Table 1 Capacities and temperatures of available heating/cooling sources
From: Smart energy systems for smart city districts: case study Reininghaus District
Source | Max. capacity [MWh/year] | Temperature at source [°C] | Comments |
|---|---|---|---|
Marienhütte Stahlwerk medium temperature industrial waste heat | 18,000 | 78 | Steel plant with upright waste heat input to district heat and additional potential for more input |
Marienhütte Stahlwerk low temperature industrial waste heat | 100,000 | 30 | Steel plant with upright waste heat input to district heat and additional potential for more input |
STAMAG Malzfabrik low temperature industrial waste heat | 1,000 | 22 | Malthouse producing waste heat which may be used for input to heat pumps as well as for cooling |
Linde Gas low temperature industrial waste heat | 33,000 | 22 | Industrial gases firm producing waste heat which may be used for input to heat pumps as well as for cooling |
Cold water well on estates of investor Erber | 8,700 | 10 | May be used for input to heat pumps as well as for cooling |
PV collectors | 1,938 | var. | In competition with solar heat for roof space |
Solar heat collectors | 815 | var. | In competition with PV for roof space |
District heating system of Graz | no limit defined | var. | District heat provided by the existing heating system of Graz |