Avista (AVA) to Buy Hydro Energy, Boosts Clean Energy Moves Posted byZacks Equity Research December 31, 2021 Leave a comment on Avista (AVA) to Buy Hydro Energy, Boosts Clean Energy Moves Avista (AVA) inks a deal to buy electricity from two hydro projects from the Chelan County Public Utility District. This move will in turn, help AVA meet its clean-energy targets.