Large-scale wind and solar farms require at least 10 times as much land per unit as coal- and natural gas-fired power plants, including the land used to produce and transport the fossil fuels, research shows. But only a fraction of all land is suitable for development. One site might have the wrong slope for solar panels, while another area might be home to an endangered species that development could doom. If developers pick the wrong site, they risk undermining goals of the Inflation Reduction Act, the landmark climate law that offers billions of dollars worth of tax credits for renewable energy projects nationwide.