Elon Musk Says Solar Power Is 'Very Obviously' The Future After Trump's Bill Slashes Incentives: 'If You Can Do Elementary Math'

Elon Musk on Friday quipped that solar power is the future, days after his ally, President Donald Trump’s highly anticipated tax bill, cut key incentives for climate-specific actions, including rooftop solar.

The Tesla Inc. CEO took to X, formerly Twitter, to express how he thinks solar power is the future, and that it should be evident to anyone who can do “elementary math.”

“Compared to the Sun, all other energy combined is like caveman burning some twigs,” he said in the post.

Musk’s post is notable considering he is one of President Trump's close allies, having invested $250 million in campaign financing to help him get elected.

While Trump rewarded Musk by making him a senior advisor and getting him to lead the Department of Government Efficiency (DOGE), Musk has once again endorsed solar power, days after the Trump administration cut incentives for individuals installing rooftop solar panels.

Trump’s tax bill, which has passed the House, would gut the 30% tax credit individuals get for rooftop solar installations if the proposal passes in the Senate.

For Tesla and other companies in the sector, this could hit the top and bottom lines if sales decline. Tesla Energy, which has been one of the fastest growing businesses of the electric vehicle giant, sells fully integrated solar and energy storage solutions.

Tesla’s energy segment witnessed 114% growth in 2024, deploying 31.4 gigawatt-hours of capacity during the year.

However, Trump’s tax bill could play spoilsport for the company—it sent solar stocks tumbling on Thursday, with industry insiders saying it threatens hundreds of billions of dollars in investments in the sector.

“It’s not too late for Congress to get this right. The solar and storage industry is ready to work with the U.S. Senate on a more thoughtful and measured approach,” said Abigail Ross Hopper, president and CEO of the Solar Energy Industries Association.

Trump also expressed his dislike for windmills. He called on the U.K. to ditch the energy source and switch to drilling oil in the North Sea instead to gain access to clean energy.

Tesla’s stock is down 15.20% year-to-date, but up 96.93% over the past 12 months.

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