ᐅ Costs of a Geothermal Borehole – Is It Worth It in Our Case?
Created on: 1 Dec 2017 14:02
A
arnonymeHello,
I have received a quote for a geothermal drilling. About €21,000 for 260 drilling meters (2 x 130 m (430 feet), water protection area, so the use of antifreeze is not possible), heating load around 8 kW.
Can someone tell me how this quote compares price-wise?
Or whether it is even worth pursuing geothermal energy further?
It seems quite expensive to me, especially when I read that some have paid only €6,000.
Best regards and thanks
Steffen
I have received a quote for a geothermal drilling. About €21,000 for 260 drilling meters (2 x 130 m (430 feet), water protection area, so the use of antifreeze is not possible), heating load around 8 kW.
Can someone tell me how this quote compares price-wise?
Or whether it is even worth pursuing geothermal energy further?
It seems quite expensive to me, especially when I read that some have paid only €6,000.
Best regards and thanks
Steffen
I’ll look up a current offer from my building project for you this evening. There should also be a thread where I broke down an offer from 2012, but it’s a bit difficult to link to using Tapatalk. Just off the top of my head, it seems rather expensive if it’s only for the drilling. I think we are around 11 kW at 12,000 to 14,000. Location is Middle Franconia. More details tonight.
Regards, Stephan
Regards, Stephan
T
toxicmolotof1 Dec 2017 15:20I look through our documents when I have time.
To me, it also seems a) too expensive and b) inefficient.
Where do you want to drill/build?
To me, it also seems a) too expensive and b) inefficient.
Where do you want to drill/build?
@arnonyme
Here is the quote for our inquiry regarding drilling. The heating capacity is 10.5 kW, with 192 meters (630 feet) of drilling divided into 4 x 48 meters (157 feet). The price of 14,600 EUR is in your range, but with a higher heating capacity. The ground-source heat pump would have been a Tecalor TTC10 and would cost an additional 12,500 EUR including installation.
We haven't made a final decision yet, but right now we're leaning towards the air-to-water heat pump, which would cost about 14,500 EUR in total (Alpha Innotec or Novelan). So the pure additional cost would be 12,500 EUR, and after deducting the BAFA subsidies (1,500 EUR for air-to-water heat pumps, 5,000 EUR for ground-source heat pumps), the extra cost for the ground-source heat pump would still be around 9,000 EUR. This is exactly in the range where I neither firmly say "definitely not" nor "definitely yes."
This is partly an issue for us because the air-to-water heat pump would be placed directly in front of the house in the front yard – and honestly, they just don’t look good. One compromise could be an Ochsner unit, but those are also significantly more expensive, eating further into the 9,000 EUR difference. So a nicely “invisible” ground-source heat pump definitely has its appeal, plus the added benefit of cooling comfort in summer... but for a 9,000 EUR extra cost (or 6,000–7,000 EUR in the case of the Ochsner)? Difficult choice...
I hope the quote helps you to better assess your own. Are you very limited on space, or would the location of the air-to-water heat pump be unproblematic?
Best regards,
Stephan
Here is the quote for our inquiry regarding drilling. The heating capacity is 10.5 kW, with 192 meters (630 feet) of drilling divided into 4 x 48 meters (157 feet). The price of 14,600 EUR is in your range, but with a higher heating capacity. The ground-source heat pump would have been a Tecalor TTC10 and would cost an additional 12,500 EUR including installation.
We haven't made a final decision yet, but right now we're leaning towards the air-to-water heat pump, which would cost about 14,500 EUR in total (Alpha Innotec or Novelan). So the pure additional cost would be 12,500 EUR, and after deducting the BAFA subsidies (1,500 EUR for air-to-water heat pumps, 5,000 EUR for ground-source heat pumps), the extra cost for the ground-source heat pump would still be around 9,000 EUR. This is exactly in the range where I neither firmly say "definitely not" nor "definitely yes."
This is partly an issue for us because the air-to-water heat pump would be placed directly in front of the house in the front yard – and honestly, they just don’t look good. One compromise could be an Ochsner unit, but those are also significantly more expensive, eating further into the 9,000 EUR difference. So a nicely “invisible” ground-source heat pump definitely has its appeal, plus the added benefit of cooling comfort in summer... but for a 9,000 EUR extra cost (or 6,000–7,000 EUR in the case of the Ochsner)? Difficult choice...
I hope the quote helps you to better assess your own. Are you very limited on space, or would the location of the air-to-water heat pump be unproblematic?
Best regards,
Stephan
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