When the council closed the local college on the Lawrence Weston estate on the outskirts of Bristol, residents came together. They knocked on all 4,000 doors in the area and asked three simple questions: what do you like, what don’t you like, and what would you change?

With a clear picture of what the community wanted, they learned how to set up a small company to make it happen — and built the UK’s largest community-owned wind turbine to help fund it.