Aalborg Energie Technik a/s Biomass Boiler Plant

ENGIE Cofely-BCN, Grand Couronne, France

Bio Cofelyo Normandie (BCN) Plant is a biomass-fired cogeneration plant with an annual fuel input of 165,000 tonnes of forestry wood, and clean, uncontaminated residues from wood processing.

Biomass has become a rapidly increasing energy source for ENGIE Cofely, which has seen an increase in the number of projects using biomass. Most of the projects are based on wood but also on the development of energy crops and cereal waste.


Performance Test

The AET Biomass Boiler plant was successfully commissioned and handed over at the end of 2011. The official performance test carried out by Bureau Veritas (APR 2013) showed the following performances:

  • Boiler efficiency of an impressive: 93%
  • In-house power consumption: <1.6% of fuel heat input
  • Emissions below European standards.

All measured performances were better than the guaranteed performances by a good margin.


AET Scope of Supply

AET designed, supplied, constructed and commissioned the following scope of supply:

  • AET Fuel Dosing System
  • AET Combustion System with AET Spreader Stoker and AET Biograte
  • Oil burner
  • AET Biomass Boiler with superheater and economiser
  • AET SNCR DeNOx system (installed in 2014)
  • AET Combustion Air System
  • AET Air Steam Preheaters
  • Bag filter
  • Flue gas system and stack
  • Ash handling system
  • Piping and ducting
  • Insulation
  • Structural steel for boiler and boiler house
  • Platforms and stairs
  • Instrumentation
  • PLC control system.

Additional Information

  • An interesting article has been published in Bioenergy Insight (DEC 2012): “Pedalling towards CHP goals”, which explains the environmental impact of the project, regulations in France and project performance: Read more
  • As a result of the order from Cofely Services for the BCN project in Normandy and the focus on the French market, AET was awarded the French-Danish Trade Union Export Prize 2010 (18.01.2011): Read more
  • To obtain more information about this biomass-fired plant and AET: Contact AET sales.
Boiler: 55 MWth
  92 bara
  512 °C

Electrical power:

≤9 MWe

Process energy:

≤36 MWth

Video regarding the biomass-fired cogeneration facility for supplying steam to the Saipol plant in Grand-Couronne.

Video from the construction of the BCN plant.

The biomass-fired CHP plant at BCN has an impressive boiler efficiency.

Emissions presented by ENGIE Cofely and AET at PowerGen 2012.

Zignago Power s.r.l.–successfully producing Green Energy in Italy
The 49 MW Zignago Biomass power plant in Italy, owned and managed by Zignago Power s.r.l., belonging to the Marzotto family empire, has since its installation in 2013 been running with a very high availability (98,8%). The plant utilises wood residues and agricultural waste such as straw, mischantus and maize. >Read more
Zignago Power s.r.l.–successfully producing Green Energy in Italy
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  • Aalborg Energie Technik a/s
  • Alfred Nobels Vej 21 F
  • 9220 Aalborg East, Denmark
  • Tel +45 96 32 86 00
  • aet@aet-biomass.com