The futures market price for electricity is the current average estimate by traders of the electricity prices of the future. Many factors, which are difficult to estimate in advance, have to be considered by traders: How is the supply of electricity, i.e. the available feed-in capacity of European power plants and their costs such as gas, coal and CO2 prices, developing? How is demand developing in terms of both its level and its structure? Another factor is also becoming increasingly important: the weather.