Waste Heat (Low Temperature)

The waste heat (low temperature) technology is a technology that supplies low temperature waste heat to the district heating system. The amount of waste heat available is defined using a timeseries supplied to the technology. The waste heat is not directly usable as useful heat but must be converted to useful heat using a heat pump central plant (low temperature) first. A typical example for such a waste heat ressource could be a datacentre or other cooling equipment.

Attribute	Description	Standard value	Unit	Data type
deployment	If set to ‘true’, the technology will be considered in the energy system model (this does not necessarily mean it will be used). Only relevant for optimisation.	False	—	bool
capex	CAPEX cost of technology per unit of capacity.	0	CHF/kW	float
maintenance_cost	OPEX cost of technology per unit of capacity.	0	CHF/kW/year	float
lifetime	Expected lifetime of technology before replacement is required.	25	years	int
timeseries_file_path	Path to file with waste heat timeseries (in kWh/h)	‘’	—	str
co2_intensity	Carbon-dioxide intensity of technology output (annual average value).	0	kg CO2/kWh	float
tariff_CHFpkWh	Cost of waste heat	0.01	CHF/kWh	float
interest_rate	Interest rate for computing levelised costs (if required).	0.025	—	float

The relationship between the in- and outflows is given by

\[\mathtt{v\_hlt\_whlt} \leq \mathtt{v\_hlt\_resource\_whlt}\]

The symbols and names of the flows are

v_hlt_whlt

Outflow Heat (Low Temperature)