Renewable Energy Standards Target of Multi-Pronged Attack

Despite little success so far and growing support nationally for clean energy, a multi-pronged campaign to undercut renewable power mandates in the states is showing no signs of letting up.

Over the past few years, a rising tide of legislation has sought to repeal or weaken renewable portfolio standards (RPS), which require a certain share of a state's electricity supply to come from sources like solar and wind. Lesser known are the few lawsuits filed to challenge the constitutionality of these laws.

Many of these attempts have fizzled, but some are being revived this year. In total, 42 efforts are wending their way through legislatures and courts in more than two dozen states, according to the North Carolina Solar Center, a clearinghouse for state renewable energy policies.

"The danger of some of these [RPS laws] being repealed is a little bit greater this year than it was last year," said Justin Barnes, a senior policy analyst at the center.

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