Power-Generation Efficiency
Understand the difference between conversion efficiency, heat rate, auxiliary loads and net output.
Where this fits
Understand the difference between conversion efficiency, heat rate, auxiliary loads and net output.
Core system ideas
Efficiency compares useful electrical energy with input energy across a defined boundary.
Gross generator output is higher than net station output when plant auxiliaries consume part of the electricity.
Different technologies use different efficiency concepts, so comparisons require consistent boundaries.
Interfaces and tradeoffs
Generation interacts with fuel or resource availability, plant auxiliaries, transmission capability, maintenance and system demand. Nameplate capacity alone never describes the full operating contribution.
What organizations measure
Net efficiency, heat rate, auxiliary consumption and energy output.