U.S. Senator Jeff Bingaman details several provisions contained with the Renewable Electricity Standard (RES) bill he and six other senators introduced this week. The measure proposes a national RES for utility companies, that would increasingly use larger amounts of power from renewable sources like wind, solar, and biomass. RES would help cement New Mexico's role as a leader in clean energy technology, and has been a priority for Bingaman for years. Bingaman chairs the Senate Energy and Natural Resources Committee.