Energy Storage Will Soon Replace Simple Cycle Combustion Turbine Peaker Plants. Power grids need extra generating capacity to work properly. For example, about 20 percent of New York Stateâs generation fleet runs less than 250 hours a year. Because they donât run much, âpeaker plantsâ are by design the cheapest and least efficient fossil generators.
The largest source of carbon dioxide (CO2) emissions are currently  from electric generation through the combustion of fossil fuels.  Particularly the burning of coal is mos â¦ t pollutive, as compared to  oil or natural gas generation.
CO2 - the major cause of global warming. Global warming is caused by the emission of greenhouse gases. 72% of the totally emitted greenhouse gases is carbon dioxide (CO2), 18% Methane and 9% Nitrous oxide (NOx).Carbon dioxide emissions therefore are the most important cause of global warming.lobal warming is caused by the emission of greenhouse gases. 72% of the totally emitted greenhouse gases is carbon dioxide (CO2), 18% Methane and 9% Nitrous oxide (NOx). Carbon dioxide emissions therefore are the most important cause of global warming.