Anaerobic Digestion – a demonstration programme under the Environmental Transformation Fund

3rd and 4th September 2008

A Defra programme delivered by WRAP with support from the Carbon Trust

16-18 Mt/y food waste~ 6.7 Mt/y household waste

~ 4.1 Mt/y industrial~ 4.6 Mt/y food service and

supermarkets~ 1-3 Mt/y other commercial

& agricultural•Total: 16-18 Mt/y•~ 4 times our body weight/year

Food waste the hidden resource?

16-18 Mt/y food waste~ 6.7 Mt/y household waste

~ 4.1 Mt/y industrial~ 4.6 Mt/y food service and supermarkets~ 1-3 Mt/y other commercial &

agricultural

1 tonne food waste = 300 kWh electricity based on 37% efficiency.

Food waste – the hidden resource

But this programme is not just about diverting food waste from landfill

Drivers – why AD for the UK?

Climate Change Renewable energy generation capacity Waste reduction & recycling Sustainable farming & diversification Environmental protection & water

management

Feedstock materials Digestion vessel

Biogas

Biofertiliser

Manures and slurriesFood waste

(commercial and domestic)Agricultural Byproducts

Sewage sludge

CO2 + CH4

Anaerobic digestion

Finland

Germany

Sweden

Scotland

Denmark

Biomethane uses

Other potential feedstocks

Manures and slurries

Crop Residues

Sewage treatment

Central Government capital support for AD WRAP capital programmes

– Existing technology– Running now – £30M (England, Scotland, Wales & NI)

New ETF programme– Cutting edge technology– £10M (England only)

Why demonstration projects?

Demonstrate -

The use of the technology to a wide audienceThe use of cutting edge technologyFeasibility for implementation and use of the technology

ETF – programme objective Demonstrating state of the art or innovative technology technology Increasing efficiency Speed up investment and industry development

To advance the commercial viability of AD technology in the UK by demonstrating improved commercial and technical performance and reduce technology risk for potential investors via demonstration projects.

ETF processETF branded capital grantDelivered by WRAP with support from the Carbon TrustOpen tender invitationDetailed project requirements and evaluation criteriaCapital projects that deliver against key aims

Aim 1 – Maximising cost effective production of biogas

Optimise: inputsdigestion and solids reductiongas production and utilisation

Aim 2 – Maximising environmental benefits from use of anaerobic digestateFertiliser value

Sustainable agriculture

Competitive agricultural sector

Aim 3 – Maximising potential of anaerobic digestion to reduce carbon footprint of food supply chain Closing the loopBiomethane for transportHeat useRefrigerant usesGreen energy

Aim 4 – Maximising opportunity for injection of biomethane into gas grid

Efficient gas production

Gas clean up technology

Grid connection and use

Aim 5 – Maximising potential of anaerobic digestion to reduce carbon footprint of water treatment infrastructureBuild on current resourcesKnowledge and technology transferEfficient use of existing infrastructure e.g. using new feedstocks for the industryCarbon benefits

Successful projects will be….

Those that demonstrate cutting edge technologyThose that deliver strongly against the aims of the programmeThose that are most viable both technologically and economically

Putting the jigsaw together

Maximise gas production

Maximise environmental protection

Closing the loop

Biomethane to the grid

Water treatment infrastructure

Success depends on

Right peopleRight technologyRight placeAbility to fit the timetable

Claire will explain the process in some more detail

Work groups

Opportunity to networkDevise theoretical projectsFind synergies within the work groups

Projects must meet as many aims as possibleDevise the ideal!Identify barriers, costs, and then solutions and benefits.