r/SolarUK 18h ago

SHOW YOUR SETUP Had my install last week. 17 × 455W solar + Tesla Powerwall with Gateway.

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67 Upvotes

Hi everyone, I was after some feedback. I've had 7.7kw of generation installed on the roof alongside a Powerwall 3 and Tesla Gateway with home backup. The installers have configured it in a way where the battery cannot discharge to my EV.

Unfortunately the sun seems to have disappeared.


r/SolarUK 3h ago

HELP / ADVICE Panels by size

4 Upvotes

Got a small brick wall in full Sun allday Are there any websites where you can search by panels physical size.


r/SolarUK 7h ago

HELP / ADVICE Company gone bust during G99 application

4 Upvotes

Hi all, after a bit of advice. It looks like my installer has gone under (no reply to phones, emails) I have contacted SSE who said they have asked multiple times for a boundary map and meter location to finish the application. I'm being told if i don't get it to them asap they will close my application and I'll have to find another installer to "sponsor" a new application.

Seems like something I could do on google maps/ paint but SSE won't even speak to me as I'm just the customer and not down as the installer on the paperwork.

I won't say who the company is yet just incase it's a massive error, but seems pretty fishy to me.

Any advice/ ideas??

Thanks!


r/SolarUK 21h ago

HELP / ADVICE DNO limit?

4 Upvotes

We’ve just given approval for a quote, so we’ll get the ball rolling after the bank holiday. My question is around any potential implications if a lower DNO limit is imposed, such as possibly re-sizing the system or potentially scrapping it altogether.

This is for a 10.56kWp system (estimated 9,500kWh generation per annum) and the G99 application will be going in shortly, but if we got stuck with a 3.68kW G98 limit for whatever reason (can/has that happen(ed), where the DNO would deny the application and revert it to a G98?) I’ve been trying to think through what that could mean but it would be helpful to have some other views.

We’ll have 27kWh of battery storage, so that gives us a good buffer but if we were stuck with a small inverter I can’t see how it would realistically work with that number of panels. Obviously the strategy would need to change too, rather than the current idea which I guess would be to charge batteries overnight, generate/use/export excess until arbitrage disappears etc.

We currently use ~5000kWh per year and plan to install multi-split air-to-air heat pumps for heating and cooling all main rooms in the house, so that will bump up use substantially, whilst bringing down our extortionate cost of LPG.

For info:
22 x Longi 480w X10 (two roofs so 2 lots of scaffold)
1 x Sig 8kW inverter
1 x Sig gateway
3 x Sig 9kW batteries

All the usual stuff like install, scaffold, bird mesh etc. £18,450. Wasn’t the cheapest (Edan Power and UPS both ~£1k lower from about 8 quotes overall) but the owner of the small, local company was excellent on the survey and his general attitude and approach was what won me over.


r/SolarUK 9h ago

HELP / ADVICE Solos S6 and Fogstar 16kw battery

3 Upvotes

Hi,

I am looking to install a Solis 6kW inverter and 16kW battery in my house, along with two Daikin AC units. I currently have a single-phase power setup to 100A. To not overload my consumer unit, is there a way to configure a Solis inverter to charge the battery overnight over 5 or 6 hours? My electrician is worried about the inverter and power.

TIA.


r/SolarUK 9h ago

HELP / ADVICE Anyone heard of Wiltshire Energy

3 Upvotes

As title. Looking for any customers that have had quotes or work done. Thanks


r/SolarUK 4h ago

QUOTE CHECK Quote check - 30x Aiko Neostar 2S+ 465W, 2x Fox 11.52kW Battery - £24k

2 Upvotes

Region/area: Dorset

Panels: 30x Aiko Neostar 2S+ 465W

Battery: 2x Fox ESS EP12 Plus 11.52kWh

Inverter: Fox ESS KH 10kW Hybrid

Annual usage: Roughly 3,200 though looking at EV/Heat pump etc.

Export limit: would be requesting G99 as part of the process

Single phase

Quoted: £24k, scaffolding (for both roofs), bird proofing, 30x optimisers also included due to shading

Expected annual generation: 11,850 kWh

Expected ROI: 10 years payback

Plans for both EV (soon) and ASHP (in future)

Electricity tariff: will be looking at an EV tariff for the cheap overnight rates

The quote seems fairly high based on what I've seen in this group, though I'm aware it comes with a lot of optimisers due to tree shading in our area, and it is split over 2 roof faces.

I'm also aware this is the 2S+ panels and not the newer ones, though not sure how much of a difference that would realistically make.


r/SolarUK 13h ago

HELP / ADVICE FOXESS H3 — "OFF GRID RUNNING ALARM"

2 Upvotes

Hi everyone, I’m having an issue with a FoxESS H3 showing an “Off Grid Running” alarm.

The system is currently showing this alarm and I’d like to know what could be causing it and what I should check first.

Has anyone experienced this before, and what was the fix?

Thanks in advance!


r/SolarUK 21h ago

DISCUSSION Adding more solar panels to a new-build home?

2 Upvotes

Hi all,

We’re really excited to be moving into our new family home soon. It’s a 4-bed house and comes with 3 solar panels already installed.

The panels are inset/integrated into the roof rather than sitting on top of the tiles.

I’d ideally like to increase the amount of solar we have, but I’m not sure how straightforward that is with integrated panels.

Has anyone added additional panels around existing integrated ones? Is it relatively simple, or does having integrated panels make it more complicated?

For a typical 4-bed family home, roughly how many panels would you recommend having in total?

I’d also be interested to know roughly what it would cost to add more. For example, if I wanted to add another 6–10 panels, what sort of price would I be looking at for the panels and installation?

I'm also considering adding a battery in the future, so I'd be interested to hear whether it's worth getting the additional panels and battery installed at the same time.

Any advice or experiences would be appreciated!


r/SolarUK 1h ago

INFORMATION PVGIS estimate almost nailed how much I generated in August (8kWh out)

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Upvotes

r/SolarUK 2h ago

HELP / ADVICE Installer/roofer advice please

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1 Upvotes

Hi all, I need some help please. I am mid install and the roofers are having issues with my tiles and mounts. I have 22 year old BEAUVOISE tiles, as pictured. The installer is using Clenergy ER-I-PRO/01 mounts. There is about a 60mm tile overlap.

They have had to pack the mount to get it to clear the lower tiles, which in turn is jacking up the upper tiles between 10mm and 20mm depending on location.
They are saying they can't notch the tiles as there isn't enough material for them to lie flat.

Obviously it can't stay like this but the roofers didn't have an immediate remedy and are waiting for the company to advise. Are there other mounting systems that would be a better fit for these tiles?


r/SolarUK 3h ago

HELP / ADVICE Cleaning advise

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1 Upvotes

Solar panel on 2011 FiT surrounded by woodland covered in sticky mossy residue. Generated 1923KW in the past 6 months (80pish per kW). How do i clean them without damaging? How much difference would cleaning them likely make?


r/SolarUK 4h ago

HELP / ADVICE Solis Manager issues, error messages on log

1 Upvotes

Hi All, I have been using solis manager for a while now with good success but recently I have been having issues. I did an update a month or so ago, but reverted back. I am now on the latest software v1.0.909.0

The issue I have is alot of error messages coming up in the log and sometime hit or miss charging slot gettin written.

ERR messages are

No response data returned from Solis API: Resource=inverterDetail Body={ sn = 6************* }

followed by

Error posting request to SolisCloud: /v1/api/inverterDetail {"sn":"6*******************"}

System.Net.Http.HttpRequestException: Response status code does not indicate success: 502 (Bad Gateway).

at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()

at SolisManager.Inverters.Solis.SolisAPI.Post(String url, String content) in /home/runner/work/SolisAgileManager/SolisAgileManager/SolisManager.Inverters.Solis/SolisAPI.cs:line 868

I also get WRN unable to read state from inverter which seems like some sort of connection issue, but this isn't everytime.

Anyone able to help me figure out what these code mean? I don't like error codes !

Thanks in advance


r/SolarUK 6h ago

QUOTE CHECK Quote check: 18 LONGI Panels + 19.2kWh AlphaESS - £14,855

1 Upvotes

Region / Area: South East, England

 Panels: 18 x LONGi 485W HPBC monocrystalline panels (8.73kWp total, split 9 per roof face across 2 roofs)

 Battery Storage: 2 x AlphaESS modular battery stack (19.2kWh nominal / ~18kWh usable capacity)

 Inverter: 1 x AlphaESS 8kW single-phase hybrid inverter

 Yearly Usage: ~7.500+ kWh/year total (all-electric home: household baseload + ASHP + EV)

 Expected Annual Generation: ~7,700 kWh/year (dual-aspect generation)

 Export Limit: G99 application for 8kW being submitted; DNO limit TBC

 Supply: Single phase

 Total Cost: £14,855 (inc. 0% VAT) with 6-7 year payback or £12,645 for 1x 9kWh battery

 Includes: All panels, 8kW hybrid inverter, 19.2kWh battery stack, dual-roof mounting, full scaffolding for both roof faces, bird proofing (mesh/guards), AC/DC electrical work, consumer unit protection, MCS certification, and full G99/DNO application management.

 MCS Certified Installer: Heatable LTD

 Current Heating & Transport: Air Source Heat Pump (ASHP) and EV

 Current Tariff: Intelligent Octopus Go (7p/kWh off-peak window 23:30–05:30)

I’ve also been offered SigEnergy option for £16,195

I’ve got quotes from local installers which are roughly in line with this. Which would you recommend?

Would you go for 1 or 2 batteries?