Straight-talking and trustworthy
I was approached by Steve from Prime Solar Solutions at my door, but even though I had a bad experience previously with solar salespeople, I was still interested, especially after having gotten an EV. Steve put me at ease by getting straight to the point and diving into details I was actually interested in rather than a sales pitch. Even though I had done no research, I felt it made sense. Installation was a few weeks after quotation, and completed within a few days (including scaffolding, though the main work only took a full day). Having had the system since October 2025, I can say I am really pleased overall and have no regrets in using Prime Solar Solutions.
What's really stood out to me is that Steve recommended me a very good system that I wouldn't have discovered myself, and it is only after having had it installed and getting to grips with it that I appreciate how much better this is than what I had been quoted before. Despite being a 3 bedroom semi-detached townhouse, I now have 19x 460W Longi panels, all black (they look amazing compared to most solar panels you see), where developers of the same model of my new-build house are putting just 2 (presumably lower-end) panels on! I should also mention I was initially quoted for 17 (5 more than from another company), and got the extra 2 for free. This setup isn't bottlenecked by the inverter nor the battery: 6kw Hanchu hybrid inverter and 9.4 (8.93 usable) kWh LFP Blade battery, both installed outside, and despite th ehorrendous weather we've had this winter, the system has been flawless, come rain, snow or sunshine. Hanchu may not be the most well-known brand, but what I love about Prime Solar is how this isn't seen as a weakness. I have been given a system based on quality and performance, not brand image. 8.7 kWp of panels + 6kw inverter is very well optimised (6kw is the biggest one they do), whereas lesser companies who want an easy win would quote an inferior low-end system with a 3.68kw inverter to make their life easier.
In terms of performance, I've seen a peak of 3.2kw in October, on an east-west setup, so I have no doubt that in the summer I will be getting closer to the 6kw limit. Peak daily generation so far is hard to judge, but based on the quoted numbers, I'm matching or exceeding what has been quoted, which is remarkably accurate in aggregate, especially given the variability of our weather. Peak of 16 kWh in October and 6.6 in January, the lowest I've had is 0.3, on the darkest, cloudiest day where indoor lighting is required at all times.
Savings? Well, on Octopus Intelligent Go, the 9kWh battery is enough to get me through dark winter days, charging at night (23:30-05:30) at 7p/kWh and exporting excess solar to the grid for 15p/kWh. On Savings Sessions, this effectively rises to 27p/kWh when factoring in Octopoints. Compared to January 2025, with this tarrif I have used twice as much electricity and it has cost me half; a 4x saving mainly due to tarrif optimisation. And that's not even factoring in the ~£7 worth of export in January alone (despite it being the cloudiest January in recent memory), and the fact that much of the cost is fixed (standing charge), so this saving is greater if your usage is higher. Having been through the worst part of the year under the worst possible conditions and cold weather (not ideal for outdoor installations), I'm amazed how well everything is working.
The main room for improvement is in the admin and paperwork, though admittedly some of this is due to DNOs being difficult to deal with. There isn't really a standard procedure for handover not only with regards to documents but also system demonstration and configuration to optimise the inverter settings based on the tarrif, usage patterns and for longevity, so I can imagine some customers will be leaving everything on default which may not be optimal. For example, it would be wise to cap the charge rate & max SoC, disable discharge (that setting is a little misleading), and set the charge times manually. On the flipside, the benefit of this is that the company is very easy to deal with, no layers of bureaucracy or automated phone lines. They are really friendly and approachable, not rogue traders.
Overall, I'm pleased with my system and I'm so glad Steve showed up at my door with a solar solution that I wouldn't have considered or come up with myself due to lack of familiarity. I'm now really immersed with fine tuning my setup. As someone that generally prefers to do a lot of research before committing to something, I did this on a hunch. In retrospect, that turned out to be a wise decision. Thus, in conclusion I would recommend Prime Solar Solutions if you're looking for a quality system to maximise the value you can get out of solar whilst avoiding the overly optimistic sales pitches.
January 30, 2026
Unprompted review