Simplified methods for renewable generation capacity credit calculation: A critical review

摘要

Capacity credits are widely used to quantify theability of different generating technologies to support demand.Most practical capacity credit calculations are based on detailedrisk modelling, however a wide range of simplified approachesare also in use. This paper presents a critical review of thesesimplified approaches, ranging from annual peak calculations andprobabilistic representations of wind, to closed-form expressionsderived for small installed wind capacities. The principal themesare that simplified methods must retain the key features ofthe problem at hand, and that to be of interest simplifiedmethods must either bring substantial computational advantages,or provide additional insight beyond that from a more detailedrisk calculation.