Aalborg Energie Technik a/s Biomass Boiler Plant

ENGIE COFELY, Bio Cogelyo Normandie, France

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

Performance Test

The biomass boiler plant was successfully commissioned and handed over at the end of 2011 and the official performance tests carried out by Bureau Veritas (APR 2013) achieved the following performances:

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

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


AET 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 and cladding
  • Platforms and stairs
  • Instrumentation
  • PLC-control.

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, ENGIE Cofely and regulations in France and project performance. Read more.
  • 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 the use of cereal waste. 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.

Questions? Need detailed information?

To obtain more information about this biomass plant and/or generally about Aalborg Energie Technik a/s:

Contact AET sales here

Boiler: 55 MWfuel heat input
  92 bara


9 MWe

Process energy:

36 MWthermal

Video from BCN - ENGIE Cofely : the biomass cogeneration facility for the Saipol plant in Grand-Couronne: BCN. It is one of the largest biomass combined heat and power plants in France.

Video from the construction of the BCN plant.Click here.

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

A joint presentation between Cofely Services and AET was made 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