| Abstract |
In the Portuguese mainland Chaves and S. Pedro do Sul springs, in the northern part of the country, contain the hottest waters (76?C and 69?C, respectively). Their applications are restricted to space heating, greenhouse heating, bathing and swimming. Near Lisbon, a 1500m deep single well was drilled. Bottom hole temperature is 53?C and this water has been utilized for heating the Air Force Hospital. In the Azores islands geothermal energy is used for the production of electricity and greenhouse heating. There are three power stations at Pico Vermelho and Ribeira Grande geothermal fields: a 3MWe back-pressure unit in the northern sector of the area, a 5MWe binary plant (2 x 2.5 MWe units) in the central sector, and an 8 MWe binary plant (2 x 4 MWe units) in the northern sector. |