Community-owned renewable energy co-operative
Locals pool small investments to own a wind or solar project together, so the power, profits and decisions stay in the community.
Start small
Gather 5-10 neighbours for one evening (free) to map local roofs or sites and read a community energy guide; within 3 months, commission a pre-feasibility study (often grant-funded, a few thousand dollars) for one shared rooftop solar array on a community building.
The problem
Communities have little say in, and little benefit from, the energy projects around them, and many cannot access affordable renewable power on their own.
Where it fits
Thrives where there is a clear local champion group, a site with a good resource, supportive policy (feed-in tariffs, grants or easy grid access), a local or ethical lender, and legal forms that let many people buy small shares. Strongest in Denmark, Germany, the UK and parts of Australia.
The principle underneath
When the people who live with an energy project also own it, opposition turns into support and the returns recirculate locally. Spreading ownership across many small shareholders funds the project and builds a constituency that protects it.
Who to call
Hepburn Energy (Victoria), Coalition for Community Energy (C4CE, Australia), Community Energy England, Energise Barnsley.
Watch out for
Underestimating grid connection and approvals; relying on a single subsidy that can be withdrawn; volunteer burnout during long development phases; share offers that only wealthier locals can join.
Where it comes from
Rooted in Danish wind co-operatives of the 1970s-90s and German Bürgerenergie. Open practice, shared freely through community energy networks.
Where it's worked
Hepburn Shire, Victoria, Australia · 2011-present
Two-turbine 4.1 MW co-operative wind farm owned by about 2,000 members, supplying the equivalent of around 2,300 homes and a $15,000 per turbine yearly community fund.
DocumentedSource
Hepburn Shire, Victoria, Australia · 2011-2020
Research on community-owned wind finds local ownership generates strong social support for wind power.
Peer reviewedSource
Barnsley, England, UK · 2015-2018
Energise Barnsley community solar launched despite feed-in tariff cuts, generating over 1,400 MWh and cutting 765 tonnes of carbon.
DocumentedSource
Copenhagen, Denmark (Middelgrunden Wind Turbine Co-operative) · 2000 to present
8,553 members own 50% of a 40 MW offshore wind farm jointly with the municipal utility, raising about US$34.6 million through shares; it supplies about 4% of Copenhagen's electricity.
DocumentedSource
Where it failed
Hepburn Wind badly underestimated grid connection cost and difficulty, and its capital raise stretched out through the global financial crisis; volunteer capacity ran out and paid staff were needed earlier than planned. In the UK, cuts to feed-in tariffs and removal of tax relief in 2015-16 left far fewer viable community generation projects, and new starts dropped sharply after 2016.