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Bioenergie – Fertigung

Planning, construction and operation of biomass heating plants, district heating networks as well as wind, hydro and biogas facilities

Bioenergie Logo

Bioenergie Gruppe

West Styria · Premstätten · Rohrbach an der Lafnitz · Gabriel/Gaberl · Traisen Valley south of St. Pölten · ZeltwegNew on Amplifa

1874Founded
32 heating plants / 4 CHP (9 MW el.)Facilities in operation
86 MWExtracted waste heat in 5 projects
330.629 tCO2 savings 2025

About the Bioenergie Gruppe

The Bioenergie Gruppe is a family-owned company from West Styria (Austria) that has existed since 1874. For more than 25 years, the company has been planning, building and operating climate-friendly biomass heating plants, combined heat and power plants and district heating networks, supplying private households, public institutions as well as commercial and industrial businesses with regional heat. The group currently operates 32 biomass heating plants with associated district heating networks as well as four biomass CHP power plants with a total electrical capacity of 9 MW. In addition, 86 MW of waste heat is extracted in five projects, including in cooperation with Heinzel Pulp (Pöls) and Sappi (Gratkorn). The portfolio is complemented by the Gaberl wind farm, three hydropower plants in the Traisen Valley and a biogas plant at the Zeltweg air base.

Site
West Styria
Processes
Planning of biomass heating plants, Construction of biomass heating plants, Operation of biomass heating plants, Operation and construction of district heating networks, Operation of biomass CHP power plants (9 MW electrical), Waste heat extraction (86 MW in 5 projects), Operation of wind, hydro and biogas facilities, Pellet production (project)
Materials
Biomass, Wood pellets, Industrial waste heat, Green cuttings
Founded
1874
Industries
Energy supply, District heating, Renewable energies, Commercial and industrial, Public institutions, Private households
  1. 01

    Planning of biomass heating plants

  2. 02

    Construction of the plants and district heating networks

  3. 03

    Fuel supply with regional biomass

  4. 04

    Operation of the heating plants, CHP power plants and networks

  5. 05

    Waste heat extraction and customer supply

Energy Sources and Technologies

BM

Biomass

Regional fuel for heating plants and CHP power plants.

HP

Wood pellets

Produced in Rohrbach an der Lafnitz from sawdust of rhi Holzindustrie Rubner.

AW

Industrial waste heat

Unused heat energy from paper mills is extracted and fed into the district heating network.

GS

Green cuttings

Main substrate of the biogas plant at the Zeltweg air base.

Locations and Facilities

Standort West Styria

West Styria

AT

Headquarters

Standort Premstätten

Premstätten

AT

Biomass heating plant with district heating network (4 MW boiler) for the greater Graz area

Materials
Biomass
  • 4 MW biomass heating boiler
  • Flue gas condensation system
  • Heat pump
  • Photovoltaic system
Standort Rohrbach an der Lafnitz

Rohrbach an der Lafnitz

AT

8 MW biomass heating plant and pellet production (Steirer Pellets GmbH with rhi Holzindustrie Rubner)

Part weight / size
90,000 t pellet capacity
Materials
Sawdust, biomass
  • 8 MW biomass heating boiler
  • Pellet production

Gabriel/Gaberl

AT

Gaberl I and II wind farms

  • 2 × 800 kW wind turbines
  • 3 × 2,300 kW wind turbines

Traisen Valley south of St. Pölten

AT

Hydropower plants Freilandwerk, Auwerk and Rempelwerk (590 kW total)

  • 3 hydropower plants

Zeltweg

AT

Biogas plant at the Austrian Armed Forces air base

Materials
Green cuttings
  • Biogas plant

Facilities and Projects

Wollsdorf Biomass Heating Plant
Wollsdorf Biomass Heating PlantBiomass · District heating
Steirer Pellets production plant Rohrbach
Steirer Pellets production plant RohrbachPellet production · Wood industry

Inside the production

Bioenergie Gruppe
Bioenergie Gruppe
Steirer Pellets – bulk pellets for private households
Steirer Pellets – bulk pellets for private households
Awards for the sustainable product
Awards for the sustainable product

Industries

Energy supplyDistrict heatingRenewable energiesCommercial and industrialPublic institutionsPrivate householdsPublic institutionsPrivate households

Additional services

Planning of biomass heating plantsConstruction of biomass heating plantsOperation of biomass heating plantsOperation and construction of district heating networksOperation of biomass CHP power plants (9 MW electrical)Waste heat extraction (86 MW in 5 projects)Operation of wind, hydro and biogas facilitiesPellet production (project)

Reference customers

Heinzel Pulp (paper mill Pöls, waste heat cooperation)Sappi (paper mill Gratkorn, waste heat cooperation)rhi Holzindustrie Rubner (project partner Rohrbach an der Lafnitz)Austrian Armed Forces / Zeltweg air base

History

  1. 1874

    Foundation of the family-owned company in West Styria

  2. ca. 1910

    Construction of the three hydropower plants in the Traisen Valley (Freilandwerk, Auwerk, Rempelwerk)

  3. For more than 25 years, planning, construction and operation of biomass heating plants, CHP power plants and district heating networks

  4. 2005

    Commissioning of Gaberl I wind farm with two 800 kW wind turbines

  5. 2015

    Expansion with Gaberl II wind farm with three 2,300 kW wind turbines

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