The U.S. Senate's massive budget bill that passed on Tuesday will make it harder to develop wind and solar energy projects, despite the removal of some contentious provisions, industry advocates and lawmakers said.

In the latest political wrangle over energy and climate policy, a group of Republican senators over the weekend added provisions to the U.S. federal budget bill that, as currently written, would end clean energy tax credits at the personal level and at utility scale and increase taxes on foreign-made parts for solar power equipment.