Made up of two 10 MWth boilers, the plant is to produce more than 85,000 MWh of heat a year and avoid nearly 17,000 tonnes of CO₂ a year; natural gas will mainly serve as back-up.
It will burn around 30,000 tonnes a year of SURE-certified forest and agricultural biomass, supplemented by biogas from the site's wastewater plant; the use of brewers' spent grain is being studied.
According to AVEBIOM, the investment is around €16m, including €4m from the Spanish industrial decarbonisation programme (PERTE). Operator Magnon, an AVEBIOM member, will supply the heat for 15 years.
Summary written by databiomass with the help of AI tools and reviewed by an editor before publication. Our method
Suggested citation: databiomass.com, “Spain: Mahou San Miguel brewery switches to biomass with a 20 MW heat plant”, 13 October 2026, based on AVEBIOM.