Answer the questions based the bid offers from supply and demand sides, in order to discuss the market energy price.

In the day-ahead market, the supply side bid offers are as follows:

Supply ID Quantity (MW) Price ($)

SA 200 10

SB 100 15

SC 50 20

SD 100 25

SE 50 30

In the day-ahead market, the demand side bid offers are as follows:

Demand ID Quantity (MW) Price ($)

DA 200 50

DB 100 40

DC 50 30

DD 50 25

DE 100 10

When the time move to the same hour in the real-time market. The bid offers from the supply side do not change.

Supply ID Quantity (MW) Price ($)

SA 200 10

SB 100 15

SC 50 20

SD 100 25

SE 50 30

The demand sides becomes

Demand ID Quantity (MW)

DA 210

DB 110

DC 60

DD 90

DE 0

Please answer the following questions:

1.What is the number of the day-ahead market energy price? (5 points)

2.What is the number of the real-time market energy price? (5 points)

3.What is the profit of the supply ID SD in the day-ahead and real-time markets in total? (20 points)

4.What is the profit of the supply ID SE in the day-ahead and real-time markets in total? (20 points)

5.What is the cost of the demand ID DD in the day-ahead and real-time markets in total? (20 points)

6.What is the cost of the demand ID DE in the day-ahead and real-time markets in total? (20 points)