Two of the staunchest supporters of the four lower Snake River dams are pushing legislation that calls for the expansion of hydropower across the country and promotes innovation in the industry.

Cathy McMorris Rodgers and Dan Newhouse, both Republicans representing the east side of Washington, reintroduced their Hydropower Clean Energy Act on Thursday. The bill was first introduced in Congress last year. It affirms hydropower as an essential renewable energy source, cuts red tape and regulation, and pushes for the development of more efficient turbines and projects.