It is possible for the optimal solution to be such that: for some 9, 6 0. This states that there is a generator that is producing While market clearing price is below its marginal cost. Refer only to the structure of the economic dispatch formulation given below. Note that Pgmax i Pgmm and Pgmi" > 0. Primal: Dual: M": 2.6160 Cup!) Max D}- _ 2:gEG Ramaxqg 2966 pg 2 D, (6) 6 + r; + 8;; S Cg: V9 (399) pg 5 Ram\