European Deep Geothermal Energy Program
Soultz HDR Project (Rhine Graben – France)

Subject: The Hot Dry Rock (HDR) Technology

www.soultz.net/version-en.htm

Geothermal Explorers Limited

Subject: Deep Heat Mining - Basel (Switzerland)

www.geothermal.ch/eng/projekt.html

Australian National University

Subject: Hot Rock Energy - The Concept

www.hotrock.anu.edu.au/index.htm

International Geothermal Association

Subject: What is geothermal energy?

www.iga.igg.cnr.it/geo/geoenergy.php

US Department of Energy

Subject: Geothermal Energy

www.energy.gov/energysources/geothermal.htm

Geothermal Resources Council

Subject: What is geothermal?

www.geothermal.org/what.html