4.6 Borduria Generation owns three generating units that have the following cost functions: Unit A: 15+ 1.4 PA +0.04 P² S/h Unit B: 25+ 1.6 PB +0.05 P² $/h Unit C: 20+ 1.8 Pc +0.02 P² $/h How should these units be dispatched if Borduria Generation must supply a load of 350 MW at minimum cost? 4.7 How would the dispatch of Problem 4.6 change if Borduria Generation had the opportunity to buy some of this energy on the spot market at a price of 8.20 $/MWh? 4.8 If, in addition to supplying a 350-MW load, Borduria Generation had the oppor- tunity to sell energy on the electricity market at a price of 10.20 $/MWh, what is the optimal amount of power that it should sell? What profit would it derive from this sale?
4.6 Borduria Generation owns three generating units that have the following cost functions: Unit A: 15+ 1.4 PA +0.04 P² S/h Unit B: 25+ 1.6 PB +0.05 P² $/h Unit C: 20+ 1.8 Pc +0.02 P² $/h How should these units be dispatched if Borduria Generation must supply a load of 350 MW at minimum cost? 4.7 How would the dispatch of Problem 4.6 change if Borduria Generation had the opportunity to buy some of this energy on the spot market at a price of 8.20 $/MWh? 4.8 If, in addition to supplying a 350-MW load, Borduria Generation had the oppor- tunity to sell energy on the electricity market at a price of 10.20 $/MWh, what is the optimal amount of power that it should sell? What profit would it derive from this sale?
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
Related questions
Question
I already know to do number 4.6 and number 4.7. The answers for 4.6 are PA=95.3 MW, PB=74.2 MW, PC=180.5 MW and total hourly cost=1927.15 $/h. The answers for 4.7 are PA=85 MW, PB=66 MW, PC=160 MW and total hourly cost=1911.20 $/h and market purchase is 39 MW. I just some helph with number 4.8 and al ready what the answers should be for 4.8: PA=110 MW, PB=86 MW, PC=210 MW, market sale is 56 MW and profit from sale is $33.03. i kept getting the wrong answers for 4.8, can someone look it up.
Transcribed Image Text:4.6 Borduria Generation owns three generating units that have the following cost
functions:
Unit A: 15+ 1.4 PA +0.04 P² S/h
Unit B: 25+ 1.6 PB +0.05 P² $/h
Unit C: 20+ 1.8 Pc +0.02 P² $/h
How should these units be dispatched if Borduria Generation must supply a load
of 350 MW at minimum cost?
4.7 How would the dispatch of Problem 4.6 change if Borduria Generation had
the opportunity to buy some of this energy on the spot market at a price of
8.20 $/MWh?
4.8 If, in addition to supplying a 350-MW load, Borduria Generation had the oppor-
tunity to sell energy on the electricity market at a price of 10.20 $/MWh, what
is the optimal amount of power that it should sell? What profit would it derive
from this sale?
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