Related by context. Frequent words. (Click for all words.) 48 greenhouse gas 45 Clean Energy 45 PJM 44 electric utilities 44 greenhouse gases 43 greenhouse gas emissions 42 emission reduction 42 carbon emission 42 greenhouse gas emission 42 mercury emissions 41 Renewable Energy 41 GHG 41 carbon dioxide emissions 40 emissions 40 carbon emissions 40 Climate Action 40 emission reductions 40 carbon 40 FERC 40 heat trapping gases 39 reduce greenhouse gas 39 ERCOT 39 National Grid 39 Allegheny Energy 39 PSEG 39 emission 39 renewable energy 38 Natural Gas 38 Renewable 38 carbon credits 38 heating oil 38 Emissions 38 Clean Air 38 Nuclear Non Proliferation 38 Energy Efficiency 37 offshore wind 37 carbon dioxide 37 carbon sequestration 37 polluters 37 acid rain 37 GHG emissions 37 E ZPass 37 carbon capture 37 coal fired 37 Vermont Yankee 37 smart grid 36 Constellation Energy 36 greenhouse emissions 36 Environmental Protection 36 nitrogen oxide 36 renewables 36 NStar 36 MTBE 36 FirstEnergy 36 reduce carbon emissions 35 Wind Energy 35 FPL Group 35 KeySpan 35 Energy Regulatory Commission 35 Xcel Energy 35 congestion pricing 35 emitters 35 Massachusetts 35 reducing carbon emissions 35 AEP 35 Vattenfall 35 NRG Energy 35 multistate 35 DEP 35 Smart Grid 34 Con Edison 34 Vermont 34 nitrogen oxides 34 Iberdrola 34 Nuclear Nonproliferation Treaty 34 Renewables 34 nuclear Non Proliferation 34 Climate Change 34 Kyoto Protocol 34 natural gas 34 New Jersey 33 BGE 33 states 33 Cape Wind 33 Exelon 33 Entergy 33 LIHEAP 33 fossil fuel 33 Environmental Protection Agency 33 carbon offsets 33 ComEd 33 TXU 33 weatherization 33 CO2 emissions 33 wind farms 32 FirstEnergy Corp. 32 Connecticut 32 Petroleum Exporting Countries 32 Reliant Energy 32 FairPoint 32 Public Utility