This tool overlays four things for England:

• Need — the English Indices of Deprivation at neighbourhood (LSOA) level. More deprived places stand to gain most from lower bills and local energy income.
• Existing community energy — organisations assembled from the Community Energy England member directory, energy-named registered societies on the FCA Mutuals Register, and energy-focused charities, geocoded to their registered location. Shown separately from project sites (installed community schemes from the community-maintained CEE map extract, 2024 vintage).
• Energy Redress funded projects — grantees of the Ofgem Energy Industry Voluntary Redress Scheme (administered by Energy Saving Trust), a useful marker of organisations that have already delivered funded energy work. Points sit at the local authority or town named for the project where known (most of them), otherwise the grantee's registered office.
• Energy knowledge bases — universities and companies leading UKRI-funded energy research (Gateway to Research, sized by project count), plus a curated set of sector anchors: DNO head offices, the system operator, the regulator, catapults and community-energy intermediaries.
• Community fabric — proxies for local civic capacity: registered charities per resident and community venues (village halls, community centres) from OpenStreetMap.
• Grid capacity — primary-substation headroom published by the Distribution Network Operators, shown as red/amber/green.

The Need × readiness view crosses deprivation (need) with community fabric and existing organisations (readiness): dark red areas are high-need but thin on civic infrastructure (support must be built, not just funded); dark teal areas have strong fabric and lower need; the deep purple corner — high need and strong fabric — is where community energy could take root fastest and matter most.

Caveats: organisation locations are registered offices, which may differ from where projects operate. Community fabric proxies are partial — they miss informal networks. Grid headroom is indicative; always check the DNO's own capacity map. Sources and method: see the repository.