Lieferung und Montage einer Photovoltaikanlage mit Batteriespeicher für die Kreissporthalle Tübingen

The contract timeline is as follows:

• Contract start date (Ausführungsbeginn): September 28, 2026.
• Contract end date (Fertigstellung): December 4, 2026, by which the service must be completed and ready for acceptance.
• Total duration: Not explicitly stated as a single value, but can be calculated from the start and end dates.
• Key milestones/phases:
• The contractor is required to prepare a construction schedule (Baufristenplan) to ensure and monitor adherence to contractual deadlines. This plan must be submitted to the client no later than 7 working days after the contract is awarded.
• A maintenance contract (Wartungsvertrag) will commence upon the defect-free acceptance of the photovoltaic system. The maintenance costs are to be specified for each year up to and including the fifth year within the warranty period.

The core scope of work for this tender involves the "Herstellen einer PV Anlage" (construction of a PV system) on an existing building, which includes the delivery, assembly, and commissioning of the PV system itself, along with its substructure and fall protection. Additionally, the project requires the installation and commissioning of a battery storage system.

The statement of work summary encompasses the following key areas and deliverables:

• PV Modules and Substructure: Provision and installation of PV modules and their supporting substructure.
• Electrical Components: Supply and installation of inverters, module optimizers, AC/DC cabling, and cable routing infrastructure.
• Safety Measures: Implementation of fall protection systems.
• Battery Storage: Installation and commissioning of the battery storage system.
• Grid Connection: Connection to the existing main distribution board, including technical review, planning by an engineering office, grid connection inquiry, technical coordination with the grid operator, submission of all necessary documents, registration of the PV system, final measurements, and documentation. This also includes the provision of a metering and feed-in cabinet.
• Monitoring System & Dashboard: Implementation of a neutral energy monitoring system with a dashboard connection. This system must be capable of displaying generation plants across different manufacturers and locations. Key functionalities include alarms and email notifications, weekly or monthly reports, API connectivity, data export (XLS/CSV), unlimited users, multi-site accounts, real-time consumption and production data (KWh and Euro), 5-second real-time energy data, 60-second resolution historical data, and specific visualization for feed-in data.
• Potential Equalization: Implementation of potential equalization as per relevant VDE standards.
• Documentation, Testing, and Registration: Comprehensive documentation including proper labeling, overview wiring diagrams, inverter operation details, system diagrams, technical datasheets, module arrangement plans, acceptance and commissioning protocols, submitted in both paper and digital formats. Testing before commissioning according to VDE 0100-600 and DIN VDE 0100-712 / DIN VDE 0126-23 / DIN VDE 0105-100 standards is required. Registration and final notification to the grid operator are also part of this scope.
• Planning and Project Management: This includes module assembly and planning, travel costs, accessories, specific considerations for module field interruption, module assembly on a green roof with south-facing elevation, additional effort for high eave heights, a basic flat rate for PV assembly up to 100 kWp, cable routing plans, roof supervision schema, switchgear plans, battery planning and installation, provision of scaffolding for work safety, creation of a distribution plan, and a construction schedule.
• Construction Site Setup: Provision of all necessary lifting equipment (e.g., cranes) for installing the system, specifically for lowering the battery storage into a designated pit, and ensuring all occupational safety systems are in place.
• Maintenance Contract: An optional maintenance contract for the PV system and battery storage, covering costs up to the 5th year within the warranty period. This includes inspections according to VDE 0105-100, monitoring, logging, string measurements, inverter control (checking for contamination, connections, voltage drop), meter system checks, and inspection/maintenance of the battery storage and inverter as per manufacturer guidelines.