A written design report you can read, understand, and hand to any installer for a like-for-like quote.
Book a free scoping callI contacted Solar Tech Support with an issuewith my solar and Ron went out of his way to help me. Despite the fact that I'm situated hundreds of miles away and he knew there'd be no business opportunity from my inquiry, Ron still chased solutions and helped me get an understanding of what I needed to do. I love working with people like this, people with integrity and service at the heart of what they do. I just wish hew was nearer!
We reached out to Solar Technical Support after our solar energy system stopped working. As GivEnergy 'solar orphans,' we have been extremely pleased with the service from STS - our system was back up and working within a day of us contacting them. We found other solar engineers reluctant or unable to help us, so it has been great to find this organisation. We would definitely use them again and would recommend them to anyone, especially GivEnergy orphans!
Diligent and reliable service.
Ron very quickly diagnosed what was wrong with my GivEnergy system. Unfortunately the kit has died after only 3.5 years of use-which is quite sad and timing couldn’t be worse with GivEnergy gone bust. Ron gave me advise on how to handle this with my installer. I’m hoping they’ll be forthcoming, but if they aren’t i now have a good idea how to deal with that. Thanks a lot Ron!
Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.
What an Amazing service and so helpful . I have had problems with a faulty GivEnergy inverter and Ron has been so diligent in investigating and reporting on it . I’d give him more than 5 stars if I could for his help in diagnosis and potential solution. Thoroughly recommend .
Aerial imagery + OpenSolar yield model + written spec. Panel count correct in 96% of cases. Usually enough on its own.
Additional. Recommended for complex roofs, heavy shading, or where you want a fully signed-off spec before tendering.
Once installer quotes come in, our quote sense check screens each one against the spec and checks pricing against trade. Per quote reviewed.
When the installer designs and quotes the same job, the design follows the margin. An independent design follows the roof. You learn what the system should be before anyone tries to sell it to you.
Three installers quoting from scratch produce three incomparable proposals. Three installers quoting from the same written spec produce three directly-comparable prices. You stop comparing systems and start comparing installers.
Most common under-specs we see: missing optimisers on a shaded roof, undersized inverter on a south-facing array, no DNO-correct export limit, monitoring left as an optional add-on, panel count rounded down to hit a price-point.
Optimisers on a roof that doesn't need them, a battery that's twice the size your usage warrants, an inverter rated 50% higher than the array will ever deliver, premium panels chosen for brand rather than performance per pound.
You walk into the sales call with a written spec, a yield model, and a list of equipment SKUs to check. Installers respond differently to a customer who quotes DC/AC ratios. Sales tactics get a lot less effective when you know the technical landscape.
Whichever installer you choose, our independent design becomes the spec you measure them against. If commissioning data, monitoring readings, or on-site work diverges from what they signed up to, you have written evidence to push back with.
You tell us postcode, roof shape if you know it, what you're trying to achieve (bill cut, EV charging, off-grid, FIT-replacement, etc.). 15 minutes by phone or video. We confirm whether a remote design is enough or you should plan for the on-site formalisation too.
We pull high-resolution aerial imagery (Bluesky, Google, Aurora-equivalent) plus LiDAR-derived 3D model of your roof. Identify panel positions, vents, obstructions, shading sources. Mark up an annotated layout.
OpenSolar yield model under your actual roof tilt + azimuth + shading profile. From the yield + your consumption pattern, we size the inverter (1.15–1.30:1 DC/AC ratio typically), pick the optimiser / microinverter strategy, and size the battery if relevant.
Single PDF — typically 8–12 pages — with: scoping summary, layout, yield, sizing logic, recommended SKUs, ROI under realistic Octopus / SEG export rates, and the tendering spec sheet you give to installers.
If the roof is complex or you want a fully signed-off spec, we visit, formalise the panel count, verify mounting access, and update the spec. Roughly 4% of remote designs change materially after a site visit; the rest just get confirmed.
You send the spec to three (or more) installers. After install, our post-install snag inspection compares what was actually fitted against the spec we wrote. Catches non-compliances while they're still the installer's problem.
Tell us your postcode, roughly what you want from a solar system, and any quotes you've received so far. We confirm scope and pricing within one business day. No installer commissions; the design is yours to use however you like.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
Every message is read and answered, so please don’t send it twice; that only slows the queue.
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