Transmission losses from power station gate to consumer are generally reckoned as being about 10%. No great accuracy may be claimed as there are several slightly differing versions of losses, and the figures are continually changing.
Generation losses are much greater.
Coal is about 35% efficient under ideal conditions, maybe 25% in real world use with part load operation and start up and standby losses.
CCGT reaches 50% under ideal conditions, but averages about 33% in practice.
Transmission losses from power station gate to consumer are generally reckoned as being about 10%. No great accuracy may be claimed as there are several slightly differing versions of losses, and the figures are continually changing.
Generation losses are much greater.
Coal is about 35% efficient under ideal conditions, maybe 25% in real world use with part load operation and start up and standby losses.
CCGT reaches 50% under ideal conditions, but averages about 33% in practice.
