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Solar Energy in Mililani, HI

Solar Energy in Mililani

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

Solar Panels in Mililani

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

Sunrise & Sunset in Mililani

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

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Mililani, HI Solar Energy

Solar Power in Mililani, HI

Solar Energy Data in Mililani, HI

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

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


Solar Energy Analysis for Mililani, HI

Solar Radiation Data in Mililani

Based on historical Mililani, 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 Mililani. [1]

Mililani has an average monthly Global Horizontal Irradiance (GHI) of 5.07 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 12% greater than the average monthly Direct Normal Irradiance (DNI) of 4.52 kWh/m2/day. [1]

Solar installations in Mililani that are always titled at the latitude of Mililani (Average Tilt at Latitude or ATaL) average 5.31 kWh/m2/day, or about 5% greater than the average monthly GHI of 5.07 kWh/m2/day and approximately 17% greater than the average monthly DNI of 4.52 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 Mililani

Solar Radiation Data in Mililani, HI

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

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

Solar Radiation Analysis for Mililani, HI

Solar Radiation Data in Mililani

Mililani, HI has a average annual solar radiation value of 5.12 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in Mililani is September with an average of 5.75 kWh/m2/day, followed by October at 5.51 kWh/m2/day and August at 5.37 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in Mililani (Hawaii) are June with an average of 4.7 kWh/m2/day, followed by May with an average of 4.72 kWh/m2/day and December at 4.85 kWh/m2/day. [1]

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

Solar Power Levels in Mililani

The average monthly solar radiation level in Mililani, HI, of 5.12 kilowatt hours per square meter per day (kWh/m2/day) is approximately 37% greater than the average level of 3.73 kWh/m2/day in a city with historically low levels (WA) and is approximately 22% 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 Mililani 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 Mililani

Sunrise / Sunset in Mililani

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

Best Months for Solar in Mililani

  • Top Solar Power Months Historically [1]
    • Solar Radiation September (5.75 kWh/m2/day)
    • ATaL: August (5.99 kWh/m2/day)
    • DNI: August (5.55 kWh/m2/day)
    • GHI: July (6.32 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in Mililani

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

Solar Power Output in Mililani

The Power of Solar in Mililani, HI

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

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

Solar Output Analysis for Mililani, HI

Solar Radiation Data in Mililani

Mililani (HI) has a average annual solar AC output value of 5735.92 kilowatt hours (AC). [2]

The month with the highest historical solar power output in Mililani is September with an average of 525.52 kWhac, followed by October at 520.87 kWhac and August at 509.85 kWhac. [2]

The three months that historically average the lowest average solar output levels in Mililani (Hawaii) are June with an average of 436.57 kWhac, followed by May with an average of 448.78 kWhac and February at 453.93 kWhac. [2]

Cost of Utilities in Mililani

Mililani Electricity Costs

Electricity prices (residential) in Mililani 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: Mililani

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

Mililani 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 Mililani, HI [5]

Wed Dec 8
77°F
Light Rain
Min: 70°F
Max: 78°F
Moderate breeze: 16 mps E
Precip.: Chance of Rain
Humidity: 72%
Cloud cover: 23%
Thu Dec 9
75°F
Light Rain
Min: 70°F
Max: 75°F
Moderate breeze: 16 mps E
Precip.: Chance of Rain
Humidity: 69%
Cloud cover: 16%
Fri Dec 10
74°F
Light Rain
Min: 70°F
Max: 75°F
Moderate breeze: 16 mps E
Precip.: Chance of Rain
Humidity: 77%
Cloud cover: 74%
Sat Dec 11
75°F
Light Rain
Min: 70°F
Max: 75°F
Fresh Breeze: 17 mps E
Precip.: Chance of Rain
Humidity: 72%
Cloud cover: 13%
Sun Dec 12
73°F
Light Rain
Min: 70°F
Max: 75°F
Moderate breeze: 17 mps ENE
Precip.: Chance of Rain
Humidity: 77%
Cloud cover: 100%
Mon Dec 13
74°F
Light Rain
Min: 70°F
Max: 74°F
Fresh Breeze: 18 mps ENE
Precip.: Chance of Rain
Humidity: 76%
Cloud cover: 26%

More about Mililani

About Mililani

The city of Mililani, HI in Honolulu County has an approximate population of 27,629. [6]

Mililani Solar Power

Mililani, HI Solar Energy

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

Did you know?

Solar cells convert sunlight into electricity through a physical process known as the photovoltaic effect.

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References