Stream I
District Heating, Cooling and Power Network
Kirchanschöring has an installed network providing heating and power to consumers in the Municipality. Operated by two local companies, these networks are being expanded to accommodate energy demand growth and provide energy to new industrial facilities.
Network by Energieversorgung Schmid
EVU-Schmid is the distribution network operator with network levels 5 (medium voltage 20.000 V), 6 (conversion from medium to low voltage 20.000 V / 400 V) and 7 (low voltage, 400 V / 230 V).
In 2019 EVU-Schmid constructed the power supply for the Ruperti II geothermal drilling site and in 2020 the planned development of the geothermal construction site required a 5 MWe connection capacity provided by EVU-Schmid.
Image: EVU-Schmid
Biomass heat supply area by Niedermayer GmbH
Niedermayer is a family-owned local heat and power operator with a biomass plant that’s been in operation since 1999.
The current output capacity of the biomass plant is 3.1 MWt with peak load supply provided by a 2.1MWt oil boiler. The system is supported by PV system capacity 57 kWp.
The biomass plant lies on the southern edge of Kirchanschöring with the current output for the connected heat consumers is currently around 2.4 MWt.
There are three biomass plants generatung 850MWh of electricity per year, representing one-third of the biomass plants' energy production.
The remaining two-thirds are process waste heat and heat for building heating in Kirchanschöring.
Image Niedermayer GmbH
Deep Borehole Heat Exchangers (DBHE)
Drilling by GTR was able to measure temperatures in excess of 150 degrees Centigrade in the Malm reservoir.
This was a higher temperature than was expected in the pre-drill assessments.
Recent developments in closed loop co-axial Downhole Borehole Heat Exchangers (DBHE) will provide the potential to deliver heated fluids to surface that can be connected to the district heating network via a 1km long pipeline to the Kirchanschöring biomass facility.
Engineering studies will be undertaken to show that the KIR-GT2 borehole can be safely re-entered and can be completed with a DBHE and insulated tubulars.
GTR has retained Sproule-ERCE to undertake a Feasibility Study assessment to determine the DBHE potential.
Image Illustrative single coaxial Downhole Borehole Heat Exchanger (from Sun et al 2019).