Energy carrier conversion ETU - TGA planning for lots 1 and 2 2026 Tender
Original: Energieträgerumstellung ETU - TGA Planung für Los 1 und 2
WBM Wohnungsbaugesellschaft Berlin-Mitte mbH
In context
This is a contract notice published by a government body covering services. Bids are invited through an open procedure. Delivery covers Germany (Europe). It is classified under Heating and Cooling, Energy Efficiency and Engineering and Infrastructure against the sustainability taxonomy rather than matched on keywords.
Planning and engineering services for conversion of gas heating to district heating in Berlin residential buildings (2027–2029), including site surveys, system design, hydraulic balancing, and station retrofits across two planning zones. Bidders must be qualified MEP/TGA planning firms with experience in district-heating system design and building retrofit engineering.
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About this tender
The Contracting Authority, WBM Wohnungsbaugesellschaft Berlin-Mitte mbH, is procuring planning services for an energy-carrier conversion (Energieträgerumstellung ETU) in the technical building services (TGA) area, under tender reference 2026-0212, for Lots 1 and 2. In the properties of WBM, WBF and BEWOGE, heating supply is to be switched from gas to district heating (Fernwärme) in the years 2027, 2028 and 2029. The required work includes planning and construction measures such as a survey of the existing buildings, planning of the new installations, possible conversions at the substations (Stationen), hydraulic balancing (hydraulischer Abgleich), and related services. Only the first service stage (erste Leistungsstufe) for services from 2027 onward will be awarded with the contract. Further details are in the tender documents, which were not available on the listing page. Execution period: 15.01.2027 to 30.09.2029. The procedure is an open procedure under VgV, and the tender is subdivided into lots.
Key requirements
- ✓Existing-building survey and documentation of gas heating systems in WBM, WBF, BEWOGE properties
- ✓Design of district-heating connection systems, station retrofits, and hydraulic balancing
- ✓Planning split into two geographic zones (Plangebiet A and B) with separate cost estimates (€1.56M and €2.49M net)
- ✓Initial phase (Leistungsstufe 1) awarded; further phases contingent on 2027–2029 implementation schedule
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How this compares
- Compared with 1391 similar tenders (heating / cooling in Germany) listed in the last 12 months.
- Similar tenders that state a value range from $33k to $80m, with a median of $746k (87 tenders).
- It allows 29 days to respond, shorter than the typical 31 days across 879 similar tenders.
- This is the only similar tender from this organisation listed here in the last 12 months.
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About this sector
Heating and cooling funding supports heat pumps, district heating, thermal networks, efficient cooling and the removal of fossil boilers. It arrives through national support schemes, local authority programmes and procurement for heat networks. Applicants typically need heat demand assessments, a connection plan and an operator for the system.
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