Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
Solar diverter
Hi all
When we had our solar PV panels installed in May a solar diverter was not mentioned to us. I am not sure whether this is because we hope to install a Tesla Powerwall once it is supplied (likely to be 2023). Anyway - the engineer who serviced our ASHP asked why we hadn't installed one and I replied that it hadn't been offered and, in truth, I didn't know about them.
The solar PV installer would now charge us an eye-watering £4,000 to install a solar diverter. This seems a long way from the prices quoted on line. eg https://www.solarpanelprices.co.uk/articles/solar-panels/solar-pv-diverter-explained/ - which suggests that we may need to pay up to £800 for installation.
What are your thoughts on the above. I'm not going to pay £4,000 for a solar diverter installation but I wondered if anyone could explain why the cost quoted might be so high? Is is because it wasn't installed in tandem with the PV panels?
Is it worth getting a solar diverter if we have a battery coming our way in 6 months time (we hope). ??
Posted by: @jennyrossHi all
When we had our solar PV panels installed in May a solar diverter was not mentioned to us. I am not sure whether this is because we hope to install a Tesla Powerwall once it is supplied (likely to be 2023). Anyway - the engineer who serviced our ASHP asked why we hadn't installed one and I replied that it hadn't been offered and, in truth, I didn't know about them.
The solar PV installer would now charge us an eye-watering £4,000 to install a solar diverter. This seems a long way from the prices quoted on line. eg https://www.solarpanelprices.co.uk/articles/solar-panels/solar-pv-diverter-explained/ - which suggests that we may need to pay up to £800 for installation.
What are your thoughts on the above. I'm not going to pay £4,000 for a solar diverter installation but I wondered if anyone could explain why the cost quoted might be so high? Is is because it wasn't installed in tandem with the PV panels?
Is it worth getting a solar diverter if we have a battery coming our way in 6 months time (we hope). ??
Hi Jenny,
The quote of £4000 is a total rip-off.
You can purchase a solar diverter online, the prices range from I think £200 to about £500. If you know a friendly electrician, they should be able to install it for probably a couple of hundred pounds.
Yeah thats insane. I've got a Solic, new they are £215 for the basic one. Then you would need an electrician for probably half a day of wiring. £400-500 installed TOPS if you have an expensive electrician. Honestly if you have an immersion and the wiring is simple and easy to reach its probably more like 2hrs work
https://www.earthwiseproducts.co.uk/shop/
@derek-m many thanks for your advice. Yeah - I was really shocked when I saw the price - which was a quick response to my email to him, ie no breakdown of what that comprised. When I went back to the company to see if he had added an extra zero by mistake he simply replied that the £4,000 was correct and that it was labour and 20% VAT.
I feel that I can't be rude to the guy as he's the boss of the company and it's one of the few in Fife, where I live, which seems to have a good reputation. Plus they have our battery on order and I want it installed without any trouble.
I guess they are over-busy and just don't want the work. Very disappointing to be ripped off by a company that has had so much business from us over the years.
@batalto many thanks. I've just replied to Derek above re my thoughts on this. But thanks for the advice. Much appreciated.
@jennyross any electrician can fit it for you. You don't need any particular skills, its a single CT clamp (I think) and thats about it.
Posted by: @jennyross@derek-m many thanks for your advice. Yeah - I was really shocked when I saw the price - which was a quick response to my email to him, ie no breakdown of what that comprised. When I went back to the company to see if he had added an extra zero by mistake he simply replied that the £4,000 was correct and that it was labour and 20% VAT.
I feel that I can't be rude to the guy as he's the boss of the company and it's one of the few in Fife, where I live, which seems to have a good reputation. Plus they have our battery on order and I want it installed without any trouble.
I guess they are over-busy and just don't want the work. Very disappointing to be ripped off by a company that has had so much business from us over the years.
What I find quite disgusting is that in the middle of an energy crises you have companies trying to take advantage and rip off their loyal customers, selling their services to the highest bidder. If they are too busy then they should just say so, not try to rip people off.
@jennyross, that’s shocking. It’s terrible that companies are trying to rip homeowners off. The bulk of that figure is labour. Ha! How many people for how many days to fit a diverter. Give me a break.
Get a copy of The Ultimate Guide to Heat Pumps
Subscribe and follow our YouTube channel!
I bought the parts from Robin and had it working in no time. It looks a bit daunting at first but it all comes together quite nicely. Cost for parts about £150.
@jennyross It does seem a lot. I'm a very-basic DIYer but installed an I2 diverter myself in an hour or two, cost c£200. I placed it between the existing switch and the immersion - effectively it's just a second switch, terminals standard LNE both ways, plus a run of bell wire connecting the unit to the draw sensor on the cable into the house (this determines which way current is running). Probably best to get a pro in if you're not confident, but not a £4000 job in my amateur opinion!
@derek-m Nope - we didn't. I lost the will 😫 Since July I've also been applying for the SEG and I'm almost losing the will there too. Honestly between electrical companies, power companies and the government I feel like a pawn on a chess board.
- 26 Forums
- 2,631 Topics
- 61.5 K Posts
- 1,865 Online
- 7,027 Members
Join Us!
Latest Posts
-
RE: Estimating true heat loss from twelve months of consumption data
@cathoderay Very valid points and I agree with your sta...
By ian33a , 37 minutes ago
-
RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 1 hour ago
-
RE: Setback savings - fact or fiction?
@cathoderay - thats great. Is there any possibility ...
By JamesPa , 2 hours ago
-
RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 3 hours ago
-
RE: Anyone concerned about GivEnergy?
@sunnyskies I agree with Downfield trying to ask the GE...
By Judith , 12 hours ago
-
RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
All going according to plan, mid July we get that 7kW a...
By Batpred , 14 hours ago
-
Current metrics - DHW target set to 47c
By TaffontheTaff , 19 hours ago
-
RE: My Grant R290 9kW Heat Pump Installation
@petch I'm very sorry that I have not picked up your po...
By GrahamF , 21 hours ago
-
RE: Samsung gen 7 HP 12kw - auto control issue and water law
Suggest you have a trial with Havenwise app. I have th...
By Broadsman , 23 hours ago
-
RE: New Solar, Batteries, Air Source and Under Floor Heating advice please
You’re right: UFH works best with high-conductivity fin...
By bafab , 1 day ago
-
RE: DIY or Don’t Touch? Solarman Smart Meter Install
That was my understanding also.
By JamesPa , 1 day ago
-
RE: Vaillant Sensocomfort Time
Oh I remember this from when I set mine up 2 years ago,...
By JamesPa , 1 day ago
-
Heat geek have already stated that the pro is in fact c...
By JamesPa , 1 day ago
-
RE: The Myth of the MCS Performance Guarantee
@editor I know. As if MCS wasn't bad enough, it's now e...
By Deltona , 1 day ago






