Apply for a water authority permit for the use of geothermal energy by means of geothermal probes, geothermal collectors, groundwater heat pumps and other systems

• Professional planning and correct sizing of Erdwärmeanlagen (ground-source heat pump systems) • For Erdwärmeanlagen with a heating capacity of more than 30 kW, a so-called Geothermal Response Test is additionally required service.berlin.de/dienstleistung/351507/ • Compliance with distance regulations • Positive site assessment • The construction of Erdwärmeanlagen must comply with the state of the art.

• Application for a water authority permit (wasserbehördliche Erlaubnis) for the use of geothermal energy by means of geothermal probes, geothermal collectors, groundwater heat pumps or other systems Submit the application in writing by post or by email and submit all the necessary documents. • Overview map and site plan Overview plan showing the location of the property at a scale of 1:5,000 and a dimensioned site plan showing the planned locations of the geothermal probes and the associated pipework, at a scale of 1:200. • Map excerpt from the Umweltatlas (environmental atlas) www.berlin.de/umweltatlas/wasser/geothermisches-potenzial/fo Map excerpt from the Umweltatlas showing the specific extraction capacity for the planned drilling depth at 1,800 annual operating hours (heating without hot water) or 2,400 annual operating hours (heating with hot water), which was used for the preliminary sizing of the system. • Calculation of the required probe length or size of geothermal collectors based on the specific data from the Umweltatlas • Technical description Technical description of the planned geothermal system with details of the planned drilling depth or laying depth and the planned construction. • Safety data sheet for the heat transfer fluid • Heat demand calculation for the building; for new buildings in accordance with DIN EN 12831 (standard heating load calculation) • Specification of the substances to be introduced into the groundwater during drilling and the planned quantities (including drilling fluid additives and backfill material) • Proof of the engagement of a drilling company certified in accordance with DVGW Code of Practice W 120 (DVGW-Arbeitsblatt W 120) • Proof of the increased frost resistance of the backfill material • For systems with a heating capacity >50 kW (in individual cases >30 kW heating capacity): thermo-hydrodynamic simulation Submission of the results of the thermo-hydrodynamic simulation in accordance with condition 3.5 et seq. of the water law permit (wasserrechtliche Erlaubnis) for the GRT • If represented by a third party: Bauherrenvollmacht (client's power of attorney) • Bauherrenvollmacht (client's power of attorney) stating the fee debtor (Gebührenschuldner), if the application is not submitted by that person themselves. • For a GbR (partnership under civil law), a natural or legal person with an address for service (ladungsfähige Anschrift) must be named as representative and fee payer (supplementary form to the application form).

• Application for the granting of a water authority permit for the use of geothermal energy www.berlin.de/sen/uvk/_assets/umweltschutz/service/formulare • Application / notification for a well www.berlin.de/sen/uvk/_assets/umweltschutz/service/formulare

• 350.00 euros per geothermal system up to 30 kW (closed systems such as probes, collectors, thermally activated building components, other closed systems) • 350.00 euros per geothermal system from 30 kW (closed systems such as probes, collectors, thermally activated building components, other closed systems) plus 400.00 euros for each additional 50 kW • 500.00 euros per geothermal system up to 30 kW (open systems, water/water geothermal systems, groundwater circulation systems) • 350.00 euros per geothermal system from 30 kW (open systems, water/water geothermal systems, groundwater circulation systems) plus 400.00 euros for each additional 50 KW • plus 0.025 x the costs per well, at least 150.00 € per well for the discharge or extraction of groundwater and thermal use

• Wasserhaushaltsgesetz (WHG, Federal Water Act) § 8 para. 1, § 9 para. 2, No. 2, § 49 para. 1, sentence 2 www.gesetze-im-internet.de/whg_2009/ • Berliner Wassergesetz (BWG, Berlin Water Act) <https://gesetze.berlin.de/jportal/?quelle=jlink&query=WasG+BE&psml=bsbeprod.psml&max=true> • Abwasserverordnung (AbwV, Wastewater Ordinance) www.gesetze-im-internet.de/abwv/ • Grundwasserverordnung (GrwV, Groundwater Ordinance) www.gesetze-im-internet.de/grwv_2010/ • Indirekteinleiterverordnung (IndV, Indirect Discharge Ordinance) <https://gesetze.berlin.de/jportal/?quelle=jlink&query=AbwAnlV+BE&psml=bsbeprod.psml&max=true> • Umweltschutzgebührenordnung (UGebO, Environmental Protection Fees Ordinance) Tarifstellen [tariff items] 5044 e), 5046 b), 5044 f) gesetze.berlin.de/perma?d=jlr-UmwGebVBEV12Anlage

3-4 months depending on the complexity of the application

• Information sheet on the use of geothermal energy in Berlin (Senatsverwaltung für Mobilität, Verkehr, Klimaschutz und Umwelt [Senate Department for Mobility, Transport, Climate Protection and the Environment]) www.berlin.de/sen/uvk/_assets/umwelt/wasser-und-geologie/pub • Further information on groundwater use (Senatsverwaltung für Mobilität, Verkehr, Klimaschutz und Umwelt) www.berlin.de/sen/uvk/umwelt/wasser-und-geologie/grundwasser