Therefore, in practical terms, a power plant’s heat rate can be affected by a number of factors and
power plants systems. Heat rate may present one measure of efficiency, but when considering
power plant GHG emissions, measuring carbon dioxide emissions per unit of energy output (i.e.,
per kWh or per MWh of generation) may provide a more useful measure.21
these areas may decrease efficiency through waste or shortfalls ...Maintenance and
performance testing are also critical for identifying and preventing losses.20