Greengate Biogas plans to develop a biomethane plant in Powerstown to support Ireland’s energy security by reducing reliance on imported natural gas.

The plant will process agricultural residues (i.e. cattle and pig slurry, farmyard straw manure and poultry manure) into biomethane, biogenic CO2 and fertiliser. The plant will support local farmers to improve their manure management and create a circular economy by returning the degassed agricultural residues to farmland thereby contributing to a more sustainable future for Irish agriculture.  

The plant will process up to 700,000 tonnes of agricultural residues to produce approximately 250 GWh of biomethane and to capture 30,000 tonnes of biogenic CO2 per annum. The biomethane will be injected into the local gas network, providing sustainable energy equivalent to the heat demand of approximately 22,700 households. Options are being explored for storing the captured biogenic CO2 or using it for industrial purposes. 

The design of the plant is based on best available technologies with anticipated planning application submission in the third quarter of 2025.