Landolt-Börnstein - Group VIII Advanced Materials and Technologies

8.4 Technological and economical aspects of geothermal energy

Abstract

This chapter introduces the most important current concepts in geothermal energy use and aims to provide a sound starting point for more detailed study and work on this subject. Geothermal energy can be used in a variety of ways: directly as industrial process heat or for space heating (and even cooling). The chapter dwells on different technological and economical aspects that apply to the different types of direct geothermal energy use, i.e. shallow ground-source heat pump systems, deep borehole heat exchangers, and hydrothermal heating systems. It also talks about different technological and economical aspects that apply to different types of geothermal power production, depending on whether they are natural or engineered systems, involve dry or wet steam, or ORC or Kalina Cycle technology. Efficiency, life, and pollution differ among the technologies used for converting geothermal heat into electric energy. The economics of geothermal power production is ultimately defined by the cost of energy from other, mainly fossil, sources, in particular by the price for oil and gas. Ambitious programs are being discussed in some countries aiming to use this technique massively for developing geothermal energy for electric energy production; the public acceptance of an increasing number of these systems depends critically on whether the associated safety concerns of the public can be addressed adequately. Geothermal energy appears an attractive, promising, clean, and renewable source of energy.

Cite this page

References (85)

About this content

Title
8.4 Technological and economical aspects of geothermal energy
Book Title
Renewable Energy
In
8 Geothermal energy
Book DOI
10.1007/b83039
Chapter DOI
10.1007/10858992_20
Part of
Landolt-Börnstein - Group VIII Advanced Materials and Technologies
Volume
3C
Editors
  • K. Heinloth Send Email (100)
  • Editor Affiliation
  • 100 Physikalisches Institut, Universität Bonn, Nußallee 12, 53115, Bonn, Germany
  • Authors
  • C. Clauser Send Email (8)
  • Author Affiliation
  • 8 Lehrstuhl für Angewandte Geologie, RWTH Aachen, Aachen, Germany
  • Cite this content

    Citation copied