T4-3: correction

tutorial-4/worksheet/sheet04.tex

@@ -170,8 +170,8 @@ Consider an electricity market with two generator types, one with the cost funct
 Consider the two-bus power system shown in Figure \ref{twobus}, where the two nodes represent two markets, each with different total demand $D_i$, and one generator at each node producing $P_i$. At node A the demand is $D_A = 2000 \si{\mega\watt}$, whereas at node B the demand is $D_B = 1000 \si{\mega\watt}$. Furthermore, there is a transmission line with a capacity denoted by $F_{AB}$. The marginal cost of production of the generators connected to buses A and B are given respectively by the following expressions:
 
 \begin{align*}
- MC_A & = 20 + 0.03 P_A \hspace{1cm}\eur/\si{\mega\watt\hour}  \\
- MC_B & = 15 + 0.02 P_B \hspace{1cm} \eur/\si{\mega\watt\hour}
+ MC_A & = 20 + 0.02 P_A \hspace{1cm}\eur/\si{\mega\watt\hour}  \\
+ MC_B & = 15 + 0.03 P_B \hspace{1cm} \eur/\si{\mega\watt\hour}
 \end{align*}
 
 Assume that the demands $D_A$ and $D_B$ are constant and insensitive to price, that energy is sold at its marginal cost of production and that there are no limits on the output of the generators.