A local initiative for thermonet at Spaettevej, Barmer, DK
5G network
Picture credits: Søren Skjold Andersen
Facts at one glance
Status of the project:
Commercially operating
Operation mode:
Heating network
Geothermal source:
Shallow / Ambient Geothermal
Max heat capacity:
< 1MW
Network generation:
5G
Year of operation start:
2012
Contact:
kontakt@termonet.dk
Description of the project
The thermonet was established approximately 10 years ago, and supplies six households. The thermonet was chosen, among other reasons, to avoid excavation and construction work on each individual property, as with individual geothermal heating solutions. The local initiator had a field available for the thermonet to be located in.
The horizontal pipes are placed on the field, and runs into the road and distributes to the six consumers, whose heat pumps are connected to the thermonet through branch pipes. Each household has their own individual heat pump of 10 kW, which delivers the total heat supply to the buildings. It is the responsibility of each household to have authorized service of the heat pumps once a year.
The thermonet is only providing heat for the houses, not cooling.
Highlights of the project
When the thermonet was proposed, the positive interest of the residents on Spættevej towards the thermonet, is thought to have been due to the local initiative and communal interesets og the planning.
The biggest challenges / obstacles
On the basis of this case, it is recommeneded for other projects, to have a clear agreement of whom has the responsibilities of operation and service of the thermonet. Also there is financial benefits from having a collective service agreement, rather than individual.
Detailed characteristic of the project
Site description
Address
Spættevej, 9240 Barmer Nibe, Denmark
Status of the project
Commercially operating
Year of operation start
2012
Type of geothermal Heating / Cooling network
Heating network
Type of geothermal technologies involved
Shallow / Ambient Geothermal
Are heat pumps used within this project?
yes - located at the clients
Heating network generation
5G
Number of clients supplied
< 10
Depth range
1
Types of used geothermal sources
Source
Depth range
Temperature range
Purpose
Soil/rock - closed loop
< 20 meters
< 20°C
Heat extraction
System design
Heat sources included in the network
Monovalent - geothermal energy is the only heat source
Max heating capacity supplied by geothermal energy
< 1MW
Share of geothermal energy
60% - 70%
Annual operation hours for heating
2000 hours - 4000 hours
Annual heating production
< 1 GWh
Annual heating production share
60% - 70%
Energy conversion factor linked to the use of geothermal energy
< 5
Heat source for peak load supply
Geothermal
Has backup system?
Yes
Backup system
Electricity
Share of fossil fuels for annual gross heat production
0 %