Through their backing of Americans for Prosperity, Charles and David Koch have attempted to block multiple tax credits, subsidies and initiatives that support the growth of the renewable energy industry. As the political arm of two titans of the fossil fuel industry, it’s no surprise that AFP has railed against renewable energy – everything from biofuels, to wind and solar.

AFP routinely identifies proposed tax credits for renewable energy production as “key votes,” essentially scoring Members of Congress based on their willingness to block federal support for renewable energy projects.

In Georgia, AFP went a step further in their opposition to solar energy, propagating a claim that “a proposal requiring Southern Co. subsidiary Georgia Power to buy more solar energy could raise energy bills by 40 percent,” according to the Huffington Post. The same HuffPo report notes that “the claim is misleading.”

Not ones to discriminate in their opposition to different types of renewable energy, AFP and the Kochs have also opposed the expansion of the wind production tax credit.