Throughout this week, electricity prices are relatively high, with a clear day-night pattern. Night prices of around 50 EUR/MWh are close to the marginal cost of coal fired power plants, while the higher prices during day times of around 90-100 EUR/MWh are close to the marginal cost of natural gas fired power plants. Total consumption (red dashed line), however, is more constant over the week, because electricity consumption for heating and pumping (pumped storage) increases at night, when electricity prices are low.