Here’s how beer (yes, really) is being used as green energy – Electrek

A wastewater treatment plant west of Adelaide, Australia, is using stale beer to generate biogas, which in turn can power up to 1,200 homes.
Beer = biogas
Water utility SA Waters Glenelg Wastewater Treatment Plant combines old beer with sewage sludge. That combo creates a biogas, which is naturally produced from the decomposition of organic waste that then powers the entire plant. SA Water is owned by the South Australian government and provides services to around 1.5 million people.
So where…

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