A UK solar company.
Built for British roofs.
Archai Power designs, certifies and supports panel-level optimisation for UK installers — from the first quote to the 25th year of warranty.
探赜索隐，钩深致远 · On the Edge to Beyond
We exist to make every UK solar panel safer, smarter and fully productive — with real engineering and real UK support behind every install.
Why we're here
UK roofs are rarely simple. Shade, mixed pitches and complex layouts cost generation, and high DC voltage on the roof is a real risk. Installers want panel-level control and visibility without changing the inverters they trust — and they want someone in the UK to pick up the phone.
What we do about it
Archai pairs panel-level optimisers, a wired data gateway and the SolarSync platform into one system. It's certified with the UK's leading inverter brands, and sold and supported by our team here in the UK.
From UK start-up to certified with the UK's leading inverters.
Founded by a team with decades in solar PV, electrical engineering and technology operations across the UK, Europe and Asia.
Founded in the UK
Archai Powertech Ltd set up to bring panel-level optimisation to UK installers.
Solis certified
Official compatibility certificate, proven on a live UK install.
Ofgem ECO4 approval
Innovation Measure IM045 approved with our module partner JA Solar.
Fox ESS certified
Validated on live installs, monitored by Fox's own technical team.
How we work.
Engineer first
Every claim starts with a test, a measurement or a certificate.
Straight answers
If something is still in testing, we say so.
UK people, UK hours
Installers reach engineers who know the product.
Built to last
IP68, genuine Stäubli connectors, 25-year warranty.
Six reasons installers choose Archai.
Built for UK roofs
Chimneys, dormers, split pitches and shade. Panel-level MPPT keeps every module working at its own best.
Keep your inverter
Certified with Solis and Fox ESS — the UK's leading inverter brands. No need to switch kit to add optimisation.
Wired, not wireless
PLC sends data down the DC cable. No router placement, no Wi-Fi dropouts, fewer callbacks.
Safety at every panel
Rapid shutdown takes each optimiser to a 1 V safe output. Genuine Stäubli MC4 removes cross-mating risk.
UK support, start to finish
Design help, commissioning support and warranty claims — all handled by our team here in the UK.
Funding-ready
Approved under Ofgem's ECO4 Innovation Measure (IM045). Backed by a 25-year replacement warranty.
Leadership.
Nick Taylor
20+ years running technology operations in telecoms, research and clean energy. Computing and Communication Systems Engineering, University of Manchester.
Hao Bai (Eddie)
Nearly 20 years in energy systems, smart metering and electrical manufacturing. PhD, Complex Systems and Instrumentation, University of Sheffield.