Koper, Settlement 15th May Koper
5G network
Facts at one glance
Status of the project:
Commercially operating
Operation mode:
Heating and cooling network
Geothermal source:
Shallow / Ambient Geothermal
Max heat capacity:
< 1MW
Network generation:
5G
Year of operation start:
2012
Contact:
davor.kocjancic@skupina.pro
Description of the project
There are 4 buildings connected to the system, two of which have 23 appartments each, and in each the total area of all appartments is 1846.18 m2 and the total heating area of all apartments is 1644.29 m2. There are 21 apartments and 6 business premises in one building, the total area of all appartments and business premises is 2,127.81 m2, and the total heating area is 1,902.29 m2. One building is only commercial, it has 7 units, and the total area and the total heating area are 2,639.89 m2. For commercial and business premises, the system is used for heating and cooling, and for appartments only for heating.
Highlights of the project
In the summer season when the system is set up to cooling for only the business building, it can produce heating energy for heating up the sanitary water for the appartments in the other 3 buildings. When temperature of sanitary water reaches 55°C,the heated medium is sent to the heat exchangers in the piles so that the 'earth' cools the medium and thus the cycle of gas evaporation continues.
The biggest challenges / obstacles
Because of the position of the geothermal heat pump in the central part of garage in one of the buildings (blocks) of the settlement it is difficult to connect a backup heating/cooling system.
The filters of the geothermal piles need to be continuously checked, to provide enough flow of the medium in the system.
Detailed characteristic of the project
Site description
Address
Ulica 15. maja 19, 19b, 19c and 19d, 6000 Koper, Slovenia
Status of the project
Commercially operating
Year of operation start
2012
Type of geothermal Heating / Cooling network
Heating and cooling network
Type of geothermal technologies involved
Shallow / Ambient Geothermal
Are heat pumps used within this project?
yes - heat pumps to supply the network
Heating network generation
5G
Number of clients supplied
10 - 100
Depth range
32-40
Temperature range
-8 - 55ºC
Involved companies
Planner / installer
KOTA d.o.o.
Types of used geothermal sources
Source
Depth range
Temperature range
Purpose
Soil/rock - closed loop
20 - 400 meters
< 20°C
Heat extraction
Soil/rock - closed loop
20 - 400 meters
< 20°C
Cooling
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
> 90%
Max cooling capacity supplied by geothermal energy
0.2 MW - 1.0 MW
Share of geothermal energy
< 50%
Annual operation hours for heating
< 2000 hours
Annual operation hours for cooling
500 hours - 1500 hours
Annual heating production
< 1 GWh
Annual heating production share
> 90%
Annual cooling production
< 1 GWh
Annual cooling production share
< 50%
Energy conversion factor linked to the use of geothermal energy
< 5
Heat source for peak load supply
Geothermal
Has backup system?
No
Share of fossil fuels for annual gross heat production
I don't know