The LHV figure is not a computation of electricity net energy compared to energy content of fuel input; it is 11% higher than that. The HHV figure is a computation of electricity net energy compared to energy content of fuel input. If the LHV approach were used for some new condensing boilers, the efficiency would calculate to be over 100%. Manufacturers prefer to cite the higher LHV efficiency, e.g. 60%, for a new CCGT, but utilities, when calculating how much electricity the plant will generate, divide this by 1.11 to get the real HHV efficiency, e.g. 54%, of that CCGT. Coal plant efficiencies are computed on a HHV basis since it doesn't make nearly as much difference for coal burn, as for gas.