The world's first commercial liquid air battery project has been commissioned to be built in Trafford, Greater Manchester, UK - it's a very residential area: https://www.gov.uk/government/news/greater-manchester-to-hou....

This guy (https://www.youtube.com/watch?v=tMLu9Dtw9yI) makes some good points about how cheap and scalable the technology is for medium-scale energy storage. It uses tried and tested, reliable and simple components for example