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. Founded in 2018, Trianel Energieprojekte GmbH & Co. KG ("TEP"), as a wholly owned subsidiary, consolidates Trianel GmbH"s project development activities in the areas of onshore wind and photovoltaics. The subject of this tender is a framework agreement with up to partners as suitable suppliers for the supply of the core components consisting in particular of battery storage, battery inverter, transformer station and battery management system (BMS) and power plant controller. The actual demand-or the scale of the framework agreements to be awarded-is difficult to forecast, particularly due to the unpredictability of the required battery storage capacity. Based on the estimated demand volumes, the total volume under the framework agreement is estimated to be approximately 8 GWh over the contract term of up to eight years. The maximum volume applicable under the framework agreement is 10 GWh.Hovedtrekkene i prosedyren1. During the bidding phase (following the conclusion of the prequalification process), bidders are required to provide cost estimates for two specific projects. TEP intends to award these specific projects directly to the best bidder(s) upon awarding the framework agreement. However, TEP also reserves the right not to award the projects to be costed, but rather to use them solely as a basis for selection when awarding up to six framework agreements, based on the award criteria. Consequently, there is no entitlement to be awarded a contract. Details on this are contained in the bidding documents, which will be issued after the pre-qualification process is completed. 2. TEP will tacitly agree with the bidders selected following the conclusion of the competitive bidding process to mutually shorten the bid submission period to fewer than 25 calendar days. 3, 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 (Confidentiality Agreement) enclosed in the application documents.