Published
Création d'une chaufferie biomasse et de son réseau de chaleur urbain sur la commune de Loir-en-Vallée (72340)
Notice number: 26-101031
KEY INFORMATION
- Submission deadline
- • Nov 17, 2026
- Location
- 🇫🇷 France
- Contracting authority
- Commune de Loir en Vallée
- Accepted Languages
- French
- Tender type
- Works
- Contract Value
- Published date
- Oct 16, 2026
TENDER DESCRIPTION
This tender seeks a contractor for the comprehensive creation of a biomass heating plant and its urban district heating network in Loir-en-Vallée (72310). The scope of work includes extensive preparatory activities, civil engineering for the boiler room (foundations, concrete structures, exterior utilities), hydraulic system design and implementation, and the complete realization of the urban heating network, encompassing earthworks, laying, welding, sleeving, backfilling, and the installation of all necessary chambers and accessories. Deliverables also include detailed documentation, user training, and full commissioning, with an overall execution period of 315 calendar days and critical milestones such as works completion by October 29, 2027, industrial commissioning by November 1, 2027, and first subscriber invoicing by December 15, 2027. Technical specifications require adherence to DWG, DOCX, and XLSX file formats, Lambert CC48 and NGF-IGN69 geographic reference systems, and utilization of an Electronic Document Management Platform. Candidates are required to demonstrate sufficient financial capacity.
TENDER BRIEF
The contract timeline is as follows:
- Contract Start Date: The market for each lot takes effect on its notification date. The preparation period and execution period start from the date of the corresponding service order.
- Total Duration: The global execution period for the services is 315 calendar days.
- Key Milestones/Phases:
- Detailed execution planning to be submitted within the period specified in the CCAP, starting from the service order for commencement.
- Installations completed, connected, and available for testing.
- Installations functional and free of blocking reservations.
- End of works permitting commissioning: October 29, 2027.
- Industrial commissioning and startup: November 1, 2027.
- Issuance of the first invoice to a subscriber: December 15, 2027.
- The period of preparation and the overall execution period are according to the contractual calendar.
- Critical milestones and tasks for each lot: Full respect of applicable deadlines for the lot.
- Commissioning: According to the contractual calendar.
Sources
- 14-58-0465_ART_COO_DCE_AP_062_B_CCAP.pdf — “documents portent un indice, une date, un statut et une identification univoques. Les versions remplacées sont identifiées comme obsolètes et retirées des espaces de travail. L'ensemble des transmissions, observations, r…”
- 24-58-0465_ART_COO_DCE_AE_063_B_Acte d'Engagement.docx — “en toutes lettres, le montant en toutes lettres prévaut. Désignation | Montant à compléter Prix global et forfaitaire HT | […] € HT TVA au taux de […] % | […] € Prix global et forfaitaire TTC | […] € TTC Montant TTC en t…”
The core scope of work for this tender is the construction of a biomass boiler room and its urban heating network in the municipality of Loir-en-Vallée (72310).
The Statement of Work (SOW) summary and core deliverables include:
- Preparatory works and site installations: This encompasses defining site needs (transport, cranes, electricity), access, signage, temporary site security, establishing site living quarters, managing utilities and temporary connections, and waste management.
- Building and Civil Engineering (LOT 4): This lot involves defining and realizing concrete bases, building massifs, cuvelage (tanking) under the hopper, door seals, parcel demarcation, exterior water supply network (AEP), exterior electrical connections for the boiler room up to an interface point inside the building, temporary roads, and the "Dossier d'Interventions Ultérieures sur l'Ouvrage (DIUO)". It also includes general structural studies and foundation works, taking into account load descents from other lots.
- Hydraulics (LOT 3): This includes studies, engineering, functional analysis of the installation, PID (Piping and Instrumentation Diagram), I/O lists, and detailed execution studies for the hydraulic process.
- Urban Heating Network (RCU) (LOT 5): This covers the supply, installation, connection, and commissioning of surveillance lines, boxes, and accessories, ensuring continuity and looping at each sub-station. It also involves preliminary investigations, coring, sheathing, backfilling, sealing, insulation, and supports up to connection points. Further, it includes the complete realization of the RCU, including earthworks, accessibility for welders/sleevers, laying, welding, sleeving, backfilling, reflections, and surveying. Diversion of concessionaire networks, maintenance in service, and validation before backfilling are also part of this lot. This lot also dimensiones, supplies, installs, and connects valve chambers, purge/drainage chambers, and prefabricated chambers with their sealing and finishes.
- Documentation, Training, and Commissioning: General deliverables across lots include the definition of needs, choice of materials, supply, connection, validation, and realization. Specific to LOT 5, this involves documentation, user training, and commissioning, along with welding controls, rinsing, pressure tests, filtration, and water quality testing.
- Reservations: Execution of concrete reservations before pouring for various systems (reservations, ventilation, smoke extraction) based on needs defined by other lots.
Sources
- 14-58-465_ART_COO_DCE_DG_060_A_Chemin de Croix.pdf — “4-exécute les réservations en beton avant coulage (Prise en compte plans EXE bâtiment) 415 4.15 | Socies belan, mamus et manes d'impiantation des équipements procem Massif beton du füt porteur de chaque cheminée, ancrage…”
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Unlock tender brief for freeTENDER DOCUMENTS
DIRECTORY • 18 FILES
- AWS-MPI-1890725-LOT-2.zip32.8 MBZIP
- AWS-MPI-1890725-LOT-4.zip7.5 MBZIP
- AWS-MPI-1890725-LOT-5.zip88.0 MBZIP
and 11 other documents
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