Creation of a geothermal energy tempered-water loop installation (BETEG)

Summary

The tender covers the construction of a geothermal energy tempered-water loop serving seven buildings in Montgermont. The works are divided into five lots covering HVAC, geothermal drilling, roads and utilities, suspended ceilings and plastering, and electrical works. The contract is expected to run for 14 months, with a one-month preparation period, and includes environmental obligations and fixed-price work items with price revision according to the applicable formula. Bids must be submitted electronically by 13 October 2026 at 12:00. Site visits are mandatory for lots 1, 3, 4 and 5 and optional for lot 2. Bidders must provide experience references, financial and technical capacity information, quality certificates, the required bid forms, a technical proposal and environmental measures. Variants are not permitted. Offers are assessed using organization at 50%, price at 40%, and technical or environmental value at 10%, depending on the lot.