The world’s first Eavor-Loop™ for heat and power is under construction in Germany. - A new ball game

[cmoreride]

Not you Grand Dad's Geothermal
In Geretsried, Germany, Eavor™ is writing the next chapter of the energy transition. The Eavor-Loop™ is a
closed-loop geothermal system
where a benign working fluid circulates in an industrial-sized, underground heat exchanger
without the need for a pumping system.

https://eavor-geretsried.de/en/inno...n-mit-meisselweihe-im-bayerischen-geretsried/

 

[LittleInch]

I suspect the closed loop will need a pump to circulate the liquid??

How else did it work?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[SnTMan]

Another Press Release, even less comprehensible than usual.

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[Tmoose]

Reportedly in early 2021 BP and Chevron forked over 40 million US bux to the Canadian startup.

https://newatlas.com/energy/bp-chevron-eavor-geothermal-loop/

"Low-enthalpy geothermal projects ... lose between 50-80 percent of the power they generate in the task of pumping the water up and down."

I wonder how leak-proof drilled holes 1-3 miles below the surface are.

 

[TugboatEng]

Rock doesn't have very good thermal conductivity. I guess pumping the fluid reduces some of the problems related to quenching but it doesn't do anything to improve the heat transfer rate through the insulating rock.

 

[CWB1]

I'm waiting for the greenies to worry over the impact of geothermal cooling of the planet. I can see them arguing "atmospheric heating" and "planetary cooling" simultaneously.

 

[GregLocock]

And if you were wondering why they built it in Germany, it will be subsidised at the eye watering rate of €227/MWh

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376

http://eng-tips.com/market.cfm?

 

[LittleInch]

Ah, OK its a thermo syphon.

Looks to be very expensive though and can't see the flowrate and energy per drilled hole being very high compared to the cost of doing so.

Also doesn't say what the temperature difference is or flow rates or anything much really.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[waross]

I spent some wasted time on the Eavor web site looking in vain for any details.
The information presentation reminded my of a Ginzu Knife sales pitch.
Undisclosed working fluid.
Undisclosed borehole lining method.
Undisclosed energy extraction method.

--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[SnTMan]

Profit!

LOL

The problem with sloppy work is that the supply FAR EXCEEDS the demand