World-wide direct uses of geothermal energy 2000

World-wide direct uses of geothermal energy 2000 The worldwide application of geothermal energy for direct utilization is reviewed. This paper attempts to update the previous survey carried out in 1995 (Freeston, 1995) and presented at the World Geothermal Congress 1995 in Florence, Italy. For each of these updates since 1975, the recording of data has been similar, but not exactly the same. As in 1995, an effort was made to quantify geothermal heat pump data and the investment in geothermal energy development. Final update papers were received from 60 countries, of which 55 reported some form of geothermal direct utilization. Three additional countries were added to the list based on other sources of information. An estimate of the installed thermal power at the beginning of 2000 (1995 values in brackets) from the current reports is 15,145 MWt (8664 MWt) utilizing at least 52,746 kg/s (37,050 kg/s) of fluid, and the thermal energy used is 190,699 TJ/yr (112,441 TJ/yr). The distribution of the thermal energy used by category is approximately 42% for bathing and swimming pool heating, 23% for space heating, 12% for geothermal heat pumps, 9% for greenhouse heating, 6% for aquaculture pond and raceway heating, 5% for industrial applications, 2% for other uses, and less than 1% each for agricultural drying, snow melting, and air conditioning. The reported data for number of wells drilled was 1028, the work by professionals over the five-year period was 3363 person-years, and the total investment over the same five years was 841 million US$, indicating minimum values. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geothermics Elsevier

World-wide direct uses of geothermal energy 2000

Geothermics, Volume 30 (1) – Feb 1, 2001

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Publisher
Elsevier
Copyright
Copyright © 2001 CNR
ISSN
0375-6505
eISSN
1879-3576
DOI
10.1016/S0375-6505(00)00044-4
Publisher site
See Article on Publisher Site

Abstract

The worldwide application of geothermal energy for direct utilization is reviewed. This paper attempts to update the previous survey carried out in 1995 (Freeston, 1995) and presented at the World Geothermal Congress 1995 in Florence, Italy. For each of these updates since 1975, the recording of data has been similar, but not exactly the same. As in 1995, an effort was made to quantify geothermal heat pump data and the investment in geothermal energy development. Final update papers were received from 60 countries, of which 55 reported some form of geothermal direct utilization. Three additional countries were added to the list based on other sources of information. An estimate of the installed thermal power at the beginning of 2000 (1995 values in brackets) from the current reports is 15,145 MWt (8664 MWt) utilizing at least 52,746 kg/s (37,050 kg/s) of fluid, and the thermal energy used is 190,699 TJ/yr (112,441 TJ/yr). The distribution of the thermal energy used by category is approximately 42% for bathing and swimming pool heating, 23% for space heating, 12% for geothermal heat pumps, 9% for greenhouse heating, 6% for aquaculture pond and raceway heating, 5% for industrial applications, 2% for other uses, and less than 1% each for agricultural drying, snow melting, and air conditioning. The reported data for number of wells drilled was 1028, the work by professionals over the five-year period was 3363 person-years, and the total investment over the same five years was 841 million US$, indicating minimum values.

Journal

GeothermicsElsevier

Published: Feb 1, 2001

References

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