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IEA Geothermal R & D Programme Chapter 5 Annex VIII- Direct Use of Geothermal Energy A heated public swimming pool in Reykjavik, Iceland. (Photo courtesy of Orkuveita Reykjavikur) 5.0 Introduction Geothermal water has been used for centuries for various applications. In earlier time the hot water was only used where geothermal water was in surface springs. It was used for bathing, cooking and for therapeutic purposes. During last decades, direct use of geothermal water has increased; and today, direct use of geothermal energy can be everywhere. Today, geothermal water is used for different applications that require heat, such as heating buildings, individually or for whole towns; raising plants in greenhouses, drying crops, heating water at fish farms, snow melting, bathing and for therapeutic purposes and several industrial processes. To promote further direct use of geothermal water and to learn from each other, IEA-GIA decided to establish an Annex on this subject. The Direct Use of Geothermal Energy Annex was initiated in 2003, when the agreement entered into force. 64PDF Image | Geothermal Research and Tech IEA
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