Energy Innovation News

Can a Solar Eclipse Cause Power Outages?

Gexa Energy
April 26, 2023
minutes read
Gexa Energy
Publication Date:
October 11, 2023
Last updated:
October 11, 2023

Solar eclipses are awe-inspiring, exciting, and rare events. As solar electricity becomes increasingly integrated into the Texas grid, questions naturally arise about how celestial events like solar eclipses could impact energy production. And as the upcoming eclipse draws near, many wonder: "Is a solar eclipse going to cause a power outage?" In this article, we'll explore the relationship between an eclipse and solar panels, the solar eclipse and electric grid connection, and what to expect from the solar eclipse.  


What Is a Solar Eclipse?

A solar eclipse occurs when the moon passes between the Earth and Sun, either partially or fully blocking our primary source of light and heat. The last prominent one happened in 2017, and the next one, a partial annular eclipse, is due in October 2023.  

The Solar Eclipse and Our Homes

Solar eclipses are fascinating celestial events that can have a brief, yet significant, impact on solar energy production. And this is no cause for concern, but merely adds to our sense of wonder and appreciation for nature. Although an eclipse momentarily obscures the sun—a key player in Texas's energy generation—it serves more as a valuable learning experience than as a trigger for severe power outages.

For residential solar production, eclipses can mean a short-lived drop in energy generation. Let's dive deeper into the specifics of the upcoming 2023 solar eclipse.  

The 2023 Solar Eclipse

  • Date: October 14, 2023  
  • Time: In Texas, the partial eclipse begins at 10:23am CDT and ends 1:33pm CDT.  
  • Duration: The whole event will take about 5 hours. The actual eclipse will last for about 5 minutes.  
  • Type: Annular solar eclipse

NASA gave us the exciting news reporting that, “On Oct. 14, 2023, an annular solar eclipse will cross North, Central, and South America. This eclipse will be visible for millions of people in the Western Hemisphere.”  

The 2023 solar eclipse is expected to be an annular one where the moon covers the sun's center, leaving the sun's visible outer edges to form a "ring of fire." This natural spectacle is expected to last for several minutes and would cast its celestial display across major parts of the United States. Texas is expected to witness the eclipse partially, with sun exposure being relatively reduced during this period.

How Eclipses Affect Solar Panels

Eclipses pose an interesting dynamic for solar electricity generation. Solar panels rely on the sun’s rays to generate electricity, and in an eclipse, solar panel function is affected. Eclipses directly impact photovoltaic cells in solar panels by momentarily reducing sunlight exposure. This reduction affects energy production temporarily. Given its short-term nature, there’s no reason for alarm.  

This drop in solar energy yield, although fleeting, could impact the dimensional efficiency of the Texas grid. A total eclipse will cause a more significant drop in energy generation compared to a partial or annular eclipse. Interestingly, an eclipse on a sunny day can lead to more pronounced energy losses than on a cloudy or rainy day due to the sharp contrast in normal solar radiation levels.

Impact on Texas Residents Using Renewable Energy Plans

While the upcoming eclipse will briefly affect Texas's renewable energy output, the grid is well-prepared to manage such temporary disruptions. Whilst residential solar panels might see a dip in their contribution to the Texas grid during the eclipse, mostly the grid operators foresee these natural events and make preparations to account for the temporary slack.  

Often, grid operators compensate for this temporary dip in solar energy by leveraging other clean energy sources, such as nuclear power. Post-eclipse, there will be a swift renewable energy "rebound" as solar panels return to their regular energy production levels.

How Texans Can Do Their Part During the Eclipse

Gexa Energy advises Texans to act proactively in maintaining grid stability and optimizing their energy usage. Simple measures like turning off appliances when not in use and using smart thermostats to manage energy use effectively – available for free as part of several Gexa Energy electricity plans - can go a long way. Heading outside to experience the eclipse could also reduce household energy consumption.

Even though the eclipse is fleeting, Texans can make a meaningful contribution by:

  • Conserve Energy: Use only essential appliances. Turn off devices when not in use.
  • Smart Device Calibration: Adjust thermostats, fans, and switches to power-saving modes during the eclipse. To learn more about smart thermostats, check out Gexa’s smart thermostat electricity plans to enhance your home's energy efficiency.
  • Stay Informed: Understand your energy plan and any rate changes due to the eclipse.
  • Experience the Eclipse: Step outside and marvel at the spectacle. Not only is it a wondrous event, but it also conserves indoor energy. However, remember that hosting large viewing parties may increase energy consumption.

Safety During an Eclipse

Enjoying an eclipse is a truly remarkable experience, but safety should always be the priority. Never look directly at the sun, use special eclipse glasses or pinhole projectors, and have backup power options ready if you rely on critical electrically-powered devices.

In conclusion, while a solar eclipse blackout or solar power outage might seem concerning, Texas's robust grid system, combined with residents' efforts, ensures that the state remains powered and ready. Let's embrace the upcoming eclipse with awareness, curiosity, and a collective spirit of cooperation.

Wrapping Up

While a solar eclipse might momentarily affect solar energy generation, it's unlikely to cause significant power outages. The key lies in our response, understanding the phenomenon, and its impact on solar power, thereby planning and managing our energy use effectively. Explore Gexa Energy's solar energy solutions for more information on the benefits of solar for your home and learn what to expect from the solar eclipse.  


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Gexa Energy purchases renewable energy credits (RECs) from renewable generation resources throughout North America to match 100% of the energy sold under your electric plan. The RECs Gexa purchases represent the renewable attributes of power generated from a variety of renewable energy sources, including, but not limited to, the sun, wind, geothermal, hydroelectric, wave or tidal energy, and biomass or biomass-based waste products, including landfill gas.