Abstract :
In 1992, the four Northern Ireland power stations were sold with power purchase agreements (PPAs) put in place for each station generating unit for periods ranging between 5 and 18 years. This paper describes how the main elements of the PPAs are: fuel cost pass through; and (ii) availability payments which (a) generate profit element of the income stream for generators; and (b) provide for system support services to enable the power system operator to meet his licence requirements
