France – Electricity, heating, solar and nuclear energy – Reliability of Martigues and Blénod anti-icing heat exchangers

The purpose of the contract concerns the design studies of heat exchanger batteries (including studies to improve the initial design), workshop manufacturing, and on-site work. The exchanger has 16 batteries and its function is to preheat the air upstream of the Combustion Turbine compressor on the Blénod CCGT and on Unit 5 of the Martigues CCGT. The expected services are as follows: 1/ Design of a new exchanger: The Contractor must design a new exchanger according to CODAP or EN standards, incorporating design improvements to guarantee it a lifespan of 25 years and 1,500 hours of annual operation, under normal operating conditions and site ambient conditions. 2/ Workshop manufacturing of exchange batteries and hydraulic testing, pickling and passivation - DESP conformity assessment according to module G: 3/ On-site transport and storage 4/ Removal of old batteries - Installation of new batteries - Participation in leak tests carried out by the site before equipment restart - Performance of functional tests on achieving thermal performance: - Removal of old batteries, - Installation of new batteries, Leak tests aim to validate bolted assemblies. Installation at Blénod will take place during the 2027 unit shutdown, which occurs between May and September. As the next unit shutdowns at Martigues 5 are short shutdowns, the installation of the batteries will be as follows: 4 batteries in 2027, 4 in 2028, 4 in 2029 and 4 in 2030. The 2027 unit shutdown lasts 1 month, in April (only 3 and a half weeks available for the removal of old batteries and the installation of new ones).

Procedure

Negotiated with prior call for competition

Notice type

Contract notice (standard)

Contract nature

Supplies

Legal basis

32014L0025

Common Procurement Vocabulary (CPV)

09300000 — Electricity, heating, solar and nuclear energy

Published

15 March 2026 at 23:00