Type
LTDH
Short description
LTDH utilizing solar panels, heating pump and existing DH for residential heating
Location
Crailsheim
Country
Germany
End users
Multi-family buildings with 260 apartments, a school and gymnasium
Heat source
Solar/Ground/Existing DH
Description
Solar collectors (covering 50% of heating needs), ground HP and existing DH feeds DH network
Cooling
Missing info
Heat source-network connection
HP (ground); Solar collectors; Shunt? (existing DH-Missing info)
Booster HP or no for SH
No
Booster HP, IHEU or DHSU for DHW
IHEU? (Missing info)
TES
Borehole heat storage unit of 37500 m3, corresponding to a storage capacity of approximately 10000 m3 water; 2 water tanks (100 m3 and 480 m3)
Centralized/ Decentralized TES
Centralised
Category
1.3.2.1.1.
Costs/Price [€] (Investment; Operation; Cost for the consumer)
Investment: 8 mil. €; Variable heat price 19 ct/kWh
Tsupply,max [°C] (network)
65
Treturn [°C] (network)
35
Installed capacity [MW]
5.1
Produced heating energy [MWh/year]
3000 (solar collectors)
Heating demand [MWh/year]
Solar collectors cover 50 % of heating needs
Reference 1
https://www.carmen-ev.de/biogene-festbrennstoffe/waermenetze/1966-waermenetze-neu-gedacht
Reference 2
https://www.sciencedirect.com/book/9781782423744/advanced-district-heating-and-cooling-dhc-systems
Reference 3
https://www.solarthermalworld.org/installation/solar-district-heating-crailsheim-seasonal-borehole-storage
Reference 4
http://www.ubcwheel.eu/index.php/gpdp:gpdb/article/2450