Type
NTDH
Short description
NTDH utilizing lake water for administrative buildings heating
Location
Genève-Lac-Nations
Country
Switzerland
End users
Mainly administrative buildings (International organizations), schools and collective housing
Heat source
Lake water/Gas
Description
Pumping station pumps lake water (treated) to costumer substation for free cooling or heating by HPs
Cooling
Yes
Heat source-network connection
Lake water runs through the network
Booster HP or no for SH
HP
Booster HP, IHEU or DHSU for DHW
HP
TES
The network is used as buffer storage in winter when the network operates in a closed loop
Centralized/ Decentralized TES
Centralized
Category
1.6.1.1.1.
Costs/Price [€] (Investment; Operation; Cost for the consumer)
Investment: 30.9 mil. €
Tsource [°C]
11
∆Tsource [°C]
2.5
Tsupply,min [°C] (network)
5
Tsupply,max [°C] (network)
17
Tsupply,min [°C] (at consumer substation)
40
Tsupply,max [°C] (at consumer substation)
45
Treturn [°C] (network)
8.5
SCOP=(reference annual heating demand)/(seasonal electricity consumption for heating) [-]
2.5
SEER=(reference annual cooling demand)/(annual electricity consumption for cooling) [-]
8.8
Installed capacity [MW]
2.9
Heating demand [MWh/year]
5000
Network length [km] (if not specified-pipes, trench specified)
6
Project area [km2]
0.84
LHD (linear heat density)=(total heat demand)/(length of network) [kWh/m/year]
833.333 (calculated from data)
LHPDD (linear heating power demand density)=(installed thermal power capacity)/(network length(pipes)) [kW/m]
0.5
Reference 1
https://pubdb.bfe.admin.ch/de/publication/download/8836
Reference 2
https://thermdis.eawag.ch/static/templates/files/ThermischeNetze_EtudeDeCas_ReseauThermiqueGeneveLacNations.pdf
Reference 3
https://doi.org/10.1016/j.rser.2018.12.059
Reference 4
https://books.google.de/books?id=75eBDwAAQBAJ&pg=PA168&lpg=PA168&dq=anergienetz+geneve+lac+nations&source=bl&ots=_nAf-Sr5jH&sig=ACfU3U353AezV3S-o-qwYc8oh-zIFeYatA&hl=de&sa=X&ved=2ahUKEwi92sONkZPhAhXDI1AKHRVqAi0Q6AEwA3oECAkQAQ#v=onepage&q=anergienetz%20geneve%20lac%20nations&f=false
