AET Biomass Boiler Plant

AET designs and supplies turnkey biomass boiler plants for integration into clients’ CHP and power plants with excellent and well-documented performance and availability.

The benefits of an AET boiler plant include:

  • The unique AET Combustion System
    » Low flue gas emissions
    » High combustion efficiency
    » Low in-house power consumption
    » Best Available Technology

  • High fuel flexibility
    » Lower operating costs

  • High boiler efficiency
    » Good customer business case

  • High availability
    » Improved customer business case

Determining the optimal design for a biomass-fired boiler plant involves factoring in many different parameters such as optimal operating conditions, fuel, feed water and steam properties and characteristics etc.

AET can assist you to optimise the plant parameters, not only for the boiler, but also for the complete plant. Our expert staff have many years of experience and extensive knowledge of steam cycles, boiler systems and steam turbines.


AET Biomass Boiler parameters

 AET Biomass Boilers can be designed for almost all types of biomass and this high fuel flexibility can give you a low cost basis for your business case.

The design parameters below form the basic platform for our plants:

Fuel heat power

25 - 170 MWth

Steam boiler

Water tube boiler with natural circulation

Steam pressure

70 - 140 bar
Single pressure or double pressure (reheat, e.g. 140 bar and 25 bar)

Steam temperature

Up to 540°C

Steam quality

According to VGB requirements for turbine operation

Furnace design

Residence time more than 2 sec. above 850°C

Operating time

At least 8000 hours without shutdown for manual cleaning

Boiler efficiency

91% - 94% depending on fuel moisture

Emission values

Better than European requirements

Fuel flexibility

Fuel moisture content: 10 - 55%

Auxiliary burner

Not necessary

In-house power consumption

< 2.0 % of fuel heat input


Better than 98 %


To see some of AET’s biomass-fired boiler plants, click on the links below:


The Cofely GDF-SUEZ cogeneration plant is being built in Orleans, France.

AET Biomass Boilers can burn a wide variety of biomass fuels.

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