A partnership between edible oil recycler Brocklesby and fuel supplier Greenergy will see the production of biodiesel from unsellable high-fat foods such as pies, crisps and pasties.
Greenergy, which supplies around a fifth of Britain’s road fuels, will supplement its supply of cooking oil-derived fuels with biodiesel generated from high-fat solid foods, which typically contain up to 30% oil and fat.
Oils and fats contained in overcooked, mis-shapen or out-of-date food are extracted by a process developed by Brocklesby and purified by Greenergy, before being converted into biodiesel. Any waste food is then treated with anaerobic digestion technology.
Greenergy chief executive Andrew Owens said: “The quantities of biodiesel that we are currently producing from solid food waste are small, but we are expecting to scale up so that this soon becomes a significant proportion of our biodiesel. To put it into context, just one of these new facilities could handle enough waste pies or crisps to fill a cruise ship. With multiple plants, the potential for this kind of technology to reduce fuel emissions is considerable.”
The decision to increase the proportion of high-fat food-derived biodiesel follows a £50m investment by Greenergy into its Immingham biodiesel production facility, which currently produces more than 20 million litres of biodiesel a month from used cooking oil.