1.

The incremental costs (in Rupees/M Wh) of operating two generating units are functions of their respective powers P1 and P2 in MW, and are given by
dC1
 = 0.2P1 + 50;
dC2
 = 0.24P2 + 40;
dP1dP2

Where
20 MW P1 150 MW
20 MW P2 150 MW
For a certain load demand, P1 and P2 have been chosen such that dC1 /dP1 = 76 Rs/MWh and dC2/dP2 = 68.8 Rs/MWh. If the generations are rescheduled to minimize the total cost, then P2 is __________.

A. 130
B. 1360
C. 1.036
D. 136.36
Answer» E.


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