General > General Technical Chat
What does drilling a Hole for Water cost here in Europe?
Someone:
--- Quote from: nctnico on March 23, 2022, 08:54:39 am ---
--- Quote from: Someone on March 23, 2022, 06:14:18 am ---
--- Quote from: rstofer on March 22, 2022, 06:55:16 pm ---We produce a TON of electricity from geothermal sources
--- End quote ---
Compared to other sources geothermal is still a tiny tiny speck of US production around 1% of electricity or 0.3% total:
https://www.iea.org/sankey/#?c=United%20States&s=Balance
which is behind the world average of 1.5% of electricity and 0.5% total:
https://www.iea.org/sankey/#?c=World&s=Balance
So yeah, "we" produce a pitiful amount of geothermal energy, and its source/supply is extremely limited compared to alternatives:
https://www.withouthotair.com/c16/page_97.shtml
mW per square meter!
--- End quote ---
Unfortunately that article got the numbers all messed up. https://en.wikipedia.org/wiki/Geothermal_energy says that between 2MW and 10MW can be produced per well.
--- End quote ---
Geothermal energy is not evenly distributed, highly productive wells are the anomalies. Peak power generation is not addressing the energy/lifespan issues of geothermal. A more on topic wikipedia page has the salient quote that although there is power, its uneconomic/impractical to harvest:
--- Quote from: https://en.wikipedia.org/wiki/Geothermal_power ---most of this power is too diffuse (approximately 0.1 W/m2 on average) to be recoverable
--- End quote ---
Low-grade heat has its purposes, but its not a widely exploitable and magic source of useful energy.
langwadt:
--- Quote from: Someone on March 23, 2022, 10:22:56 am ---
--- Quote from: nctnico on March 23, 2022, 08:54:39 am ---
--- Quote from: Someone on March 23, 2022, 06:14:18 am ---
--- Quote from: rstofer on March 22, 2022, 06:55:16 pm ---We produce a TON of electricity from geothermal sources
--- End quote ---
Compared to other sources geothermal is still a tiny tiny speck of US production around 1% of electricity or 0.3% total:
https://www.iea.org/sankey/#?c=United%20States&s=Balance
which is behind the world average of 1.5% of electricity and 0.5% total:
https://www.iea.org/sankey/#?c=World&s=Balance
So yeah, "we" produce a pitiful amount of geothermal energy, and its source/supply is extremely limited compared to alternatives:
https://www.withouthotair.com/c16/page_97.shtml
mW per square meter!
--- End quote ---
Unfortunately that article got the numbers all messed up. https://en.wikipedia.org/wiki/Geothermal_energy says that between 2MW and 10MW can be produced per well.
--- End quote ---
Geothermal energy is not evenly distributed, highly productive wells are the anomalies. Peak power generation is not addressing the energy/lifespan issues of geothermal. A more on topic wikipedia page has the salient quote that although there is power, its uneconomic/impractical to harvest:
--- Quote from: https://en.wikipedia.org/wiki/Geothermal_power ---most of this power is too diffuse (approximately 0.1 W/m2 on average) to be recoverable
--- End quote ---
Low-grade heat has its purposes, but its not a widely exploitable and magic source of useful energy.
--- End quote ---
here there is an office building that uses an old well with too much nitrate for human consumption for cooling in the summer and via a heatpump heating in winter
Someone:
--- Quote from: langwadt on March 23, 2022, 01:03:05 pm ---
--- Quote from: Someone on March 23, 2022, 10:22:56 am ---A more on topic wikipedia page has the salient quote that although there is power, its uneconomic/impractical to harvest:
--- Quote from: https://en.wikipedia.org/wiki/Geothermal_power ---most of this power is too diffuse (approximately 0.1 W/m2 on average) to be recoverable
--- End quote ---
Low-grade heat has its purposes, but its not a widely exploitable and magic source of useful energy.
--- End quote ---
here there is an office building that uses an old well with too much nitrate for human consumption for cooling in the summer and via a heatpump heating in winter
--- End quote ---
Which is (almost certainly) using the ground not as an energy source but as a thermal (energy) storage/"infinite" heatsink, that works great in isolated/sparse areas where the climate annually averages around the "comfortable" indoor temperature. When imbalanced it doesnt last forever and isnt as "infinite" as people think:
https://en.wikipedia.org/wiki/London_Underground_cooling
as a utility/storage method it doesnt scale up to mid-desnity suburbs:
https://www.withouthotair.com/cE/page_302.shtml
Are you going to be the one putting energy in for the other users? a massive free-rider problem on that.
nctnico:
--- Quote from: Someone on March 23, 2022, 10:22:56 am ---
--- Quote from: nctnico on March 23, 2022, 08:54:39 am ---
--- Quote from: Someone on March 23, 2022, 06:14:18 am ---
--- Quote from: rstofer on March 22, 2022, 06:55:16 pm ---We produce a TON of electricity from geothermal sources
--- End quote ---
Compared to other sources geothermal is still a tiny tiny speck of US production around 1% of electricity or 0.3% total:
https://www.iea.org/sankey/#?c=United%20States&s=Balance
which is behind the world average of 1.5% of electricity and 0.5% total:
https://www.iea.org/sankey/#?c=World&s=Balance
So yeah, "we" produce a pitiful amount of geothermal energy, and its source/supply is extremely limited compared to alternatives:
https://www.withouthotair.com/c16/page_97.shtml
mW per square meter!
--- End quote ---
Unfortunately that article got the numbers all messed up. https://en.wikipedia.org/wiki/Geothermal_energy says that between 2MW and 10MW can be produced per well.
--- End quote ---
Geothermal energy is not evenly distributed, highly productive wells are the anomalies. Peak power generation is not addressing the energy/lifespan issues of geothermal. A more on topic wikipedia page has the salient quote that although there is power, its uneconomic/impractical to harvest:
--- Quote from: https://en.wikipedia.org/wiki/Geothermal_power ---most of this power is too diffuse (approximately 0.1 W/m2 on average) to be recoverable
--- End quote ---
--- End quote ---
Again, you are not reading carefull enough: 0.1W/m2 is what is being radiated to the earths surface into space. Which is why you need to drill a deep hole in order to get closer to the core to circumvent the insulation of the earth's crust.
nctnico:
--- Quote from: Lord of nothing on March 23, 2022, 09:27:39 am --- :-+ I would use a Heat exchanger or so.
Sure I would depend what the Mixture is and if the Water is consumable "fresh" out of the Hole.
I dont know if any Values are over the Limit like Sulfure, Lead,... or what ever could come out from the Core of the Earth.
--- End quote ---
Count on the water being non-potable.
--- Quote from: Miyuki on March 23, 2022, 09:36:27 am ---There is an issue with deep drilling. You can cause loss of water in other wells, even kilometers away. By accidentally puncturing some deep layers.
And then you are liable for the losses. You do not want to be in this situation.
--- End quote ---
That is a serious concern indeed. The first thing to find out is whether you can get a permit to drill a well. In some places there are ancient natural water reservoirs that need to remain untouched.
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