In 2012, UEM developed one of France’s largest biomass plant for thermal and electrical power in Metz-Chambière.
The biomass plant contains a boiler with a thermal output of 45 MW and produces steam using wood chips and a back pressure turbine with a power of 9.5 MWe. It produces about 44 million kWh of electricity per year, enough to power 10,000 households. Residual steam is then injected into the Metz network, with a total yield of approximately 80%.
For this project, UEM turned to SPIE Est for:
- electricity distribution: detailed electrotechnical design, supply and installation of main low-voltage switchboards, supply and installation of area equipment cabinets with remote inputs/outputs, process wiring and routing,
- instrumentation & control: detailed automatic control design, programming of Quantum programmable logic controllers, development of the supervision system, installation of the control room.
Contributing to the green economy
Building this biomass plant helped expand the urban heating network in Metz, which has emerged as one of the biggest networks in France (100 km in 2013, compared with 73 km in 2008), with 60% of its power needs coming from renewable sources.