Energy wood


The use of energy wood is the backbone of the energy transition, forest hygiene, and a regional energy supply. Clear rules for the quality and allocation of energy wood ranges are required in order to literally avoid sand in the gearbox. Our team trains the industry on the subject, monitors the takeover of energy wood and thoroughly inspects product ranges such as wood chips and shredder wood. We thus also increase acceptance for the most important renewable energy source.

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Quality-assured energy wood

The usual assortments of energy wood include wood chips and shredder wood of different quality, but also extend to logs and bark. As an accredited testing body, we test all relevant quality parameters in our biomass laboratory. Based on these analyses, we create accredited test reports on energy wood quality. The common fuel tests include:

  • ÖNORM CEN/TS 15370-1, Ash melting behaviour
  • ÖNORM EN ISO 18134-2, Water content
  • ÖNORM EN ISO 18122, Ash content
  • ÖNORM EN ISO 18125, Calorific value
  • ÖNORM EN ISO 17828, Bulk density
  • ÖNORM EN ISO 16948, Carbon, hydrogen and nitrogen
  • ÖNORM EN ISO 17827-1 / -2, Particle size distribution (sieve analysis of wood chips and shredder wood)
  • ÖNORM EN ISO 16994, Sulfur and chlorine
  • ÖNORM EN ISO 16968, Heavy metals: Arsenic, cadmium, chromium, copper, lead, mercury, nickel, and zinc

We are also recognized as an accredited inspection body for the takeover of energy wood in accordance with the FHP directive and monitor this activity through independent on-site audits.

Quality assessment over and beyond the normative framework

We also offer our customers specialized tests for energy wood that go over and beyond the normative framework. Frequent questions concern smell, microbial infestation and fungal spores, as well as contamination e.g. by road salt.

Contact persons


Energy wood

Biomass laboratory

Our services


Monitored energy wood reception

Our independent auditors regularly monitor the correct takeover of energy wood in heating and CHP plants, which contributes to the transparency between buyer and seller.

Tested wood fuel quality

We test all wood fuel ranges based on the currently valid test standards. Does the fuel meet expectations? Our laboratory provides for clarity.

Determination of the particle size distribution using sieve analysis

Fast sample throughput in automated ash content determination

Ion chromatography for the determination of chlorine and sulfur in wood fuel

Available infrastructure:


  • Thermogravimetry: Leco, simultaneous determination of ash content for six samples in three-fold determination
  • Calorimeter: IKA, Calorific value determination and bomb digestion for elemental analysis
  • Vibratory screening machine: Retsch AS 300, Sieve tower 305 mm diameter, all common sieve sizes, fine fraction determination, sieve analysis, fractionation
  • IC/UV/CD: Thermo Fisher Scientific, Ion Chromatography with UV and conductivity detector, sulphur and chlorine content
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