Thank you Bristol for the poo!
Yes, that’s right. If you're a Bristol resident you are one of our green gas generators.
Sewage waste from one million Bristol people is turned into biomethane, a sustainable, virtually carbon neutral and environmentally friendly substitute for the fossil fuel, natural gas.
It all happens at GENeco, a multi-award winning recycling and renewable energy company, right here in Bristol.
You may have heard of GENeco before, as they were behind the first poo-powered bus which, in 2015, took people across the city on the aptly named “number two route”.
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From bottom to boiler - how does green gas work?
- The sewage waste arrives at GENeco’s treatment plant. It’s treated and turned into what’s called sludge.
- This sludge goes through a process called anaerobic digestion, which is much like what happens in our own digestive system.
- This then creates biomethane which goes into the grid, replacing units of dirty fossil fuels with clean, green gas*
Why choose green gas?
With gas and electricity costs rising, using sewage waste as a renewable source of locally generated energy makes environmental and economic sense.
Green gas is virtually carbon neutral, meaning there is no net release of carbon dioxide into the atmosphere. In other words, it doesn't contribute to an increase in global warming.
It’s the circular economy in action: Your waste is recycled into your energy. You save money by paying a locally-owned company. And our profits will go straight back into our city.
What can your poo do?
GENeco treats 75,000,000m3 of sewage waste every year. That creates enough methane to power 8,300 homes.
Your individual flushes alone can’t heat your home. But they certainly all add up:
- An average household’s weekly flushes would be enough to cook your weekend fry- up.
- An average household’s fortnightly flushes would be enough to cook your roast dinner.
- Annual flushes from every household in Bristol could fry 83,000,000 eggs **