Heating and Cooling with Geothermal Energy

1. 6th Inter-Parliamentary Meeting on Renewable Energy and Energy Efficiency Panel: Renewable Energy for Heating and Cooling Edinburgh, Scotland, UK, Oct. 6-8, 2005 Heating and Cooling with Geothermal Energy Dr. Burkhard Sanner European Geothermal Energy Council, Brussels Geothermische Vereinigung e.V., Geeste

2. Geothermal Energy can be spectacular! Geysirs and volcanoes show the earth heat Photos of US Geological Survey

3. Geothermal Energy can be out of sight and hard to find… Geothermal experts looking for traces of the system

4. Geothermal Energy can be out of sight and hard to find… Office building heated and cooled by geothermal heat pumps since 1991 Externally, no traces of the ground system are visible. Inside, only heat pumps and piping can be seen Office building “Technorama” at Düsseldorf airport

5. Geothermal Energy Definition: Geothermal Energy is energy stored in the form of heat beneath the surface of the solid earth (This definition is official in Germany, in guideline VDI 4640) Graph from Geothermal Education Office, California

6. High-Enthalpy Geothermal Energy world-wide Graph from Geothermal Education Office, California

7. High-Enthalpy Geothermal Energy in EU Graph from Geothermal Education Office, California

8. The Economic Situation of Geothermal Energy in EU The situation is very different in the various countries and geothermal technologies, according to natural resources and political issues. High enthalpy resources – in Italy, Greece, etc., for power, heat and other applications

9. A short glimpse at geothermal power First experiment to produce geo-thermal power, done in Italy in 1904 by prince Ginori Conti Photo courtesy of ENEL/ERGA, Italy Photos: Lund Modern geothermal power plants in Larderello, Italy

10. A short glimpse at geothermal power • Bad Blumau (Austria) • ORC-turbine • 250 kW el. output • air-cooled • operational since end of 2000 (Photos: Prmat/Rogner)

11. A short glimpse at geothermal power Principle of EGS system for geothermal power production Drilling rig at the European R&D site Soultz-sous-Forêts (F)

12. The Economic Situation of Geothermal Energy in EU The situation is very different in the various countries and geothermal technologies, according to natural resources and political issues. High enthalpy resources – in Italy, Greece, etc., for power, heat and other applications Deep geothermal energy mainly in basins (France, Germany, Poland, Italy, Hungary, etc.) for district heating, power, agriculture

13. The Potential of Geothermal Energy in EU Potential after Shell-study

14. Deep Geothermal Energy Geothermal heating plant Neustadt-Glewe photo O. Joswig doublet system, used since the late 1970s in France and since 1984 in (Eastern) Germany

15. Deep Geothermal Energy Cross-border geothermal district heating for the cities Simbach (D) and Braunau (A) Geological cross-section Graph: Geoteam

16. Deep Geothermal Energy • In most countries, geothermal district heating needs some investment support, reduced interest loans, etc. to become economic. • Cascade uses (district heating, industry, agri-culture, and other) improves economy, but usually are very difficult to achieve due to business obstacles, distances, etc. • The main financial obstacle is the heat distribution network (example: Bruchsal, D) • For heat distribution, Eastern European countries may have an advantage due to existing networks

17. Geothermal Greenhouses Geothermal greenhouse in Nigrita, Greece Cultivation of spirulinaalgae using geothermalheat

18. Geothermal application inthe food industry Geothermal tomato drying in Northern Greece The finished product

19. Geothermal application inthe food industry Fish factory in Laugar, Iceland Geothermal fish drying in Northern Iceland The finished product

20. The Economic Situation of Geothermal Energy in EU The situation is very different in the various countries and geothermal technologies, according to natural resources and political issues. High enthalpy resources – in Italy, Greece, etc., for power, heat and other applications Deep geothermal energy mainly in basins (France, Germany, Poland, Italy, Hungary, etc.) for district heating, power, agriculture Shallow geothermal energy – geothermal heat pumps everywhere

21. Remarks from various countries • In France, heat from geothermal district heating carries the full VAT, natural gas only a reduced value • In Poland, projects are affected by not adequate mining law, many taxes, fees and royalties. These expenses are too high compared to the annual heat sales, even in the biggest plant

22. Shallow Geothermal Energy • For shallow geothermal systems, in several countries a market-driven economy exists. This is further boosted by the current oil price development • These countries comprise Sweden, Switzerland, Germany, Austria, and to a lesser extend Norway, Netherlands, etc.

23. Shallow Geothermal Energy Geothermal heating atthe Polar Circle: Hotel Storforsen, Älvsby, Sweden33 BHE each 160 m deep

24. Shallow Geothermal Energy • A transition is underway of GSHP technology into two new areas: • Southern Europe and Mediterranean, with an emphasis on cooling and heating

25. Shallow Geothermal Energy Heating and cooling of the guesthouse of the European Centre for public law „Meduca“ in Legraina, Greece 2 groundwater heat pumps GSHP for cooling (and heating) with ground-water wells, for a supermarket in Mersin, Turkey

26. Shallow Geothermal Energy • A transition is underway of GSHP technologyinto two new areas: • Southern Europe and Mediterranean, with an emphasis on cooling and heating • Eastern and Southeastern Europe, where slowly a demand for more comfort in houses is growing, and a group of people who can afford it. • Countries are in particular Czech Republic and Poland, with others following

27. Some statistics for the shallow geothermal sector Annual heat pump sales in Germany, according to heat sources (after data from IZW, Hannover and BWP, Munich) Heat pumps used for hot tap water only are not includedData for 2004 preliminary

28. Some statistics for the shallow geothermal sector Heat Pump installations in Sweden (from SVEP) Development of GSHP installations in Switzerland, in MWth (from Kohl et al., 2002)

29. Some statistics on geothermal energy use Geothermal energy use in the EU 2002 (after data from BMU, 2004)

30. Some statistics on geothermal energy use Geothermal energy use in the enlarged EU 2004 (18 of 25 member countries, new members are shown in black). The valuesare mainlyvalid for 1999 and are taken from the country update reports ofWGC 2000

31. Geothermal Energy for the German Parliament Heat- and Cold Storage, heat source waste heat from Combined Heat- and Power-Generation (CHP) during summertime

32. Geothermal Energy for the German Parliament Map of the Parliament Buildings View from Chancellor´s office towards the Parliament building

33. Geothermal Energy for the German Parliament Heating- and Cooling-Network for the Parliament Buildings

34. www.egec.org www.geothermie.de Thank you für your attention!