Ww. Curslack; Bau Batteriespeicher - Battery Energy Storage System, BESS (IW-22/01-200-002)

The contract timeline states that the execution is to begin "unverzüglich nach Erteilung des Auftrages" (immediately after the order is placed). The service is to be completed "spätestens am 31.12.2027" (by December 31, 2027, at the latest). The client reserves the right to set specific dates for the start and end of the execution period, as well as any individual deadlines, in the award letter. Specific key milestones or phases with defined dates are not explicitly stated, although "Einzelfristen" (individual deadlines) are mentioned as something that can be set.

The core scope of work for this tender involves the planning, procurement, and installation of a large-scale Battery Energy Storage System (BESS) in Hamburg, utilizing an EPC-light approach. The primary purpose of this BESS is to provide electricity for self-consumption at the Curslack waterworks and for emergency power supply, including uninterrupted transition to island grid operation and black start capability. Additionally, the BESS is intended to allow for flexible participation in energy markets, such as FCR and aFRR, and to optimize revenue on the spot market.

The project specifies a configuration with a connection capacity of approximately 10 MW and a storage capacity of 10 MWh (C-Rate = 1), connected to the waterworks' internal network via 10-kV switchgear.

The statement of work summary includes:

• System Design.
• Delivery of Major Equipment: This encompasses BESS units, including batteries with their housing, inverters with black start capability, relevant SCADA systems, on-site cabling and wiring for the BESS units, MV transformers, and RMUS.
• Commissioning and Testing of the BESS units.
• Defect Notification Period: A two-year period for defect notifications.
• Operation and Maintenance (O&M) Services: These services are required for up to 13 years following the defect notification period.

Tasks explicitly excluded from the scope of delivery are cables from the RMU to the medium-voltage switchgear and foundations.