r/uksolar

Hey everyone,

Just looking for a bit of a sanity check here. I had my solar and battery system installed last Wednesday. I was absolutely exhausted coming off a night shift, so when the installation guys finished, they just packed up and left without asking for any feedback or doing a proper walkthrough with me.

Now that I’ve had a proper look in the daylight, I’m pretty unhappy with a few things, and one of them seems like a massive safety hazard.

1. Exposed Wiring: There are literally exposed wires with Wago connectors just hanging out of the wall right underneath the inverter outside. No weatherproof junction box, nothing. Surely this is a massive safety and compliance issue?!
2. Inverter Height: They mounted the inverter incredibly low, literally resting right on top of the battery. I have to physically get down on the floor to read the screen or use the isolator switches. It makes no sense.
3. Messy Conduit: The black conduit running down the outside wall crosses diagonally directly behind my gutter downpipe. I told them I wasn't looking for perfect aesthetics, but it just looks incredibly messy. Plus, if I ever need to replace that downpipe in the future, the solar cable is going to be completely in the way. It would have been so easy to just route it parallel.
4. Growatt Logger is garbage: The software/logger refuses to change modes properly. I tried switching from "load first" to "battery" and had to try about 20 times on both the app and the website before it finally registered. The signal is fine, so it’s not my internet. I've seen online that Growatt loggers are notoriously unreliable. If it stays this bad, I'm thinking of demanding they fit an EPS output so I can just run my own third-party logger.

To be fair, the rest of the job has been great, and the system is generating power, but I feel like these finishing touches (and the glaring safety hazard) are really poor.

I’ve already emailed customer care demanding they come back and fix it ASAP, especially the exposed wires.

Has anyone else had to fight their installers to get this kind of stuff rectified? Am I being unreasonable to ask them to move the inverter and re-route the exterior conduit?

Would appreciate any advice!

24h later edit with their response 😄

Here is how Evergen Solar responded:

• Exposed wiring: agreed to fix it / the one thing they could not reasonably refuse given it is a live safety hazard
• Cable routing: refused to rectify it without charge, citing a customer fulfilment form I signed on the day as proof I agreed to the current layout, despite never having been shown any plan beforehand
• Inverter height: told me it "complies with manufacturer guidance and current regulations" which is directly contradicted by Growatt's own published manual
• Data logger: no proposed resolution whatsoever, complete silence on the issue
• Their solution to everything: a quote for £1,850 including £1,500 for an EPS socket that is already physically present on the Growatt SPH as a standard port included in the box ... I proposed if they cant fit a proper logger put a plug from the inverter so i can plug in something like Solar Assistant ...

https://preview.redd.it/hiqb8s75tbzg1.jpg?width=2252&format=pjpg&auto=webp&s=648fd3741166dcda350914a507986edbfd9a5b57

https://preview.redd.it/m871ps75tbzg1.jpg?width=2252&format=pjpg&auto=webp&s=0ec560797a34d346bc0134779303e3a7e3573337

https://preview.redd.it/s9zbas75tbzg1.jpg?width=2252&format=pjpg&auto=webp&s=4da494339fd9ff628afb698eaf11655088ff5af9

I’ve been quoted £7,200 for a SigEnergy 9kWh battery and 10kWh inverter and £9,200 for a 15kWh battery and 10kWh inverter from Heatable. My questions are:

- does this price look reasonable?
- any other reputable suppliers/installers that I should check out?
- they quoted me an additional £500 to rewire my EV charger onto a submain to stop the battery discharging into the car. Surely this is a) way too much? and b) unnecessary (as EV only charges when the battery would be scheduled to charge).
- any other considerations I need for 3-phase supply?

Just want comments on my cheapest quote for a solar/battery array

Single storey metal roof (no scaffold required)
3kw solar array (7*455w panel)
FoxEss h1 g2 6kw inverter
Ecs2900 battery cube (3*2.88kwh)

£6700

At first i thought this was a good price but the installer says it’s another £1k per additional 2.88kwh battery unit to expand

Hi Guys,

Looking at wondrwall battery plan and wanted to know. If I move house lets say 3-7 years in am able to get there sparks or my sparks to relocate? Can’t seem to find any contractual info regarding this.

If anyone can shed some light be great!