Reinventing Fire: Bold Business Solutions for the New Energy Era offers market-based, actionable solutions integrating transportation, buildings, industry, and electricity. Built on Rocky Mountain Institute’s 30 years of research and collaboration in all four sectors, Reinventing Fire maps pathways for running a 158%-bigger U.S. economy in 2050 but needing no oil, no coal, no nuclear energy, one-third less natural gas, and no new inventions. This would cost $5 trillion less than business-as-usual—in addition to the value of avoiding fossil fuels’ huge but uncounted external costs.