Calculation of Operating Margin (OM)
1. Percentage share of electricity generation of low cost/must run power plants is less than 50% of total electricity generation of the exporting electricity system. Therefore simple operating margin method is used.
2. There are three options based on the data availability. Option A should be used if data is available. Option A is used
Operating Margin



See assumptions for calculating OM
Calculation of Build Margin (BM)
The set of power capacity additions in the electricity system that comprise 20% of the system generation (in GWh) and that have been built most recently.
Build Margin



Calculation of Combined Margin (CM)
See weighting factors for CM
Combined Margin


