3 ms·

There isn’t such a clear line between those two as going slightly deeper for slightly warmer rock makes a big difference when you mostly want heat from that hea

by Retric 2y ago

There isn’t such a clear line between those two as going slightly deeper for slightly warmer rock makes a big difference when you mostly want heat from that heat pump. ~1c per 40m may not sound like much, but it quickly adds up over 50 years.

pfdietz 2y ago
There was a story in the NY Times six months ago about colleges in the US going with geothermal. Many are putting in shallow geothermal to be used with heat pumps (depth ~900 feet), but Cornell has also been looking at true geothermal with an exploratory well to nearly 10,000 feet (bottom temperature was 82 C). https://www.nytimes.com/2024/01/23/climate/geoexchange-climate-colleges-heat.html https://www.nytimes.com/2024/01/23/climate/geoexchange-clima... (may be paywalled)