Government thresholds have become a commonly used tool in the pursuit of a cleaner energy mix that is less dependent on fossil fuels. Otherwise known as renewable energy portfolio standards (RPS), they require utilities in a given state to obtain a minimum percentage of their energy from renewable sources. According to the U.S. Energy Information Agency (EIA), thirty states have an enforceable RPS in place.
Recently, the state of Oregon turned heads by more than tripling its RPS, joining Hawaii, Vermont and California with one of the highest thresholds in the country.
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