Power Pools that Contain One SPS The method just described of calculating the LOLP for a power pool made up of a number of identical 1 GWe capacity generators must be modified slightly if the power pool also contains one or more 5 GWe SPSs. The probability that a capacity of m GWe is available at an arbitrary time t is P(m) = p(m)-(l - p (SPS)) + p (m - 5)«p (SPS) (A.4) where P (m) = the probability that m GWe of capacity is available p (m) = the probability that m one gigawatt generators are available p (SPS) = the probability that the SPS is available The probability of not meeting the load in the Z'th maintenance interval would thus be
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