Reliability Evaluation of Nondispatchable Energy Sources in Generation Planning: A Wind Electrical System Case Study

Table 6

Reliability index calculation using various approaches.

Type of system	Frequency-domain approach		Time-domain approach
	Loss of load probability (LOLP)	Expected energy not served (EENS) in GWh/yr	Loss of load probability (LOLP)	Expected energy not served (EENS) in GWh/yr
IEEE RTS	0.009157	11.2960	0.0092	11.2956
IEEE RTS-wind	0.001077	1.4300	0.001077	1.4290
IEEE RTS-wind (80% load)	0.000023	0.0003	0.000023	0.0003
IEEE RTS-wind (90% load)	0.000197	0.0040	0.000196	0.0040
IEEE RTS-wind (110% load)	0.003686	6.3030	0.003683	6.2951
IEEE RTS-wind (120% load)	0.009788	20.7651	0.009789	20.7648