Related by context. Frequent words. (Click for all words.) 59 EnerDel 54 United Solar Ovonic 54 Hemlock Semiconductor 49 Suniva 49 Proterra 48 A#Systems 48 Solyndra 47 Johnson Controls Saft 47 Secretary Steven Chu 47 Amonix 46 Polypore 46 Johnson Controls 46 Gov. Bev Perdue 46 Polypore International 45 Petra Solar 45 Cobasys 45 Abound Solar 45 Energy NYSE DUK 45 SoloPower 44 Ener1 44 Carbon Motors 44 rechargeable electric 44 Steven Chu 44 lithium ion battery 44 Advanced Battery 44 Altairnano 44 Plextronics 43 Gamesa 43 Nucor Steel 43 Research Triangle 42 Exide Technologies 42 Range Fuels 42 Greenville SC 42 cellulosic biofuels 42 Chevrolet Volt electric 42 Piedmont Triad International 42 Charlotte NC 42 RF Micro 42 Konarka 42 LG Chem 42 HelioVolt 42 Nucor 42 GE Hitachi 42 Nucor Corp. 41 GE Aviation 41 CEO Jeffrey Immelt 41 PV Powered 41 Abengoa Solar 41 ARPA E 41 Berry Plastics 41 Allison Transmission 41 FuelCell Energy 40 solar photovoltaic 40 Greensboro 40 NREL 40 MCNC 40 Spartanburg SC 40 Pittsboro 40 NextEnergy 40 Fisker Automotive 40 megawatt solar 40 Progress Energy 40 BofA NYSE BAC 40 Raleigh Durham 40 Clean Energy 40 Detroit Hamtramck 40 Raleigh 40 Eastman Chemical Co. 40 Immelt 40 wind turbine manufacturer 40 RF Micro Devices 40 SunCoke 40 Golden LEAF 40 Fisker 40 Exide 39 Evergreen Solar 39 wind turbine blade 39 Rep. Mel Watt 39 TI Automotive 39 Gov. Beverly Perdue 39 Governor Mitch Daniels 39 Ultralife 39 Becky Skillman 39 HondaJet 39 Samuel Bodman 39 lithium ion 39 Winston Salem 39 Serologicals 38 biomanufacturing 38 Perdue 38 Superior Essex 38 Statesville 38 Delphi Automotive 38 offshore wind turbine 38 Lotus Engineering 38 Electrovaya 38 Nanosolar 38 Statesville NC 38 CEO Dan Akerson 38 North Carolina 38 cellulosic ethanol