We investigate distortions in performance and value stemming from the capital structure of renewable power plants. In 652 U.S. plants from 2006-2024, wind (solar) plants, for which tax equity returns depend (do not depend) on production quantity, produce 6-9% (no) closer to capacity until the tax equity investor’s exit. Tax-equity financed wind plants have lower revenue per megawatt produced, negatively affecting common equity returns. Two natural experiments suggest that the greater capacity utilization is due to monitoring and contracting by tax equity investors and not the relaxing of financial constraints or ex-ante project selection. Tax equity’s distortionary effect is attenuated by the presence of back-levered debt, which is held by equally sophisticated investors and is secured by the sponsor’s equity position in the project.