Geothermal      Earth energy - one of the Renewable Energy - is already in use in Lithuania. Private users in Vilnius and Klaipėda have instaled capacity of 114 kW from the aquifers up to 100 m deep.      Utilization of Geothermal energy is very different. It can provide single or centralized users with heat and electricity in a comfortable and environment friendly way. It is also possible complex utilization of hydrosphere resources especially for medical treatment, healthresort, agriculture ( market-gardening, fish farming, flax processing, corn, hay drying, etc.), industry (wood, fish, fruits drying, other technological processes), infrastructure (to melt in and snow from roads and runways), other fields / etc.      Geothermal energy can be extracted while applying heat pumps technology.      The main objectives. The knowledge and experience in the field of geothermal explorations gained during more then 10 years must be continued, expanded and implemented practically.      Main criteria for geothermal explorations development should be the following: shallow geothermy (applying heat pumps, heat accumulation into aquifers); hydrogeothermal resources of Cambrian, Middle-Lower Devonian, Upper-Middle Devonian HDR (Hot Dry Rocks) and their utilization perspectives.      It would be expedient to accomplish the following tasks: to evaluate entire geothermal resources in Lithuania and include them into National balance of resources. to collect information on spheres of utilization of Geothermal Energy and technologies applied. to perform operation analysis and ecological evaluation of geothermal power-supply stations exploitation. to perform geological, technical and economical evaluation of possibilities to renew and adapt existing and closed wells for production of Geothermal Energy. to perform geological, technical and economical calculations for geothermal electric power plant.      In Lithuania already some autonomous geothermal function in private sector with total capacity of 114 kW. Vydmantai geothermal heat plant (Kretinga district) is not completed. Klaipeda geothermal demonstration plant is going to be built soon.      The expedience of Vilkaviskis balneological geothermal complex, Baisogala geothermal heat plant and also must be proved after searching for investors, because of necessity of great assignments.

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