The sprawling Republican budget bill approved by the Senate Tuesday removes a proposed tax on solar and wind energy projects but quickly phases out tax credits for wind, solar and other renewable energy.

Tucked inside Republicans' massive domestic policy bill is an excise tax for wind and solar projects, a provision that came as a surprise not just to the renewable energy industry, but to numerous senators who are crafting the legislation.

A Republican plan heading to a vote in the Senate would quickly end incentives for clean energy and impose new taxes on some wind and solar projects, while boosting production of coal used to make ste