From the Netherlands to Spain: HoSt Group’s Integrated Approach to Industrial Biogas 

By HoSt Group

The Spanish biogas market is gathering real momentum, and HoSt Group is at the centre of it. Across Southern Spain, we are currently delivering a series of large-scale industrial anaerobic digestion projects that are setting a new benchmark for biomethane production in Europe. HoSt Bioenergy Systems delivers the biogas plant. Bright Renewables is supplying the biogas upgrading and CO2 liquefaction technology, which will be manufactured by InstalSolutions. The projects are being built for the Spanish company Five Bioenergy. 

The outputs from these plants reflect the ambition behind them. In Lorca, one of the country’s largest biogas plants is under construction. It will process over 206,000 tonnes of manure per year and produce 29 million Nm³ of biomethane and more than 40,000 tonnes of liquid bio CO₂ annually, with first gas to grid planned for Q3 2026. In Fuente Álamo, a second major project will convert more than 198,000 tonnes of organic residues into 15.35 million Nm³ of biomethane and 21,485 tonnes of liquid bio CO₂ each year.

These are installations built at a scale that demands engineering ingenuity at every level: think eight or nine digesters per site, each standing eight metres high with a diameter of 40 metres. To deliver projects of this magnitude efficiently and to the highest quality, we combine standardization with targeted innovation.

Our InstalPacs system is central to that approach. Piping assemblies are manufactured as ready-to-use modules at our Instalsolutions factory in Poland, then shipped directly to the site in Spain, where they are fast to assemble and install. The result is a shorter construction timeline and a measurable reduction in on-site error.

The Southern Spanish climate introduces a challenge that most biogas engineers never face: summer temperatures that require active cooling rather than heating to keep the biological process stable. Our hybrid skids address this directly. These external heat exchangers are designed to both heat and cool the installation and are delivered to the site as complete plug-and-play units for efficient integration.

Mixing at this scale presents its own engineering demands. Keeping nearly 10,000 m³ of substrate homogeneous requires a combination of our HoSt Ultramix system, with mixers exceeding 11 metres in length designed to prevent floating layer formation, and our HoSt PropMix submersible mixers, which maintain optimal flow throughout the tank.

From the Netherlands through Poland to Spain, our team is bringing complex pieces together into something genuinely remarkable. We are proud of what is taking shape, and proud of the people making it happen.

You can learn more about the projects shaping Europe’s energy independence in the Biogas Community Magazine – Europe Edition 2026.