May 9, 2014 10:35 PM by Jennifer Horbelt
DENVER (AP) - A federal judge has denied a challenge to Colorado's renewable energy standard.
U.S. District Court Judge William Martinez on Friday dismissed a challenge of a Colorado law that requires larger utilities to get 30 percent of their energy from renewable sources by 2020.
Martinez ruled that the renewable energy mandate does not violate the U.S. Constitution's interstate commerce clause that protects companies that do business in other states.
According to the Denver Post, the Energy and Environment Legal Institute argued that the law limits sale of coal-fired power outside of Colorado.
The Sierra Club says the ruling protects the development of clean energy in Colorado.
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