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Solar Power in 77340 (Huntsville, TX)

Solar Energy in 77340

The month of August has the highest historical solar radition values in 77340 with an average of 5.96 kWh/m2/day. [More]

Solar Panels in 77340

Solar panels in 77340 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 77340

The total length of the day in 77340 (Huntsville, TX) today (April 25, 2025) will be 13 hours and 16 minutes. [More]

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77340 Solar Energy

Solar Energy in 77340 (Huntsville, TX)

Solar Energy Data for 77340

See the chart below to see how different types of solar panel installations compare in 77340.

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


Solar Energy Analysis for 77340

Solar Radiation Data in 77340

Based on historical 77340 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 77340. [1]

The region associated with 77340 has an average monthly Global Horizontal Irradiance (GHI) of 4.61 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 4% greater than the average monthly Direct Normal Irradiance (DNI) of 4.42 kWh/m2/day. [1]

Solar installations in 77340 that are always titled at the latitude of Huntsville (Average Tilt at Latitude or ATaL) average 5.07 kWh/m2/day, or about 10% greater than the average monthly GHI of 4.61 kWh/m2/day and approximately 15% greater than the average monthly DNI of 4.42 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 77340

Solar Radiation Data in 77340

See the chart below for monthly solar radiation levels in 77340.

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

Solar Radiation Analysis for 77340

Solar Radiation Data in 77340

The region associated with 77340 has a average annual solar radiation value of 5.27 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in 77340 is August with an average of 5.96 kWh/m2/day, followed by October at 5.94 kWh/m2/day and September at 5.92 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in 77340 are December with an average of 3.95 kWh/m2/day, followed by January with an average of 4.29 kWh/m2/day and March at 5.02 kWh/m2/day. [1]

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Solar Power Comparison: 77340 vs. the U.S.

Solar Power Levels in 77340

The average monthly solar radiation level in 77340, of 5.27 kilowatt hours per square meter per day (kWh/m2/day) is approximately 34% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 20% 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: 77340 vs. the U.S.

Below is a month-by-month comparison of how average 77340 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 77340

Sunrise / Sunset in 77340

  • Sunrise/Sunset for April 25, 2025 [2]
    • Sunrise: 6:42 am
    • Sunset: 7:58 pm
    • Length of Day: 13:16
Solar Energy Statistics for 77340

Best Months for Solar in 77340

  • Top Solar Power Months Historically [1]
    • Solar Radiation August (5.96 kWh/m2/day)
    • ATaL: August (6.01 kWh/m2/day)
    • DNI: August (5.31 kWh/m2/day)
    • GHI: July (6.39 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 77340

We do not have data on solar panel installations in ZIP Code 77340 at the current time.

Solar Power Output in 77340

The Power of Solar in 77340

Monthly AC solar system output averages for 77340. Month-by-month solar power, as ranked by AC output, in 77340. [2]

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

Solar Output Analysis for 77340

Solar Radiation Data in 77340

77340 has a average annual solar AC output value of 5702.57 kilowatt hours (AC). [2]

The month with the highest historical solar power output in 77340 is October with an average of 545.49 kWhac, followed by August at 529.63 kWhac and September at 509.54 kWhac. [2]

The three months that historically average the lowest average solar output levels in 77340 are December with an average of 375.95 kWhac, followed by January with an average of 412.43 kWhac and February at 444.55 kWhac. [2]

Weather Forecast for 77340 [5]

Fri Apr 25
83°F
Few Clouds
Min: 66°F
Max: 85°F
Moderate breeze: 13 mps SE
Precip.: n/a
Humidity: 71%
Cloud cover: 21%
Sat Apr 26
85°F
Sky Is Clear
Min: 68°F
Max: 89°F
Moderate breeze: 13 mps SE
Precip.: n/a
Humidity: 34%
Cloud cover: 7%
Sun Apr 27
88°F
Scattered Clouds
Min: 67°F
Max: 92°F
Moderate breeze: 13 mps SSE
Precip.: n/a
Humidity: 41%
Cloud cover: 36%
Mon Apr 28
85°F
Overcast Clouds
Min: 67°F
Max: 88°F
Moderate breeze: 14 mps SSE
Precip.: n/a
Humidity: 47%
Cloud cover: 100%
Tue Apr 29
81°F
Overcast Clouds
Min: 69°F
Max: 84°F
Gentle Breeze: 12 mps S
Precip.: n/a
Humidity: 59%
Cloud cover: 100%
Wed Apr 30
84°F
Overcast Clouds
Min: 68°F
Max: 89°F
Moderate breeze: 17 mps S
Precip.: n/a
Humidity: 47%
Cloud cover: 100%

More about 77340

About 77340

The ZIP code 77340 is associated with the city of Huntsville in Walker County in Texas.

77340 Solar Power

77340 Solar Energy & Power

To learn more about solar energy and solar power in 77340, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.

Did you know?

About half of the sun's energy is absorbed by the Earth's surface; about 30 percent is reflected back from the surface.

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References

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