Normal annual production at the county's hydropower plants is just over 14 TWh. Norrbotten County provides approx. 11 per cent of the total electricity production in Sweden. The largest power plants are Harsprånget (2200 GWh), Letsi (2000 GWh) and Messaure (1930 GWh). Norrbotten has high energy consumption because of the local climate, long transports and the local industry's involvement in high-energy processes.