Related by context. Frequent words. (Click for all words.) 54 ARPA E 52 TARDEC 52 Hybrid Vehicle 52 National Nanotechnology Initiative 51 Hydrogen Fuel Cell 51 Energy DOE 50 Shell Hydrogen 50 PHEV 50 alternative fuels 50 Alternative Fuels 50 hydrogen powered 50 Clean Fuels 49 Crew Exploration 49 Hydrogen Economy 49 Hydrogen 49 Airborne Laser 49 STTR 48 Fuel Economy 48 GNEP 48 PHEVs 48 Alternative Fuel 48 renewable fuels 48 eTec 47 hydrogen fuel 47 Fuel Efficiency 47 DOE 47 cellulosic ethanol 47 Fuel Cell Partnership 47 Lotus Engineering 47 Cellulosic ethanol 47 hydrogen 47 electric propulsion 47 Fuel Cell 46 electric powertrains 46 hybrid electric 46 DARPA 46 Clean Energy 46 electric powertrain 46 electric drivetrain 46 EPRI 46 cellulosic biofuels 46 SBIR 46 Clean Cities 46 HEVs 45 FutureGen 45 NREL 45 NextEnergy 45 Third Frontier 45 Centennial Challenges 45 EnerDel 45 Advanced Biofuels 45 Lithium ion 44 tailpipe emissions 44 ecoENERGY 44 Neah Power 44 hydrogen fueling 44 liquefied coal 44 A#Systems 44 Electric Vehicle 44 Dow Kokam 44 Flex Fuel 44 Research ONR 44 Virent 44 ACEEE 44 hybrid powertrain 44 Nunn Lugar 44 Advanced Battery 44 EERC 44 Ford Escape Hybrid 44 MJFF 44 Argonne National 44 SYNOPSIS 44 Great Lakes Restoration 44 internal combustion engine 43 hybrid drivetrain 43 Integrated Gasification Combined Cycle 43 SOFC 43 QuantumSphere 43 CRADA 43 Johnson Controls Saft 43 Research Institute EPRI 43 Smart NanoBattery 43 E# ethanol 43 Ener1 43 Sandalow 43 QD Vision 43 NYSERDA 43 Renewable Fuels 43 alternative energies 43 UltraCell 43 NorTech 43 Volt 43 powertrains 43 FFVs 42 biofuels 42 Lithium ion batteries 42 Light Tactical Vehicle 42 electrically driven 42 Clean Coal 42 flex fuel 42 Clean Skies