Use of waste heat from geothermal energy in Húsavík to generated electricity and residential heating
A small settlement (2,500 residents) covers 80% of electricity demand from artesian geothermal springs located 20 km away from the town. Electricity has been generated by 1.8 MW Kalina Cycle with a working fluid of 82% ammonia-water solution since 2000. It is heated up by brine (120 °C) and then proceeds into evaporator, where 75% of the fluid is converted into steam, which drives the turbine. The next stop is a condenser and the whole process starts again. Cooled brine (80 °C) is further used to heat residential and public buildings.