Type
NTDH
Short description
NTDH utilizing ground heat for residential heating
Location
"Hochvogelstraße" area in Biberach
Country
Germany
End users
45 low-energy houses
Heat source
Ground
Description
Heat pumps (using water-glycol mixture from network, heated by ground)) installed at consumer substation for SH and DHW; For higher temperatures heat pumps can be equipped with additional heat element; Primary loop connected to secondary loop through 2 HPs, secondary loop leads to consumers; possibility of installation IHEU at HP for higher temperatures
Cooling
Yes
Heat source-network connection
HP
Booster HP or no for SH
HP
Booster HP, IHEU or DHSU for DHW
HP
TES
Vertical ground HEX (34 boreholes 200 m depth)
Centralized/ Decentralized TES
Centralized
Category
1.1.1.2.1.
Costs/Price [€] (Investment; Operation; Cost for the consumer)
Investment: 2 mil. € (mostly for explorations and drilling)
Tsource [°C]
12
Tsupply,min [°C] (network)
0
Tsupply,max [°C] (network)
20
Tsupply,max [°C] (at consumer substation)
35
Network length [km] (if not specified-pipes, trench specified)
2.44
Reference 1
https://www.energiezukunft.eu/erneuerbare-energien/waerme/geothermie-kalte-nahwaerme-in-biberach/
Reference 2
https://www.ewa-riss.de/de/Waerme/Waermeversorgung-in-Biberach/Waermeversorgung-in-Biberach.html
Reference 3
https://doi.org/10.1016/j.rser.2018.12.059
Reference 4
https://www.wiesbadener-kurier.de/lokales/wiesbaden/nachrichten-wiesbaden/neue-technik-soll-geplante-hauser-am-biebricher-schlosspark-beheizen_18449052
