User:Engineman/Power generating equipment efficiency and carbon footprint

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This article is devoted to providing a comprehensive list of electrical power generating equipment efficiencies and other basic paramaters such as start up times, intalled coss, and carbon footprint etc clearly stating the criteria and conventions used.


Efficiency means ( for the purposes of this article ) the Gross (ie power measured at the generator terminals less own use power. Note on large stations all power is often exported from the generators, but works power is often imported separately at a lower voltage and this must not be neglected) electrical power output, divided by the fuel input measured using the Lower Calorific Value convention (ie the heating value of the fuel minus the latent heat of vaporisation of any steam in the fuel). The tables show peak steady state efficiency and actual in service / seasonal efficiency which will typically be less due to cycling losses and part loading.

Technology Fuel Approx. size MWe Peak Effic (Gross, NCV ) In service Effic Start up time from cold Lifecycle Maintenance Cost, EUR/kWh Carbon emission Gm/kWh electrical
Fuel cell
Fuel cell

Fuel cell

High speed diesel 1.6
Medium speed diesel
Slow speed diesel

Gas engine Natural Gas
Gas engine Natural Gas 1.6 1.2
Gas Turbine

CCGT Natural Gas 66
CCGT Natural Gas 440 58 56 0.2
Steam Turbine Coal

Steam Turbine Coal

Stirling Engine

Gasoline Engine

steam turbine Biomass

steam turbine Biomass

steam turbine Municipal Waste

ORC Turbine Biomass
Downdraft gasifier / gas engine

Updraft gasifier / gas engine

See Also[edit]