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  1. The incremental cost character istics of two generators delivering 200 MW are as follows:
    dF1
    = 2.0 + 0.01P1;
    dP1

    dF2
    = 1.6 + 0.2 P2;
    dP2

    For economic operation, the generations P1 and P2 should be
    1. P1 = P2 = 100 MW
    2. P1 = 80 MW, P2 = 120 MW
    3. P1 = 200 MW, P2 = 0 MW
    4. P1 = 120 MW, P2 = 80 MW
Correct Option: D

P1 + P1 = 200

and
dF1
=
dF2
dP1dP2



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