RegioSpeicher Mosbach - EPC - Engineering, procurement and construction (EPC) of a lithium-ion battery storage facility with 10 MW of active power consumption

CN-SEC-STDContract notice – sectoral directive, standard regime20260713_regiospeicher mosbachTKTrianel Flexibilitätsprojekte GmbH & Co. KGSGStadtwerke Mosbach GmbH
Estimated value
DeadlineExpired24 Aug 2026, 10:00
Competition00 participants
Lots11 lot

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Key information

Contract type
Deadline
24 Aug 2026, 10:00
CPV codes
45317000 - Other electrical installation work45311200 - Electrical fitting work
Status
UNKN
Notice type
CN-SEC-STDContract notice – sectoral directive, standard regime
Estimated value
Publication date
23 Jul 2026, 08:15

Overview

Founded in 1999, Trianel GmbH ("Trianel") is a joint venture of independent municipal utilities based in Aachen. As a Europe-wide municipal utility cooperation, Trianel taps the potential of liberalized energy markets by bundling complementary interests in the municipal environment with the aim of strengthening municipal utilities in their competitiveness and thus their independence. Trianel's shareholders are more than 50 municipal utilities from Germany, Austria, Switzerland and the Netherlands, which together supply around 6 million people with electricity and gas. More than 100 municipal utilities are linked to Trianel via subsidiaries and associated companies as well as partnership agreements. The Trianel Group currently has around 15 subsidiaries and associated companies. The construction services described in this tender are a joint procurement of "Stadtwerke Mosbach GmbH" (municipal utilities) and Trianel Flexibilitätsprojekte GmbH & Co. KG ("TFP"), a subsidiary company of Trianel GmbH. Scope of the project is the engineering, procurement and construction (EPC) of a lithium-ion battery storage facility with 10 MW of active power consumption in Mosbach (Baden-Württemberg). For this purpose, RegioSpeicher Mosbach GmbH & Co. KG, a project company will be established.

Mosbach, 74821, Neckar-Odenwald-Kreis, Germany

#Bekanntmachungs-ID: CXPIYYKYYYV# Variants are subject of the negotiated procedure. The right to exclude variants is reserved.

Preliminary Scope of Work: The project comprises the implementation of a turnkey 10 MW / 20 MWh AC-coupled Battery Energy Storage System (BESS) connected to the public grid via an existing 20 kV grid connection point at an adjacent MV/HV substation in 74821 Mosbach, Germany. At the grid connection point, the storage is supposed to deliver a power of 7.5 to a maximum of 10 MW and have a capacity of 2 to a maximum of 3 hours. The BESS should preferably be based on lithium-ion or sodium-ion battery technology and designed for commercial operation in the German electricity market. The possible lithium-ion technologies will be specified in more detail during the tender. The system is expected to support, among others, participation in Frequency Containment Reserve, Automatic Frequency Restoration Reserve, Day-Ahead and Intraday markets. The project site has already been secured and is currently used as agricultural land. The existing substation is located on the adjacent property, with an estimated cable route of less than 100 m. The site is located within Water Protection Zone III, which requires appropriate consideration of water protection, containment, drainage and environmental requirements. Planning permission for this project has not yet been granted. The project is intended to be tendered as a turnkey EPC project, including engineering, procurement, construction, installation, grid connection interface, testing, commissioning and handover of a fully operational BESS. The tender may also cover related maintenance services, which are subject to a Long-Term Service Agreement (LTSA). The contracting authorities reserve the right to set the term of this LTSA for up to 15 years. The companies have no legal right to conclude an LTSA with a specific term. The final technical requirements, interface definitions, contractual conditions and detailed scope of work will be specified during the subsequent RFP phase. Further information can be found in the procurement documents that will be issued after the conclusion of the participation competition.

Mosbach, 74821, Neckar-Odenwald-Kreis, Germany

1. The application documents (forms) can be downloaded from the link in this notice. The use of the application documents is binding. Should further information or clarifications on the part of the contracting authorities become necessary during the award procedure, this additional information will also be published there. Applicants must therefore regularly check whether further information has been published. A registration for the award platform facilitates access and information to the applicant information. 2. Questions regarding the requirements of this notice and the application documents should be submitted promptly, but no later than the date published on the award platform. The contracting authorities reserve the right not to answer questions received later. 3. The information contained in this notice is solely for the purpose of providing interested companies an impression and enabling them to decide whether to participate in the process. The contracting authorities reserve the right to make deviations and specifications in the course of negotiations. 4. Applications shall be submitted electronically to the contracting authorities via the award platform. Until the expiry of the application deadline, the applications are encrypted so that the contracting authorities have no access to them. However, the applicant is free to edit and re-upload his/her application until the expiration of the deadline. 5. The contracting authorities reserve the right to cancel the procedure for factual reasons, particularly in the event that the relevant planning permission is not granted. Claims for compensation by applicants and bidders are - as far as legally permissible - excluded. By downloading the application documents, the applicant agrees to this. 6. Further procurement documents, including the contract and the award criteria, shall not be issued until after completion of the call for competition. 7. After receipt of the applications and their evaluation, the selected applicants will be sent the award documents with an invitation to the negotiation meetings. The negotiation meetings will be held in Aachen or by video conference. 8. By submitting the application, the applicant undertakes to treat all documents sent to it, if any, as confidential and to maintain the secrecy of the competition in all other respects; this also applies with regard to the respective offer. The contracting authorities, for their part, will use the applicants' documents only for the purposes of the procedure. The tender documents issued during the tender phase contain confidential information. The tender documents will therefore only be issued with invitation to tender to those tenderers who have submitted their application to participate together with a signed copy of the NDA enclosed in the application documents. 9. Applicant consortia must submit a legally binding declaration signed by all members with their application, which is included in the application documents. If, in the course of the procedure, an existing applicant/bidding consortium changes its composition or an individual applicant/bidder wishes to continue the procedure in an applicant/bidding consortium, this shall only be permitted with the express written consent of the contracting authorities. In any case, consent shall not be granted if the change significantly impairs competition or if the change has an impact on expertise and economic performance. This shall apply accordingly to subcontractors. 10. The contracting authorities reserve the right to reduce the number of selected bidders in the course of the negotiation procedure. Further details in this regard are contained in Invitation to Tender, which will be issued upon conclusion of the call for competition. 11. The applicants or bidders are requested to clearly mark on each relevant page those parts of their application or offer which legitimately contain trade or business secrets (Sec. 165 para. 2, 3 GWB). If this is not done, the Chamber for Procurement or the Appeals Body may assume the consent of the respective applicant or bidder to inspection by other parties to the proceedings in the event of a review of the award of contract.

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