Flatz GmbH, Lauterach

Waste heat recovery - energy recovery that is so efficient that even the local heating network can be supplied.

The goal:

  • The most efficient recovery of unused waste heat from production operations
  • Utilisation of the waste heat for heating buildings
  • Use of the waste heat to preheat the boiler feed water
  • Feeding the energy surplus into the local heating network of the municipality of Lauterach all year round 

Our solution:

  • Installation of a hot water buffer tank with 30,000 litres in the boiler house
  • Waste heat recovery from production water in the form of pumped hot water used for heating purposes
  • Expansion of the use of compressor waste heat
  • Utilisation of waste heat from production exhaust air thanks to the recovery of pumped hot water

The data:

The savings potential:

  • Recovery of 2,160 MWh per year with regard to waste heat from the production water
  • Recovery of 950 MWh per year from the preheating of boiler feed water
  • Recovery of 250 MWh per year with regard to waste heat from compressors
  • Recovery of 1,520 MWh per year from waste air due to production
  • Annual CO2savings of 472 t


The economic potential:

  • Savings of 2,487 kWh natural gas per year 
  • Supply of 1.2 GWh into the local heating network of Lauterach in year-round operation

Your contact person

Gerfried Kreuzberger

Gerfried Kreuzberger

Head of Project Management

E-Mail: Tel.: +43 (0)5574 85444-27 vCard

Your contact person

Hubert Rädler

Hubert Rädler

Managing Director & Head of Sales

E-Mail: Tel.: +43 (0)5574 85444-62 vCard

Flatz, Lauterach
Energy Storage
Flatz, Lauterach
Flatz, Lauterach