Every installer describes their process as “simple” and “hassle-free”. We’d rather show you the machinery behind ours, because the difference between a smooth installation and a stressful one is almost never the panels. It’s the logistics, the people and what happens when something needs attention in year six.
Step one: design and proposal
It starts with a conversation about your home and how you use energy, not a salesperson at your kitchen table. Tell us your goals: lower bills, backup power, charging the car from the roof, all three. We’ll ask for a recent bill and, where available, your smart meter’s half-hourly data, because a system designed against real consumption beats one designed against a guess. If a video walkround of your property helps, we offer one on request. No pushy visits, no same-day-discount theatre.
Your proposal is modelled properly: roof measured from satellite imagery, pitch and orientation factored, your actual usage shaping the system size, and a fixed quote at the end of it. We specify from the two platforms we believe in, Tesla Powerwall and Sigenergy SigenStor, and we’ll tell you honestly which suits your home, tariff and car.
Before you commit, ask to see the monitoring. We run demo accounts for both the Tesla and mySigen apps, so you can explore exactly what living with each system looks like before a single panel is ordered.
Step two: grid application
Once you accept your proposal, we apply to your network operator for you. The grid paperwork (G98 or G99) is ours to handle, start to finish.
Step three: installation
Once your network operator approves, we agree a date for your installation with you. Your equipment is allocated before your date is booked, so “the batteries haven’t arrived” is a sentence our customers don’t hear.
The choreography around the day matters as much as the day itself. Scaffolding goes up ahead of the install through handpicked local firms we work with repeatedly, and comes down promptly afterwards rather than lingering on your drive for weeks. Stock arrives through our courier network partnerships, and the same logistics take the packaging and waste away. Most residential systems are fitted in one to two working days; we’ll confirm yours in advance.
Step four: handover and support
Handover means your certificates (MCS, NICEIC, DNO), your warranties registered, the app configured on your phone and the system already earning. As an Octopus Trusted Installer, we’ll also point you at the tariff that makes your system work hardest. Then the part most installers treat as an afterthought becomes the part we’ve built a team around:
- Dedicated technical support staff. Not a call centre reading scripts: our own people, reachable at support@powergy.co.uk, who know your system because we designed and fitted it.
- Live remote monitoring. With your permission, we can see your system’s health in real time. Many issues are diagnosed, and often resolved, before you’d have noticed them, without a van on your drive.
- Direct manufacturer lines. We deal with named, knowledgeable contacts at both Tesla and Sigenergy, not their public queues. When something needs escalating, it moves.
- Warranty claims handled for you. If hardware ever fails inside its warranty, we run the claim on your behalf: the diagnosis, the paperwork, the replacement, the refit. You make one call, to us.
Why the infrastructure matters
Any competent electrician can bolt a battery to a wall. What you’re actually buying is everything around that moment: the stock that’s ready, the scaffolding that turns up, the installation team that is our own, and the support desk that still picks up in 2034. That’s the machine behind the four steps, and it’s the reason we’re comfortable guaranteeing the work for ten years.
Ready to start at step one? Tell us about your home: four questions, two minutes, no obligation.
This guide is general information, not advice for your specific property. Every Powergy proposal is modelled on your actual roof, usage and tariff.