ᐅ Costs of a Geothermal Borehole – Is It Worth It in Our Case?
Created on: 1 Dec 2017 14:02
A
arnonyme
Hello,
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
ruppsn schrieb:
But it’s not just about heating. “Cooling” in summerCooling is also possible with an air-to-water heat pump, but it is usually not easy to achieve through underfloor heating and requires special construction measures. Using underfloor heating for cooling means the floor becomes the coldest area, which can lead to condensation on the floor—something that is bad for parquet flooring. It can also be uncomfortable for walking.
Joedreck schrieb:
Basic funding starts with a seasonal performance factor of 3.5, and innovation funding from 4.5. Please check carefully againBasic funding is only available for existing buildings. For new constructions, only innovation funding applies.
This means that for new builds, a seasonal performance factor greater than 4.5 must be achieved.
You can roughly calculate your system’s performance online. The numbers were very close to those given by my heating installer. With my Alpha-Innotec system showing good values (A7/W35 3.20 – A2/W35 3.80 – A10/W35 5.10), even by optimizing, I only reach about 4.1 in southern Germany and 4.3 in northern Germany.
Hello
Almost exactly 10 years ago, I paid just under 4,000 euros for the drilling including the piping. Two boreholes were drilled, each about 75 meters (246 feet) deep. The worker who carried out the drilling at that time already told me that such drilling would become much more expensive in the near future. Simply because many people want geothermal heat pumps for heating. And you can charge a lot of money for that.
Steven
Almost exactly 10 years ago, I paid just under 4,000 euros for the drilling including the piping. Two boreholes were drilled, each about 75 meters (246 feet) deep. The worker who carried out the drilling at that time already told me that such drilling would become much more expensive in the near future. Simply because many people want geothermal heat pumps for heating. And you can charge a lot of money for that.
Steven
We requested a deep geothermal borehole with a heat extraction capacity of about 11 kW from one of the more reputable drilling companies here. The cost would have been around €25,000 (about $27,000). In the end, we decided on an air-to-water heat pump for indoor installation instead. This option was €20,000 (about $22,000) cheaper, although it means we can heat for a longer period. We finally installed our fireplace with a water jacket (wood is almost free for us) and are planning a photovoltaic system. I think, in the end, this combination works better for us than the geothermal borehole.
For new builds, subsidies for air-to-water heat pumps are almost impossible to get. Don’t bother trying to find out — I spent days researching it, and it’s not worth it!
For new builds, subsidies for air-to-water heat pumps are almost impossible to get. Don’t bother trying to find out — I spent days researching it, and it’s not worth it!
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