Related by context. Frequent words. (Click for all words.) 59 coal fired 58 sulfur dioxide emissions 54 scrubbers 52 nitrogen oxide emissions 50 nitrogen oxide 49 Generating Station 48 selective catalytic reduction 48 repower 47 coke ovens 47 sulfur dioxide 46 nitrogen oxides 46 plants 46 mercury emissions 45 cooling towers 45 hydroelectric generating 45 mercury pollution 45 decommission 45 smokestacks 44 coal gasification 44 ash ponds 44 plant 44 smokestack 43 smokestack emissions 43 toxic pollutants 43 boilers 43 pollution 43 retrofit 43 sulfur coal 43 particulate emissions 43 cleaner burning 43 scrubber 43 pollutant emissions 43 hydroelectric 42 repowering 42 combustion turbines 42 TVA 42 coal 42 pollutants 42 SO2 42 air toxics 42 turbine generators 42 desulfurization 42 sewage treatment 41 megawatt 41 air pollution 41 Widows Creek 41 NOx emissions 41 Point Lepreau 41 SunCoke 41 emissions 41 turbines 41 copper smelting 41 nitrogen oxides NOx 40 megawatts 40 megawatt turbines 40 steam generators 40 combustion turbine 40 NOx 40 baseload 40 retrofitting 40 polluting 40 biomass boiler 40 Power Plant 40 cogeneration plant 40 flue gas 39 cement kilns 39 mothball 39 cogeneration 39 integrated gasification 39 pulverized coal 39 incinerators 39 microturbines 39 harmful pollutants 39 reduce carbon emissions 39 hydro electric 39 copper smelter 39 Fibrowatt 39 emit greenhouse gases 39 hydroelectric plants 39 emission 39 Iatan 39 hydroelectric dams 39 Cinergy Corp. 39 Exelon Generation 38 desulphurization 38 dry casks 38 SWEPCO 38 Steam Plant 38 aluminum smelting 38 retrofits 38 polychlorinated biphenyls 38 greenhouse gas emitting 38 electric utilities 38 nitrogen oxide NOx 38 particulate pollution 38 pollutant 38 wastewater treatment 38 megawatt reactors 38 Cinergy 38 coal ash 38 cleaner fuels