Foresight Environmental Infrastructure (FGEN) acquired a 100% equity stake in Codford Biogas Limited (CBL) in February 2021. CBL owns the operational anaerobic digestion (AD) plant in Codford, Wiltshire, which processes food waste into biogas and then into renewable electricity. The plant has a capacity of 3.8 MWe and can process up to 100,000 tonnes of food waste annually

Below is a short video featuring interviews with Glass Pharms’ management team and clips from the Glasshouse growing facility

In the broader push for sustainable energy solutions, one technology is gaining ground far from the glare of wind turbines and solar farms: anaerobic digestion. Long a workhorse of agricultural and wastewater systems, this method of converting organic waste into biogas is now being seen through a sharper economic and environmental lens.

The appeal is straightforward. Anaerobic digestion uses bacteria to break down organic material—ranging from food waste to animal slurry—in oxygen-free environments. The result is biogas: a mixture primarily of methane and carbon dioxide, which can be used to generate electricity, fuel vehicles, or be upgraded and fed into national gas grids.

What was once an afterthought in waste management policy is now being repositioned as a potential pillar of the circular economy.

Energy security, decarbonisation, and waste reduction have rarely aligned so neatly. As energy prices fluctuate and landfill costs rise, anaerobic digestion offers a dual benefit: producing renewable energy while shrinking waste volumes.

Europe, in particular, has embraced the model. Germany alone is home to over 9,000 biogas plants, many of which are embedded in agricultural supply chains. The UK is catching up: in 2024, the Anaerobic Digestion and Bioresources Association (ADBA) estimated that biogas and biomethane could meet 20% of the country’s domestic gas demand by 2030.

For governments, biogas offers a tool to meet emissions targets. Methane captured in a digester is methane not released into the atmosphere—a particularly salient point, given methane’s global warming potential is over 25 times greater than CO₂ over a 100-year timeframe.