Norske Skog, Veolia and Pearl Infrastructure Capital have jointly launched an industrial ecology project at the Norske Skog Golbey paper mill site. Eiffage Construction will carry out the project by building a biomass power plant that will contribute to the decarbonisation of the industrial activity and reduce Norske Skog's dependence on natural gas. This biomass cogeneration unit, using recycled wood, will be the largest of its kind in France. From 2024 onwards, it will produce 200 GWh of clean electricity per year, equivalent to the consumption of more than 13,000 homes, as well as 700 GWh of heat.
The mission of our Nord-Est Eiffage Construction teams is to build the largest biomass cogeneration unit in France. This unit will enable paper manufacturer Norske Skog to decarbonise its industrial activity and produce heat for its site, as well as 200 gigawatts of electricity per year, which will be fed back into the national power grid, enough to supply the equivalent of 13,000 homes.
The works to be carried out by our teams are the Turbo Alternator building, the silos and the 45-metre high wood boiler.
More specifically, this involves:
- The wood-fired boiler: deep foundations (52 u), piles/heads, anchor plates, networks under paving, gutters and paving (750m²). It will house a metal structure and a process over 45m high;
- The Turbine building (Turbo Alternator Group): 17.4m high walls, 55 cm thick, cast in BAP. 4m pit, 6 turbine support posts and 5.4m concrete floor. This building will house the turbine which will convert the steam into electricity;
- The administrative and technical building: 3 storey building made of pre-cast concrete slabs. The administrative and technical building: a building of 3 storeys in prefabricated walls and slabs, containing the transformers, the electrical rooms and the administrative rooms;
- The smoke treatment area: inverters, foundations, generalized paving with anchoring plates for machine support, chimney, filters;
- 2 dumps: inverts + pit with anchor plates;
- Biomass structures: foundations, inverts, slabs with anchor plates for conveyor/machine support. These structures will allow the wood to be transported from its arrival on site to its combustion;
- The storage silos: circular sails 27m in diameter. A ground floor level of 5.4m high, 60cm slab with support for auger. The ground floor level is 14m high, 40cm thick, cast in BAP, with anchor plates at the head of the walls. The 2 silos will be used to store the wood;
- Ash storage: building comprising 4 boxes (225m² each), mainly prefabrication;
- Racking: massive racking of the notched type, racking allowing the connection between GVE and NSG and the future Ecopark.
Norske Skog Golbey will provide the supply of class B recycled wood, collected mainly in the Grand Est region, and waste from the plant's industrial process. Veolia will operate and maintain the cogeneration plant and the biofuel preparation platform for a period of 19 years.
Congratulations to the 50 workers and site supervisors working on this monumental and innovative project! Good luck with this huge project! The plant is scheduled to be operational in May 2024.