Beer unsold during Australia's coronavirus lockdown has been turned into renewable energy

Australia's coronavirus lockdown imposed in late March has hit the brewing industry hard.

(CNN)When Australia's coronavirus lockdown forced bars and restaurants to shut down in March, breweries were left with huge inventories of unsold, stale beer.

But instead of going to waste, some expired ales and lagers in the state of South Australia have been serving a new purpose: powering a water treatment plant.
At the Glenelg Wastewater Treatment Plant to the west of the state capital Adelaide, millions of liters of unused beer from local breweries have been converted into renewable energy to power its wa