Designed and built by PhD engineers, not a sales team
Helios comes out of Cambridge. The optimisation model is built and validated by PhD engineers, not bolted onto a generic quoting tool.
For UK solar installers
More profit on every solar job, without cutting performance
Helios runs every panel, battery, and layout option from your own stock — the kit you normally fit — and shows you which one makes you the most money, whilst optimising for results for the customer.
- Improved Profit Margin
- Every design is priced against real component costs and your margin target
- Higher Client Satisfaction
- Designs are checked against generation and payback targets, so customers get what they were promised
Why we built Helios
We got ripped off buying solar. So we built an optimised design tool instead.
Helios started when our own team tried to buy solar and kept getting quoted oversized, cookie-cutter systems dressed up as bespoke. We're Cambridge PhD engineers, so we built our own way to do it properly: a machine learning method that tests real component and layout combinations from your stock and finds the one that actually earns you the most — without shortchanging the customer.
A model trained to find the best design, not guess at one
Instead of a rule of thumb, Helios scores thousands of real panel, battery, and layout combinations from your stock on margin and performance.
No templated system sizes
Every design is built for that specific roof, orientation, and usage — not pulled from a generic size chart.
A margin figure you can trust
Every price is built from the real cost of the panels, inverters, and batteries in your stock — not a generic per-watt estimate.
Helios proposes, your team decides
Helios surfaces optimised options. Final design, quote, and sign-off stay with your team.
What we do
Two things Helios does for your business
It designs the system — bespoke by our engineers, or self-serve through the tool. And it turns more of your enquiries into booked jobs.
Bespoke by our engineers, or self-serve with the tool
Send us the job and our engineers design it for you, or run it yourself through Helios. Either way, every design pulls from your own inventory — the panels, batteries, and inverters you actually stock — and is optimised for the profit you make on that specific build.
Turn more enquiries into booked jobs
A clear, credible first-pass design gives a hesitant enquiry a reason to book the survey — so more of the people who contact you actually become customers.
Optimised for margin and performance Real component pricing Design in minutes Final call stays with you
Built to work alongside your existing process.
Does this replace our design software?
No. Helios sits before detailed design — it finds the best-performing, most profitable configuration first, so your team designs around a stronger starting point.
How does it balance profit and performance?
Helios scores every viable component and layout combination against both installer margin and expected system performance, then surfaces the designs that do well on both — not just the cheapest or the biggest.
Do we still control the final design and quote?
Yes. Helios proposes optimised design options. Your team makes the final design, quote, and installation decisions.
Get early access
We're only taking on a handful of early adopter installers in each area. Join the waitlist to secure your spot.