Given two thermal generating units with the following polynomial cost functions: Coal Fired: F1(P{) = 50 + 2P +0.02P?$/h; 40MW « P < 200MW Gas Fired : (F2(P2) = 50 + P2 + 0.04P?$/h; 60MW « P2 « 250MW \) In an economic dispatch, If the load is reduced to 180 MW, which case is cheaper? Select one: a. Unit 1 is OFF, and P2 = 180 MW b. P1 = 111.67 MW , P2 = 68.33 MW. C. P1 = 180 MW, and unit 2 is OFF. d. None of these e. P, = 120 MW , P, = 60 MW. O f. P1 = 114 MW, P2 = 66 Mw. Clear my choice

Given two thermal generating units with the following polynomial cost functions: Coal Fired: F1(P{) = 50 + 2P +0.02P?$/h; 40MW « P < 200MW Gas Fired : (F2(P2) = 50 + P2 + 0.04P?$/h; 60MW « P2 « 250MW \) In an economic dispatch, If the load is reduced to 180 MW, which case is cheaper? Select one: a. Unit 1 is OFF, and P2 = 180 MW b. P1 = 111.67 MW , P2 = 68.33 MW. C. P1 = 180 MW, and unit 2 is OFF. d. None of these e. P, = 120 MW , P, = 60 MW. O f. P1 = 114 MW, P2 = 66 Mw. Clear my choice

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.10P: For the circuit element of Problem 2.3, calculate (a) the instantaneous power absorbed, (b) the real...

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