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NRAs 2017: Energy from Waste - Products

WINNER: Argent Energy

Biodiesel is a renewable fuel that can be made from oils and is used, in small percentages, in cars, trucks and buses. Most biodiesel producers use vegetable oils but, since 2004, Argent Energy has been developing a product made only from waste and recycled fats and oils.

It has been working with Transport for London (TfL) since 2012 to find a way of starting to change the diesel supply of TfL buses from standard fossil-based diesel to a renewable version that can offer good carbon emissions savings.

argent energy product

argent energy product

After trials on TfL buses, work with the bus manufacturers, significant investment from Argent Energy and the development of a bespoke blending operation for London, Argent started the supply of high bio-blend diesel to London buses at the turn of 2016.

The fuel is supplied at the same price as standard diesel. It uses as much biodiesel as possible without having to change components on vehicles or make adaptations to them.

JUDGES’ COMMENT: “They have really looked at a complete solution – identified an unusual waste stream and are generating value as well as recycling.”

The biodiesel component is made entirely from recycled fats, oils and greases (FOG). Argent’s technology allows the dirtiest and least usable forms of wastes, such as the FOG from sewers and water treatment – which would otherwise go to landfill – to be transformed into a clear, pure biodiesel.

Until this initiative, all of London’s 9,000 diesel buses were running on standard diesel from standard supply chains.

UK legislation requires fuel suppliers to blend some renewable fuel with the diesel they supply. The average percentage of biodiesel included in the mix is just under 3%. Now, one third of London buses are being supplied with diesel that includes 20% renewable fuel.

Using Department for Transport lifecycle emission methodology, it has been calculated that 60 million litres of high bio-blend diesel – which includes 20% of Argent’s biodiesel – powering London buses will save 34,000 tonnes of greenhouse gas emissions a year.

In addition, Argent’s new plant can deal with 300,000 tonnes of FOG a year once it is fully operational, diverting material that would otherwise have gone to landfill.

FINALISTS

  • Advanced Plasma Power
  • Network Rail
  • Trade Effluent Services

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