Aalborg Energie Technik a/s (AET) Biomass Combined Heat and Power Plant

Schneider - Biopower, Germany

The Biopower Plant is a biomass-fired heat and power plant which was built and is owned and operated by the German sawmill company, Holzwerk Gebr. Schneider GmbH.

A major benefit from building the power plant was to eliminate the waste wood, dust and other excess biomass, which is produced daily at the sawmill and the factory for insulation.

The plant has an annual fuel input of 53,000 tons of wood chips, wood waste, and demolition wood.

Very High Plant Availability

The plant was completed and commissioned in 2004 and supplied within 15 months. In 2012, the whole CHP plant operated 8472 hours and had an availability of approx. 97%.

Upgrade for Extra Energy Capacity

In 2010, Schneider invested in a factory producing insulation material based on wood fibre and this factory required additional steam and hot air on a 24/7 basis.

AET designed the concept for process integration and energy optimisation in order to be able to supply the extra energy required. The existing CHP plant was retrofitted with an extra backpressure steam turbine to supply 18 bar steam, additional extraction from existing turbines (at 1,6 bar), extraction of hot air from ACC and additional air heaters in the flue gas stream.

AET performed the engineering for the full concept and retrofitted the existing CHP plant as well as upgrading of the PLC control system and SCADA.


AET Supply

As turnkey supplier, AET designed, supplied, constructed and commissioned the following:

  • AET fuel feeding and dosing system
  • AET Combustion System with AET Spreader Stoker and AET-Biograte
  • AET Biomass boiler with superheater and economiser and flue gas air preheater
  • AET combustion air system
  • Feed water system
  • Steam turbine
  • Air cooled condenser
  • Air preheaters for hot process air
  • Water treatment plant
  • Ash handling system
  • Bag filter
  • Flue gas system and stack
  • Piping and ducting
  • Insulation
  • Structural steel
  • Platforms and stairs
  • Electrical systems
  • Instrumentation
  • PLC control and SCADA system.

Additional Information

  • Please also see Schneider's homepage to see how much carbon dioxide there is within timber, click here.

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


Contact AET Sales

Boiler: 26 MWfuel heat input
  67 bara


8 MWe

Process energy:  

8 MWthermal

The Schneider - Biopower Cogeneration Plant in Germany.

A 3D Image of the AET Biomass Boiler.

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