The Senate version of the bill includes a provision that would fully phase out both solar and wind power tax incentives by 2028. It does, however, keep incentives for nuclear, hydropower and geothermal energy for longer.

(Reuters) -Shares of U.S. solar energy companies tumbled in extended trade on Monday after Republicans who control the U.S. Senate Finance Committee unveiled changes to President Donald Trump's sweeping tax-cut and spending bill that would phase out solar, wind and energy tax credits by 2028.

U.S. solar stocks dropped in premarket trading on Tuesday after a Senate panel proposed a full phase-out of solar and wind energy tax credits by 2028, as part of changes suggested to President Donald Trump's sweeping tax-cut and spending bill.