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Solar Power in 78066 (Rio Medina, TX)

Solar Energy in 78066

The month of September has the highest historical solar radition values in 78066 with an average of 6.1 kWh/m2/day. [More]

Solar Panels in 78066

Solar panels in 78066 that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output. [More]

Sunrise & Sunset in 78066

The total length of the day in 78066 (Rio Medina, TX) today (December 10, 2025) will be 10 hours and 20 minutes. [More]

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78066 Solar Energy

Solar Energy in 78066 (Rio Medina, TX)

Solar Energy Data for 78066

See the chart below to see how different types of solar panel installations compare in 78066.

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


Solar Energy Analysis for 78066

Solar Radiation Data in 78066

Based on historical 78066 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 78066. [1]

The region associated with 78066 has an average monthly Global Horizontal Irradiance (GHI) of 4.76 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 2% greater than the average monthly Direct Normal Irradiance (DNI) of 4.68 kWh/m2/day. [1]

Solar installations in 78066 that are always titled at the latitude of Rio Medina (Average Tilt at Latitude or ATaL) average 5.2 kWh/m2/day, or about 9% greater than the average monthly GHI of 4.76 kWh/m2/day and approximately 11% greater than the average monthly DNI of 4.68 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 78066

Solar Radiation Data in 78066

See the chart below for monthly solar radiation levels in 78066.

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

Solar Radiation Analysis for 78066

Solar Radiation Data in 78066

The region associated with 78066 has a average annual solar radiation value of 5.44 kilowatt hours per square meter per day (kWh/m2/day). [1]

The month with the highest historical solar radition values in 78066 is September with an average of 6.1 kWh/m2/day, followed by August at 6.03 kWh/m2/day and July at 5.81 kWh/m2/day. [1]

The three months that historically average the lowest average solar radiation levels in 78066 are December with an average of 4.63 kWh/m2/day, followed by January with an average of 4.72 kWh/m2/day and November at 4.82 kWh/m2/day. [1]

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Solar Power Comparison: 78066 vs. the U.S.

Solar Power Levels in 78066

The average monthly solar radiation level in 78066, of 5.44 kilowatt hours per square meter per day (kWh/m2/day) is approximately 38% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 18% 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: 78066 vs. the U.S.

Below is a month-by-month comparison of how average 78066 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 78066

Sunrise / Sunset in 78066

  • Sunrise/Sunset for December 10, 2025 [2]
    • Sunrise: 7:18 am
    • Sunset: 5:38 pm
    • Length of Day: 10:20
Solar Energy Statistics for 78066

Best Months for Solar in 78066

  • Top Solar Power Months Historically [1]
    • Solar Radiation September (6.1 kWh/m2/day)
    • ATaL: August (6.16 kWh/m2/day)
    • DNI: August (5.76 kWh/m2/day)
    • GHI: June (6.61 kWh/m2/day)

* See glossary & definitions above.

Solar Panel Installs in 78066

We do not have data on solar panel installations in ZIP Code 78066 at the current time.

Solar Power Output in 78066

The Power of Solar in 78066

Monthly AC solar system output averages for 78066. Month-by-month solar power, as ranked by AC output, in 78066. [2]

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

Solar Output Analysis for 78066

Solar Radiation Data in 78066

78066 has a average annual solar AC output value of 5993.43 kilowatt hours (AC). [2]

The month with the highest historical solar power output in 78066 is August with an average of 547.32 kWhac, followed by September at 540.99 kWhac and October at 533.13 kWhac. [2]

The three months that historically average the lowest average solar output levels in 78066 are November with an average of 448.72 kWhac, followed by December with an average of 452.9 kWhac and January at 459.64 kWhac. [2]

Weather Forecast for 78066 [5]

Wed Dec 10
75°F
Sky Is Clear
Min: 45°F
Max: 75°F
Moderate breeze: 15 mps NNE
Precip.: n/a
Humidity: 32%
Cloud cover: 0%
Thu Dec 11
65°F
Sky Is Clear
Min: 45°F
Max: 70°F
Gentle Breeze: 8 mps S
Precip.: n/a
Humidity: 31%
Cloud cover: 3%
Fri Dec 12
73°F
Overcast Clouds
Min: 52°F
Max: 80°F
Gentle Breeze: 10 mps SSW
Precip.: n/a
Humidity: 67%
Cloud cover: 96%
Sat Dec 13
76°F
Light Rain
Min: 62°F
Max: 76°F
Gentle Breeze: 8 mps SE
Precip.: Chance of Rain
Humidity: 58%
Cloud cover: 89%
Sun Dec 14
66°F
Overcast Clouds
Min: 56°F
Max: 66°F
Moderate breeze: 16 mps NE
Precip.: n/a
Humidity: 79%
Cloud cover: 93%
Mon Dec 15
57°F
Light Rain
Min: 54°F
Max: 60°F
Moderate breeze: 13 mps E
Precip.: Chance of Rain
Humidity: 71%
Cloud cover: 100%

More about 78066

About 78066

The ZIP code 78066 is associated with the city of Rio Medina in Medina County in Texas.

78066 Solar Power

78066 Solar Energy & Power

To learn more about solar energy and solar power in 78066, or for more solar-related resources for TX, check out the U.S. Energy Information Administration.

Did you know?

Various missions to space by different countries are known to utilize solar energy as a main power source.

Cities in Texas

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References

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