The United States is set to lose roughly 30 gigawatts of energy due to Monday’s solar eclipse.

According to the U.S. Energy Information Administration, the eclipse will partially or fully block sunlight to solar energy generators that produce a combined 84.8 GW of energy. Figures compiled by the Schneider Capital Group LLC estimated that the total amount of energy lost due to the eclipse will be around 30 GW, Bloomberg reported.

The output lost roughly equals that of 30 nuclear reactors.

The impact is felt most by Texas, which relies heavily on solar power; estimates held the total losses at about 17 GW. Solar energy is the second biggest producer of energy in the state.

“Texas will lose the most solar generating capacity because most of the state is in the path that will lose 90%-99% of solar power during the eclipse,” the EIA said on Friday.

The Northeast will lose 4.8 GW, while the Midwest will lose 4 GW.

The EIA reported that the total loss is estimated to be much greater than that lost during the last solar eclipse to touch the nation, in 2017, as solar energy is much more prominent now.

Sen. John Barrasso (R-WY) held the amount of power lost to the solar eclipse as evidence of the unreliability of solar energy.

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“The US will lose more than 30 gigawatts of solar energy during today’s total eclipse,” he said. “A good reminder the sun doesn’t always shine and solar power alone is not enough. But don’t worry, WY oil, gas & coal producers will continue to step up to keep the lights on across America.”

Despite the concern, Schneider Capital Group LLC estimated that the eclipse isn’t likely to affect energy prices or have a lasting impact.