Innovating the products a zero-carbon world needs.
Decarbonising the built environment doesn't just need better advice — it needs better products. Planet A turns first-principles engineering and live R&D into the building methods, energy systems and tools the transition is missing, then proves them on real homes at real scale.
Innovation that ships.
Our R&D doesn't sit in a report. We prototype, monitor and productise the things the transition needs — and put them to work on live developments.
Zero Bills homes
With Verto Homes and Octopus Energy, we engineer solar, battery and heat pump into every home to meet the Zero Bills standard — and cut residents' energy bills to nothing.
Future Energy System Tool
Built from our National Grid work, now used by community energy groups to plan viable net-zero futures across England & Wales.
Warm Walls
A performance study led by Dr David Parish, advancing how we retrofit hard-to-treat solid-wall homes with confidence.
Monitoring & methods
Fabric, heating and monitoring approaches trialled on real housing, so what works once can be repeated at scale.
The transition is a product problem.
The technology to decarbonise buildings mostly exists — what's missing is the engineering that makes it work together, affordably, on real homes. That's the gap we build into. Every method we prove makes the next zero-carbon building faster, cheaper and more certain to perform.
Standards that keep the engineering honest.
Our work is independently recognised — Passivhaus Trust members and members of the Federation of Small Businesses — so the rigour behind what we build is verified, not just claimed.
How the innovation gets real.
Founded in Truro by two senior engineers set on building what the transition was missing.
New fabric, heating and monitoring methods proven on Verto Homes' live developments.
Work for National Grid shaped a Future Energy System Tool now used across England & Wales.
Engineering Zero Bills homes with Octopus Energy and productising low-carbon methods for the wider sector.
Put our innovation to work.
Whether it's one building or a whole development, bring us the hard energy question — we'll engineer the answer.