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Solar Energy in Wailuku, HI

Solar Energy in Wailuku

The month of January has the highest historical solar radition values in Wailuku with an average of 5.75 kWh/m2/day. [More]

Solar Panels in Wailuku

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

Sunrise & Sunset in Wailuku

The total length of the day in Wailuku, HI today (December 08, 2021) will be 10 hours and 54 minutes. [More]

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Wailuku, HI Solar Energy

Solar Power in Wailuku, HI

Solar Energy Data in Wailuku, HI

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

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


Solar Energy Analysis for Wailuku, HI

Solar Radiation Data in Wailuku

Based on historical Wailuku, 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 Wailuku. [1]

Wailuku has an average monthly Global Horizontal Irradiance (GHI) of 4.89 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 19% greater than the average monthly Direct Normal Irradiance (DNI) of 4.12 kWh/m2/day. [1]

Solar installations in Wailuku that are always titled at the latitude of Wailuku (Average Tilt at Latitude or ATaL) average 5.08 kWh/m2/day, or about 4% greater than the average monthly GHI of 4.89 kWh/m2/day and approximately 23% greater than the average monthly DNI of 4.12 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 Wailuku

Solar Radiation Data in Wailuku, HI

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

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

Solar Radiation Analysis for Wailuku, HI

Solar Radiation Data in Wailuku

Wailuku, HI has a average annual solar radiation value of 4.96 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Wailuku is January with an average of 5.75 kWh/m2/day, followed by November at 5.49 kWh/m2/day and September at 5.45 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Wailuku (Hawaii) are April with an average of 4.15 kWh/m2/day, followed by June with an average of 4.21 kWh/m2/day and May at 4.25 kWh/m2/day. [1]

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

Solar Power Levels in Wailuku

The average monthly solar radiation level in Wailuku, HI, of 4.96 kilowatt hours per square meter per day (kWh/m2/day) is approximately 33% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 25% 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 Wailuku 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 Wailuku

Sunrise / Sunset in Wailuku

  • Sunrise/Sunset for December 08, 2021 [2]
    • Sunrise: 6:51 am
    • Sunset: 5:45 pm
    • Length of Day: 10:54
Solar Energy Statistics for Wailuku

Best Months for Solar in Wailuku

  • Top Solar Power Months Historically [1]
    • Solar Radiation January (5.75 kWh/m2/day)
    • ATaL: August (5.85 kWh/m2/day)
    • DNI: August (5.28 kWh/m2/day)
    • GHI: July (6.13 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Wailuku

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

Solar Power Output in Wailuku

The Power of Solar in Wailuku, HI

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

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

Solar Output Analysis for Wailuku, HI

Solar Radiation Data in Wailuku

Wailuku (HI) has a average annual solar AC output value of 5595.27 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Wailuku is January with an average of 557.52 kWhac, followed by October at 511.21 kWhac and November at 507.53 kWhac. [2]

The three months that historically average the lowest average solar output levels in Wailuku (Hawaii) are April with an average of 389.18 kWhac, followed by June with an average of 389.4 kWhac and May at 404.59 kWhac. [2]

Cost of Utilities in Wailuku

Wailuku Electricity Costs

Electricity prices (residential) in Wailuku 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: Wailuku

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

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Wailuku 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 Wailuku, HI [5]

Wed Dec 8
78°F
Broken Clouds
Min: 74°F
Max: 78°F
Moderate breeze: 17 mps E
Precip.: n/a
Humidity: 75%
Cloud cover: 72%
Thu Dec 9
77°F
Broken Clouds
Min: 72°F
Max: 77°F
Moderate breeze: 14 mps E
Precip.: n/a
Humidity: 66%
Cloud cover: 55%
Fri Dec 10
76°F
Light Rain
Min: 72°F
Max: 77°F
Moderate breeze: 13 mps ENE
Precip.: Chance of Rain
Humidity: 69%
Cloud cover: 30%
Sat Dec 11
77°F
Light Rain
Min: 72°F
Max: 77°F
Moderate breeze: 14 mps ENE
Precip.: Chance of Rain
Humidity: 69%
Cloud cover: 51%
Sun Dec 12
76°F
Light Rain
Min: 73°F
Max: 76°F
Moderate breeze: 16 mps ENE
Precip.: Chance of Rain
Humidity: 70%
Cloud cover: 91%
Mon Dec 13
76°F
Light Rain
Min: 72°F
Max: 77°F
Moderate breeze: 17 mps ENE
Precip.: Chance of Rain
Humidity: 69%
Cloud cover: 11%

More about Wailuku

About Wailuku

The city of Wailuku, HI in Maui County has an approximate population of 15,313. [6]

Wailuku Solar Power

Wailuku, HI Solar Energy

To learn more about solar energy and solar power Wailuku, HI, or for more solar-related resources for Wailuku, 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.

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References