Green Gas – Heating, Power, and Road Fuel

Biogas is produced when the anaerobic transformation of organic raw materials occurs from green, household, agricultural, agri-food or industrial waste. It therefore provides a highly competitive, low-cost transport fuel alternative. Biogas is an easily storable fuel that can be used wherever natural gas is used the same way as natural gas is used: without changing any settings on equipment.

Through methane capture and purification, biogas is utilized in applications such as heating, generating electricity and as a transport fuel (Liquified or compressed Biomethane), further reducing our dependence on natural gas and other fossil fuels.

With existing gas infrastructure networks in place, biomethane will be of vital importance during the transition of our energy system to renewable sources. The future of biomethane looks bright.


We are offering biogas solutions featuring the following labels:


ISCC is a globally applicable sustainability certification system and covers all sustainable feedstocks, including agricultural and forestry biomass, biogenic wastes and residues, circular materials and renewables.

With currently over 4,000 valid certificates in more than 100 countries, ISCC is among the world’s largest certification systems. It has been developed through an open multi-stakeholder process and is governed by an association with more than 130 members, including research institutes and NGO’s. As a no-deforestation standard with a strong commitment to protect forests, high-carbon stock lands and biodiversity, ISCC strives for a world where biomass and other raw materials are produced in an environmentally, socially and economically sustainable manner.


Better Biomass is an international certification system for solid, liquid and gaseous biomass. The Better Biomass certificate is used to demonstrate the sustainability of the biomass used for energy, fuels or bio-based products. The underlying sustainability criteria have been established in a multi-stakeholder consensus process between private companies, government and civil society organizations and are published in the standard NTA 8080. These criteria cover important values for nature, environment and society (People, Planet, Profit). Better Biomass is managed by NEN, the Netherlands Standardization Institute, a CEN and ISO member. NEN has an international accreditation as a scheme manager and certification audits are done by accredited independent certifying bodies.


Naturemade is the Swiss quality label for energy from 100% renewable sources. Certification is available at two levels – naturemade star and naturemade basic.

The quality labels naturemade star – 100% eco-energy – and naturemade basic – 100% renewable energy – are awarded for plants producing renewable energy (electricity, heat/cooling and biomethane); certification is also available for the supply of energy from these plants to end consumer


REDcert offers certification schemes for sustainable biomass, biofuels and bioliquids (REDcert-DE and REDcert-EU) as well as sustainable agricultural raw materials for use in the food/feed industry and biomass for material purposes respectively material purposes in the chemical industry (REDcert²). REDcert’s philosophy is to support the scheme participants in the implementation of sustainability certification and offer practically oriented schemes.


Our clients can choose biogas sources from the following technologies:

  • Crop Feedstock
  • Waste Feedstock


Get in touch with one of our STX Climate Solutions experts. We support you by creating a tailor-made solution based on your economical, marketable and geographical preferences.



Willem Verkade

+31 20 2366 849



Joscha Kirschke

+31 20 2366 824


North & South America

Austin Wentworth

+1 212 597 9431


Eastern Europe

Ambrus Galántai

+31 20 2366 852

Tim Großheimann

+31 20 2366 839

Keegan Dean

+1 646 771 7266


Greater China

Ziwei Song

+31 20 2366 820



Max Andronichuk

+31 20 20 5357 784



David Svensson

+ 46 313 113 306

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