Lieferung und Montage Netzersatzanlage KA Ostfildern

The contract timeline is as follows:

• Tender Deadline: The deadline for submitting bids is November 3, 2026, at 11:00 AM.
• Binding Period End: The binding period for bids ends on December 4, 2026.
• Contract Start Date (Execution Start): The execution of the contract is to begin on December 7, 2026.
• Completion Deadline: The work must be completed and ready for acceptance by June 30, 2027.
• Total Duration: From the start date of December 7, 2026, to the completion date of June 30, 2027, the total duration is approximately 6 months and 23 days.
• Key Milestones/Phases:
• Delivery of foundation plan and installation drawings: Approximately 8 weeks after the contract is awarded.
• Maintenance Contract: Testing by the manufacturer is to be conducted at a maximum of 300 operating hours or at the latest after one year.

The core scope of work for this tender involves the "Neubau Netzersatzanlage" (New Emergency Power System) at the Kläranlage Ostfildern (Nellingen) facility. The primary service is the "Lieferung und Montage Netzersatzanlage KEV 150" (Delivery and Installation of the Emergency Power System KEV 150).

A high-level summary of the Statement of Work and core deliverables includes:

• Delivery and Installation: Providing, setting up, assembling, and operationally connecting the complete functional emergency power system, including all necessary transport, substructure, and assembly materials.
• Commissioning and Training: On-site commissioning at the Kläranlage Ostfildern-Nellingen, involving all required switching operations, and instructing operating personnel by a service technician.
• System Components: Implementation of the system with a fuel pump combination, featuring an electric pump, hand pump, overflow protection, and associated fuel lines.
• Quality Assurance: Conducting a factory acceptance test (with the client present) at the manufacturer's facility, including load tests at various levels.
• Documentation: Supplying a foundation plan and detailed installation/setup drawings (plan view, side views, detail plans, container views) for the entire emergency power system approximately eight weeks post-contract award.
• Maintenance and Inspections: Establishing a maintenance contract for the diesel power supply unit, which mandates an annual inspection (or after a maximum of 300 operating hours) by the manufacturer. This includes travel, labor, documentation, and specific maintenance tasks for both mechanical and electrical components. Additionally, an annual system inspection according to DGUV Vorschrift 3 and DIN VDE 0100 Part 600 is required, encompassing visual checks, functional tests, measurements (e.g., protective earth resistance, insulation resistance), and the provision of an inspection report.
• Software and Integration: Delivering software for the aggregate control unit to transmit commands, operational status, fault messages, measurements, setpoints, actual values, and counter values to the higher-level SPS/process control system (FlowChief) via Modbus-TCP/IP protocol. This involves coordinating with the bus coupling and PLS connection contractor and detailing all data points.
• Data Point Testing: Commissioning and testing all digital and analog inputs/outputs within the aggregate control unit individually, in collaboration with the SPS/PLS programmer, with all tested data points to be logged.
• Communication Gateway: Providing and installing a Profinet to Modbus TCP gateway for the control cabinet to ensure seamless data exchange between the two SPS systems, complete with necessary software and cabling.
• Regulatory Compliance: Preparing and submitting all official documents related to the emergency power system, covering contract creation, commissioning, certification, and registration for grid-parallel operation, through to final approval. This includes, but is not limited to, grid connection applications, commissioning protocols, data sheets, network feedback reports, safety device descriptions, and unit certificates.
• Environmental Monitoring: Supplying and installing an active room temperature sensor (PT 100) for wall or ceiling mounting, with a 4 to 20 mA output.