3.3 The following six companies participate, along with others, in the Southern Antarctica electrical energy market: Date Company Type Amount Price 10/9/15 Magenta Buy 50 14.50 Red: A generating company owning a portfolio of plants with a maximum capacity of 1000 MW. 20/9/15 Purple Sell 100 14.75 30/9/15 Yellow Green: Another generating company with a portfolio of plants with a maxi- mum capacity of 800 MW. Buy 200 15.00 10/10/15 Magenta Buy 100 15.00 Blue: A retailer of electrical energy. Yellow: Another retailer of electrical energy. 20/10/15 Red Sell 200 14.75 30/10/15 Green Sell 250 15.75 Magenta: A trading company with no generating assets and no demand. 30/10/15 Blue Buy 250 50 15.75 Purple: Another trading company with no physical assets. 10/11/15 Purple Buy 50 15.00 The following information pertains to the operation of this market for Monday 29 February 2016 between 1:00 and 2:00 PM. 15/11/15 Magenta Sell 100 15.25 20/11/15 Yellow Buy 200 14.75 Load forecasts Blue and Yellow forecast that their customers will consume 1200 MW and 900 MW respectively during that hour. 30/11/15 Blue Buy 300 15.00 10/12/15 Red Sell 200 16.00 Long-term contracts June 2015: Red signs a contract for the supply of 600 MW at 15 $/MWh for all hours between 1 January 2015 and 31 December 2020 July 2015: Blue signs a contract for the purchase of 700 MW for all hours between 1 February 2016 and 31 December 2016. The price is set at 12 S/MWh for off-peak hours and at 15.50 $/MWh for peak hours. August 2015: Green signs a contract for the supply of 500 MW at 16 S/MWh for peak hours in February 2016. September 2015: Yellow signs a contract for the purchase of electrical energy. The contract specifies a profile of daily and weekly volumes and a profile for daily and weekly prices. In particular, on weekdays between 1:00 and 2:00 P.M.. the volume purchased is 550 MW at 16.25 S/MWh. Futures contracts All contracts are for delivery on 29 February 2016 between 1:00 and 2:00 PM. Options contracts In November 2015, Red bought a put option for 200 MWh at 14.75 $/MWh. The option fee was $50. 15/12/15 Red Sell 200 15.50 20/12/15 Blue Sell 50 15.50 15/1/16 Purple Sell 200 14.50 20/1/16 Magenta Buy 50 14.25 10/2/16 Yellow Buy 50 14.50 20/2/16 Red Buy 200 16.00 25/2/16 Magenta Sell 100 28/2/16 Purple Buy 250 28/2/16 Yellow Sell 100 898 17.00 14.00 14.00 In December 2015, Yellow bought a call option for 100 MWh at 15.50$/MWh. The option fee was $25. Outcome The spot price on the Southern Antarctica electricity market was set at 15.75 S/MWh for 29 February 2016 between 1:00 and 2:00 PM. Owing to the difficulties at one of its major plants, Red was able to generate only 800 MW. Its average cost of production was 14.00 S/MWh. Green generated 770 MW at an average cost of 14.25 S/MWh. Blue's demand turned out to be 1250 MW. Its average retail price was 16.50 S/MWh. Yellow's demand turned out to be 850 MW. Its average retail price was 16.40 S/MWh. Assuming that all imbalances are settled at the spot market price, calculate the profit or loss made by each of these participants.