Production of Geothermal Probes for a Cold Local Heating Tender

• Country: Germany
• Summary: Production of Geothermal Probes for a Cold Local Heating Network
• DET Ref No: 140751101
• Deadline: 03 Jun 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: Refer Document
• Notice Type: Tender
• Document Ref. No.: 310804-2026
• Purchaser's Detail:
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• Description:
• Production of geothermal probes for a cold local heating network A geothermal probe field including a cold local heating network for geothermal heating is to be built in the new development area “Tetendorfer Straße” in Soltau. For this purpose, a probe field consisting of a total of 84 Geothermal probes (EWS), which are sunk to a depth of 150 m, are required. The probes are divided into 6 sections, each with 14 holes, and each is connected to a distribution shaft. In addition, 3 geothermal probes are expected to be required for Temperature measuring points are created. 84 probes are to be installed to supply the new development area “Tetendorfer Straße”. The plan is to install double U-probes with two separate circuits made of PE 100 DA 32 SDR 11. Flow and return flow at the upper end of the probe with a Y-piece, reduced to a PE DA 40 SDR 11 cable. Sinking is done through vertical drilling. In loose rock, auxiliary piping is sometimes required to support the borehole. With a draw weight will The geothermal probe was then inserted into the borehole. The borehole is filled using the contractor method from bottom to top to the ground level (GOK) with a thermally improved bentonite cement suspension (thermal conductivity at least 2 W/(m*K). The drilling must be carried out using two drilling rigs at the same time. Proof of suitability must be provided in accordance with DVGW worksheet W 120-2 for group G200 when the offer is submitted. Analogous to the geothermal probes, the temperature...
• Documents:

 Tender Notice