This study analyzes a plan to convert New York State's (NYS's) all-purpose (for electricity, transportation, heating/cooling, and industry) energy infrastructure to one derived entirely from wind, water, and sunlight (WWS) generating electricity and electrolytic hydrogen. Under the plan, NYS's 2030 all-purpose end-use power would be provided by 10% onshore wind (4020 5-MW turbines), 40% offshore wind (12,700 5-MW turbines), 10% concentrated solar (387 100-MW plants), 10% solar-PV plants (828 50-MW plants), 6% residential rooftop PV (similar to 5 million 5-kW systems), 12% commercial/government rooftop PV (similar to 500,000 100-kW systems), 5% geothermal (36 100-MW plants), 0.5% wave (1910 0.75-MW devices), 1% tidal (2600 1-MW turbines), and 5.5% hydroelectric (6.6 1300-MW plants, of which 89% exist). The conversion would reduce NYS's end-use power demand similar to 37% and stabilize energy prices since fuel costs would be zero. It would create more jobs than lost because nearly all NYS energy would now be produced in-state. NYS air pollution mortality and its costs would decline by similar to 4000 (1200-7600) deaths/yr, and $33 (10-76) billion/yr (3% of 2010 NYS GDP), respectively, alone repaying the 271 GW installed power needed within similar to 17 years, before accounting for electricity sales. NYS's own emission decreases would reduce 2050 U.S. climate costs by similar to$3.2 billion/yr. (C) 2013 Elsevier Ltd. All rights reserved.