User:Engineman/Power generating equipment efficiency and carbon footprint

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

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

• Biomass Fuelled Power Plants
• Coal
• Coal-fired power station
• Combined heat and power
• Cooling tower system
• District heating
• Electricity generation
• Environmental concerns with electricity generation
• Flue gas stacks
• Fossil fuel power station
• Geothermal power
• Relative cost of electricity generated by different sources
• Plant efficiency
• Virtual power plant