: n/a
Humidity: 56%
Cloud cover: 8%
Fri Dec 15
74°F
Broken Clouds
Min: 68°F
Max: 75°F
Strong breeze: 13 mps NE
Precip.: n/a
Humidity: 59%
Cloud cover: 68%
Sat Dec 16
74°F
Light Rain
Min: 65°F
Max: 74°F
Gentle Breeze: 3 mps NW
Precip.: Chance of Rain
Humidity: 75%
Cloud cover: 88%
Sun Dec 17
77°F
Light Rain
Min: 73°F
Max: 77°F
Gentle Breeze: 3 mps SE
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 27%
Mon Dec 18
77°F
Light Rain
Min: 74°F
Max: 77°F
Calm: 1 mps S
Precip.: Chance of Rain
Humidity: 0%
Cloud cover: 25%

More about Honolulu

About Honolulu

The city of Honolulu, HI in Honolulu County has an approximate population of 337,256. [6]

Honolulu Solar Power

Honolulu, HI Solar Energy

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

Did you know?

It takes light about 8 minutes, 19 seconds to travel the 93,000,000 miles from the sun's surface to us on Earth.

Other Cities in Hawaii

ZIP Codes in HI


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References