Fears of Early Rollback of Tax Credits Spark Sharp Sell-Off in Solar Sector

TradingKey – Fueled by concerns over the potential early phase-out of renewable energy tax credits, U.S. solar stocks tumbled sharply on Tuesday. Enphase Energy, First Solar, Sunrun, and SolarEdge Technologies fell 23.97% , 17.89% , 40.04% , and 33.44% , respectively — making them the biggest losers on the S&P 500 index.

[Sunrun Intraday Chart, Source: investing.com]

According to media reports, the U.S. Senate has proposed an accelerated reduction of federal tax credits for solar and wind energy projects as part of Trump’s so-called "Make America Great Again" (MAGA) tax reform package. The proposal aims to cut tax credits by 60% in 2026 and fully eliminate them by 2028 , far earlier than the originally scheduled exit date of 2032 . This move has triggered widespread concern among investors about the long-term viability of the solar industry's profitability model.

Analysts noted that many solar projects heavily rely on cash flows generated from these tax incentives. An earlier-than-expected withdrawal could significantly reduce project returns, increase financing costs, and pose major challenges — particularly for small and mid-sized developers.

At this stage, the bill has not yet been finalized, and there remain key differences between the House and Senate versions. Final negotiations may still lead to modifications. Citigroup commented that while the current Senate proposal shows slight improvements compared to the House version, it still imposes restrictive pressure on sector growth.

Market participants widely believe that until the policy outlook becomes clearer, the solar sector will continue to face heightened uncertainty and volatility.