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A 5GDHC network is a heat network with such a low supply temperature that decentralized heat pumps need to be installed in each building. The supply temperature is usually less than 30 °C.

General information

District name (e.g. 'Waterfront district')*

City (e.g. 'Berlin center')*

Country (z. B. 'Germany')*

Year of (planned) commissioning (e.g. '2018')*

Operator of the network (e.g. 'Public utility Berlin')*

5GDHC network

Network temperatures (supply/return temperature, e.g. '8/16 °C' or '6/12 °C in winter, 28/36 °C in summer' or 'on average: 16 °C')

What type of pipe is used?

Steel pipe (insulated)

Plastic pipe (insulated)

Plastic pipe (uninsulated)

Other:

Network length in meter (e.g. '1700'; estimate if unknown; do not double count parallel supply and return pipes).

Number of supplied buildings (estimate if unknown)

Share of new building area (estimate if unknown; e.g., '100 %' for new buildings only or '0 %' for existing buildings only).

Technologies

Connected heat sources (or storages) for feeding the network

Geothermal probes

Horizontally installed geothermal ground collectors)

Waste water heat

Ground water / wells

River water

Lake or sea water

Ambient air (e.g. air-source heat pump)

District heating return flow

Solar thermal collectors

PVT collectors

Ice storage (frozen water)

Earth ice storage (frozen earth)

Deep geothermal energy (> 1000 m)

Combined heat and power plant (CHP)

Boiler (e.g. natural gas/biogas)

Biomass (CHP or boiler)

Waste heat (industry)

Waste heat (data center)

Waste heat (supermarket)

Waste heat (shopping center)

Other:

Waste heat (power plant / combined heat and power plant)

Thermal power of energy center or central heat source(s) (for example heat extraction capacity of geothermal field) in kW (estimate if unknown)

Does the network supply cooling energy as well (e.g. for air conditioning)?

Yes

Evaluation and price model

Primary energy factor of the heat supply (if known)

Is there a compulsory connection to the heating network for buildings in the district?

Yes

Who owns the heat pumps in the buildings?

Home/building owner

Heat network operator

Varies from building to building

Other:

Where is the system boundary for billing delivered heat?

Heat at the evaporator of the heat pump (network side)

Heat at the condenser of the heat pump (building side)

Other:

Billing models (skip if inapplicable)

	Connection fee (€)	Base price (€/year)	Energy price (€/kWh)	Capacity price (€/kW)	Free of charge
Heat supply
Cold supply

If previous question is not applicable: Brief description of the billing model (if known)

Are there buildings that receive compensation for feeding waste heat into the network (e.g. industrial sites, data centers, etc.)?

Yes

From your point of view, are there any regulations or legal provisions that represent an obstacle for 5GDHC networks in your country?

Additional information

Personal data (optional)

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Last name

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Survey of districts with 5GDHC networks

General information

5GDHC network

Technologies

Evaluation and price model

Personal data (optional)

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