Running on Rubbish: How Food Waste Powers Sainsbury

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July 25 (Bloomberg) -- Doug King, consultant engineer at Doug King Consulting, explains the aerobic digestion technology used by Sainsbury to power a supermarket using food waste. He speaks with Guy Johnson on “The Pulse.”

Aerobic digester.

It is a nice, neat circle.

That sounds great.

Is that something we should be doing in other plants or is it we have this thing that can do it anyway?

This particular story is fantastic.

It is headline grabbing and focusing attention on the technology which is mature and commercially salable.

The next bit?

The next bit.

There are about 60 plants in the u.k. at the moment which is digesting food waste from across the supply chain.


We have an awful lot more food waste that we could be using?


The real issue in this story is about food waste.

Not necessarily about connecting one store.

It concerns me headline grabbing initiatives like this distract from the big issue, in this case, food waste or energy consumption.

It doesn't matter whether they are connected to a supermarket.

The fact that we have them.

We're not using full resources available.

So the growth is going to be there.

Can you give me a sense of how much power is generated ? at the moment, i couldn't give you the total figures.

Sainsbury is claiming their total is contributing about enough power to run about 2.5,000 houses.

That is two onshore wind turbines.

That is quite a big number.

The issue here is there is the international grid of course.

By connecting a single plant to a single store, they are corralling the benefit of this plant.

At the expense of all the rest of us.

The net gain for society is zero.

We'll li through it.

Thank you very much indeed.

This text has been automatically generated. It may not be 100% accurate.


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