Geothermal energy in Switzerland, an example for France

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futuranat
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Geothermal energy in Switzerland, an example for France




by futuranat » 03/08/09, 17:59

Hello,

I hope not to return to a subject already discussed but I wanted to share with you this very good article on Switzerland: http://www.enerzine.com/4/7932+la-suiss ... rmie+.html
Okay, they spend more for geopolitical reasons than environmental reasons. But they do it well and seriously, by carrying out a geothermal audit of the country, by funding research on the subject, ...
If geothermal energy in France could be that, it would be quite wonderful
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by sen-no-sen » 05/08/09, 20:49

Very good article!
The Swiss are launching good renewable energy projects (Hot Dry Rock geothermal energy, geothermal heat recovery in mountain tunnels, solar islands, etc.)
Besides, I consider geothermal energy, the poor relation of renewable energies as one of the most serious solutions for the energy supply of the future, improvements in drilling techniques should lead quickly (ex: hydrogen drilling torch) allowing drilling at greater depth.
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by Leo Maximus » 06/08/09, 14:24

On the subject of geothermal energy, a video document from BRGM on the geothermal plant of "Bouillante 2":

http://www.geothermie-perspectives.fr/1 ... debit.html

Deep geothermal energy has the disadvantage of causing earthquakes of small amplitude.

Other link on Bouillante 1:

http://www.bouillantesurlenet.com/rubri ... 71063.html
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by parfaitelumiere » 06/08/09, 14:31

thank you for releasing this topic.
I had heard of this earthquake problem.
I wonder if the principle used in the east of France could not be used, to take "only" the heat of the ground, without taking the existing water, or without infiltrating water.
I tell myself that if the heat carrier (water or other) that will seek the heat is in a closed circuit, unless there is a leak, there will be no infiltration into the ground, nor pollution of the liquid used (if the soil is calcareous, the rising liquid must deposit a lot ...)
on the other hand it should not be obvious to realize a thing in closed circuit on 5km of depth ... unless you make a U, and to pass the trick by building it progressively ...
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by Christophe » 06/08/09, 14:55

Yes the Swiss are good at geothermal energy, they even have an agency specially for that I think. Cf: http://www.pac.ch/

On residential CAP CO2, a small comparison from their home: https://www.econologie.com/geothermie-po ... -3900.html

Otherwise in deep geothermal energy, there is an industrial demonstrator in Alsace, read: https://www.econologie.com/forums/geothermie ... t1871.html

It's good but far from being the panacea ... enormous costs and it is an exhaustible resource (the aquifer cools down)
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by Former Oceano » 06/08/09, 14:55

I saw a report on the 5th of a village in Austria whose streets and houses were cracking following the geothermal exploitation of the basement. The ground has risen an inch a month since September 2007 ...

It is the city of Staufen.

Links to articles on this non-isolated disaster:

http://600mots.wordpress.com/2008/12/09 ... eothermie/

http://www.lepoint.fr/actualites-scienc ... 9/0/295623

and here for the Basel earthquakes caused by Géopower (geothermal review)

http://www.geothermie-perspectives.fr/1 ... 1-2008.pdf
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by Leo Maximus » 06/08/09, 15:10

A card from the site http://geothermal.marin.org/ shows the geothermal power plants in operation around the world:

Image

Soultz-sous-Forêt is not listed but it is still experimental, but Bouillante in Guadeloupe is included.

We must not believe that we are ahead of the others, on the contrary we are really late. In Italy there is the Larderello site, soon to be centenary.
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by Woodcutter » 06/08/09, 15:16

Like?
I didn't know this earthquake story at all ... : Shock:

Annoying, that ... :?
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by Christophe » 06/08/09, 15:34

Leo Maximus wrote:A card from the site http://geothermal.marin.org/ shows geothermal power plants in operation around the world


Uh note: are these surface or deep geothermal plants? Because to my knowledge Soultz was one of the 1st demonstrator in the world of deep geothermal energy ...

In other words: the factories in operation may be exploiting hot springs "natural" on the surface and therefore that we did not have to search in depth ... Cf Iceland ...

The technique is therefore not exactly the same ...

To check therefore
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by sen-no-sen » 06/08/09, 16:11

The first deep geothermal experiments were carried out in the United States by the laboratory of Los Alamos in the 70s (who must have the first atomic bomb ..., but also deep geothermal and concentrated solar with Stirling engine, like what!).
The idea of ​​bass was to go and detonate a thermonuclear RRR bomb to generate an underground fracture zone, idea abandoned, fortunately!
Finally, this is where hot dry rock technology was born.
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