Show HN: Helios – what plug-in solar could generate for any address in Britain | Hacker News

Plug-in solar panels are now legal in the UK, opening the door for easier home installations.

Helios can estimate how much a specific address could generate and what that power is worth.

The tool uses government LIDAR-based skyline data to model local shading, with fallback methods where coverage is missing.

That gives UK homeowners a more location-specific view of expected output and electricity savings.