Court ruling changes economics
From Renewable Energy Access:
In simple terms, the Court rejected arguments by many electric utilities whose power plants were grandfathered into the Clean Air Act, and then maintained that if they upgraded these power plants — they still would not have to meet Clean Air Act standards.
Renewable energy experts hailed the ruling as the first step to force baseload coal plants to invest in meeting emissions standards like all other energy sources — and that these investments will be reflected in increased rates, making baseload renewables such as biopower, concentrated solar, geothermal and wind more competitive.