Business case study
At a glance
- Processes around 80,000 tonnes of waste a year
- Incoming feedstock is fully processed into renewable energy and fertiliser just three days after entering the system
- The plant and offices are run by energy produced on site, with remaining energy fed in to the national grid
- In 2016 a second AD tank was completed which increased processing capacity to 100,000 tonnes of waste a year
- Own fleet of 30 food waste powered collection vehicles creating a one-stop solution and maintaining a closed loop service for its customers
- Focuses on companies within the M25, incurring a lower carbon footprint through reducing food waste travelling miles
Bio Collectors is the largest recycler and collector of food waste in London. The company’s anaerobic digestion plant is capable of processing 100,000 tonnes of waste every year, which can generate the equivalent of 6mW of gas and 1.7mW of electricity per hour. The company has a variety of customers, including grocery retailers, manufacturers, restaurants, hospitals and local businesses. It operates 30 vehicles that service customers across London, providing flexible bespoke collections as needed. Unlike other AD plants, Bio Collectors is capable of processing biodegradable packaging as well as food, making it a one-stop shop for many customers that do not have the resources to separate packaging on site.
Over the years Bio Collectors invested heavily in maximising the potential of energy from food waste, introducing new technologies and building a second tank that has doubled its capacity. The AD process produces two products: energy and digestate. Firstly, green energy produced is used to run the plant and on-site offices, with the remainder fed back into the national supply. Bio Collectors is the only site in south-east England that injects gas directly into the national grid. Very few sites are able to offer this service due to the complexity of the system and the regulations surrounding it. In order to connect to the National Grid distribution network, Bio Collectors invested in technology to ensure the quality of gas produced met the requirements set out in the Gas Safety (Management) Regulations GS(M)R 1996.