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Solar Power in 75604 (Longview, TX)

Solar Energy in 75604

The month of August has the highest historical solar radition values in 75604 with an average of 6.16 kWh/m2/day. [More]

Solar Panels in 75604

Solar panels in 75604 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 75604

The total length of the day in 75604 (Longview, TX) today (July 17, 2025) will be 14 hours and 6 minutes. [More]

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75604 Solar Energy

Solar Energy in 75604 (Longview, TX)

Solar Energy Data for 75604

See the chart below to see how different types of solar panel installations compare in 75604.

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


Solar Energy Analysis for 75604

Solar Radiation Data in 75604

Based on historical 75604 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 75604. [1]

The region associated with 75604 has an average monthly Global Horizontal Irradiance (GHI) of 4.58 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 0% less than the average monthly Direct Normal Irradiance (DNI) of 4.6 kWh/m2/day. [1]

Solar installations in 75604 that are always titled at the latitude of Longview (Average Tilt at Latitude or ATaL) average 5.09 kWh/m2/day, or about 11% greater than the average monthly GHI of 4.58 kWh/m2/day and approximately 11% greater than the average monthly DNI of 4.6 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 75604

Solar Radiation Data in 75604

See the chart below for monthly solar radiation levels in 75604.

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

Solar Radiation Analysis for 75604

Solar Radiation Data in 75604

The region associated with 75604 has a average annual solar radiation value of 5.36 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in 75604 is August with an average of 6.16 kWh/m2/day, followed by September at 5.98 kWh/m2/day and July at 5.89 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in 75604 are December with an average of 4.13 kWh/m2/day, followed by January with an average of 4.48 kWh/m2/day and February at 4.63 kWh/m2/day. [1]

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Solar Power Comparison: 75604 vs. the U.S.

Solar Power Levels in 75604

The average monthly solar radiation level in 75604, of 5.36 kilowatt hours per square meter per day (kWh/m2/day) is approximately 36% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 19% 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: 75604 vs. the U.S.

Below is a month-by-month comparison of how average 75604 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 75604

Sunrise / Sunset in 75604

  • Sunrise/Sunset for July 17, 2025 [2]
    • Sunrise: 6:22 am
    • Sunset: 8:28 pm
    • Length of Day: 14:6
Solar Energy Statistics for 75604

Best Months for Solar in 75604

  • Top Solar Power Months Historically [1]
    • Solar Radiation August (6.16 kWh/m2/day)
    • ATaL: August (6.21 kWh/m2/day)
    • DNI: July (5.85 kWh/m2/day)
    • GHI: July (6.62 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 75604

We do not have data on solar panel installations in ZIP Code 75604 at the current time.

Solar Power Output in 75604

The Power of Solar in 75604

Monthly AC solar system output averages for 75604. Month-by-month solar power, as ranked by AC output, in 75604. [2]

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

Solar Output Analysis for 75604

Solar Radiation Data in 75604

75604 has a average annual solar AC output value of 5897.44 kilowatt hours (AC). [2]

The month with the highest historical solar power output in 75604 is August with an average of 553.94 kWhac, followed by October at 535.27 kWhac and July at 528.3 kWhac. [2]

The three months that historically average the lowest average solar output levels in 75604 are December with an average of 402.34 kWhac, followed by February with an average of 405.52 kWhac and January at 437.82 kWhac. [2]

Weather Forecast for 75604 [5]

Thu Jul 17
92°F
Overcast Clouds
Min: 75°F
Max: 94°F
Light breeze: 7 mps SSW
Precip.: n/a
Humidity: 52%
Cloud cover: 88%
Fri Jul 18
90°F
Light Rain
Min: 73°F
Max: 95°F
Gentle Breeze: 12 mps SSW
Precip.: Chance of Rain
Humidity: 40%
Cloud cover: 30%
Sat Jul 19
91°F
Light Rain
Min: 72°F
Max: 91°F
Gentle Breeze: 11 mps SSW
Precip.: Chance of Rain
Humidity: 50%
Cloud cover: 65%
Sun Jul 20
94°F
Sky Is Clear
Min: 76°F
Max: 97°F
Gentle Breeze: 12 mps SSW
Precip.: n/a
Humidity: 43%
Cloud cover: 8%
Mon Jul 21
95°F
Sky Is Clear
Min: 76°F
Max: 98°F
Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 36%
Cloud cover: 3%
Tue Jul 22
96°F
Sky Is Clear
Min: 74°F
Max: 99°F
Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 39%
Cloud cover: 0%

More about 75604

About 75604

The ZIP code 75604 is associated with the city of Longview in Gregg County in Texas.

75604 Solar Power

75604 Solar Energy & Power

To learn more about solar energy and solar power in 75604, or for more solar-related resources for TX, check out 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.

Cities in Texas

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References

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