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.
The world's countries contribute different amounts of heat-trapping gases to the atmosphere. The table below shows data compiled by the Energy Information Agency (Department of Energy), which estimates carbon dioxide emissions from all sources of fossil fuel burning and consumption.011 Total Carbon Dioxide Emissions from the Consumption of Energy (Million Metric Tons). 2011 Per Capita Carbon Dioxide Emissions from the Consumption of Energy (Metric Tons of Carbon Dioxide per Person).