Solarig, through its renewable gases subsidiary Biorig, plans to invest more than PLN 1.5 billion (approximately €350 million) in the development of a large-scale biomethane platform in Poland.
The Spanish renewable energy group said the programme aims to develop and operate a portfolio of more than 20 biomethane plants over the next five years, with combined production of around 1TWh per year.
This output would be sufficient to meet the annual energy needs of roughly 400,000 average Polish households.
The planned facilities will be located across seven regions: Zachodniopomorskie (West Pomeranian), Wielkopolskie (Greater Poland), Dolnośląskie (Lower Silesian), Śląskie (Silesian), Lubelskie (Lublin), Mazowieckie (Masovian) and Podlaskie (Podlaskie).
Biomethane produced at the sites will be supplied to industrial customers, particularly energy-intensive manufacturers, via the gas grid under long-term biomethane purchase agreements.
Solarig said Poland represents a strategic growth market due to its strong potential for biomethane production.
Estimates from national and European studies suggest the country could ultimately supply a substantial share of its natural gas demand with domestically produced biomethane, supported by a large agricultural base and growing regulatory support for renewable gases.
Biorig’s investment model in Poland will combine the acquisition of ready-to-build projects developed by local players with the development of new greenfield sites.
The company intends to apply its experience in the construction, operation and management of biomethane plants gained in other European markets, while working closely with Polish developers and suppliers.
The group highlighted Poland’s extensive livestock sector and agricultural activity as key enablers for sustainable feedstock supply.
Biorig’s plants will primarily use manure, slurry and agricultural by-products, helping to improve waste management practices while producing renewable gas and biofertilisers for local use.
The Polish expansion forms part of Solarig’s wider growth strategy in the country, where it already has more than 1.5GW of renewable energy and storage projects under development.
By expanding into biomethane, the company is broadening its contribution to the energy transition beyond renewable electricity.
Across Europe, Biorig currently has more than 60 biomethane facilities under development in Spain, Italy and Poland.
Once completed, this portfolio is expected to deliver around 5TWh of renewable energy annually, supporting efforts to reduce reliance on fossil natural gas and to strengthen circular economy practices in rural regions.
Solarig subsidiary to invest over €350m in Polish biomethane platform
