Review of seasonal heat storage in large basins: Water tanks and gravel-water pits

Amaya V. Novo, Joseba R. Bayon, Daniel Castro-Fresno and Jorge Rodriguez-Hernandez

Applied Energy, 2010, vol. 87, issue 2, 390-397

Abstract: In order to respond to climatic change, many efforts have been made to reduce harmful gas emissions. According to energy policies, an important goal is the implementation of renewable energy sources, as well as electrical and oil combustion savings through energy conservation. This paper focuses on an extensive review of the technologies developed, so far, for central solar heating systems employing seasonal sensible water storage in artificial large scale basins. Among technologies developed since the late 1970s, the use of underground spaces as an energy storage medium - Underground Thermal Energy Storage (UTES) - has been investigated and closely observed in experimental plants in many countries, most of them, as part of government programmes. These projects attempt to optimise technical and economic aspects within an international knowledge exchange; as a result, UTES is becoming a reliable option to save energy through energy conservation. Other alternatives to UTES include large water tanks and gravel-water pits, also called man-made or artificial aquifers. This implies developing this technology by construction and leaving natural aquifers untouched. The present article reviews most studies and results obtained in this particular area to show the technical and economical feasibility for each system and specifics problems occurred during construction and operation. Advantages and disadvantages are pointed out to compare both alternatives. The projects discussed have been carried out mainly in European states with some references to other countries.

Keywords: Thermal; energy; storage; Energy; conservation; Artificial; aquifers; CSHPSS (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (60)

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