Not an unfair comparison but +10 pannels (inc. fitting) is cheaper than +10kwh battery (~£3k). As close as you can get to £13k would be a reasonable price.
It's actually nuts how much prices have dropped in the last year.
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Solar panels and battery - any real world recommendations?
- Thread starter GinG
- Start date
Not an unfair comparison but +10 pannels (inc. fitting) is cheaper than +10kwh battery (~£3k). As close as you can get to £13k would be a reasonable price.
It's actually nuts how much prices have dropped in the last year.
Thanks. That's roughly what their 10kw battery option was. I wanted 20kw so it's 15. Still too high?
Soldato
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- Wilds of suffolk
I've got solax so can say why the 7.5 + 3, its because the largest single phase inverter is a 7.5
Has your installer quoted for a matebox? If so then they can easily change that for a matebox advanced and that will give the whole house EPS, its about £600 to do that.
If your having this type of system your batteries will be linked to a primary inverter thats attached to the matebox, and ultimately the batteries.
The second inverter will be attached to the incoming in effect with only the primary having direct access to the batteries. 20kwh is probably the 5 HV's which can be setup on one inverter. (1 master with 3 slaves)
Should be noted these batteries do not have heaters which IMO you should consider unless they will be in a warm place.
The secondary inverter will be merged into the hybrid inverters CT clamp so that its in effect dumb, and the primary will see the joint position in regards export/import and react accordingly.
This will probably explain it better than I have done, or maybe not
External INV in AC Coupling
kb.solaxpower.com
I wouldn't have recommended Solax until recently but the TOU stuff the inverters can now do its really good. The website now functions well giving all the info you would want.
Make sure you get a real time capable wifi module if you want that functionality as the default is (was could have changed) the 5 minute interval one.
Is it the Solax X-ESS G4 system? Its what I have and has the benefits of looking like an all in one but actually being modular.
(Matebox pulls all the wiring, breakers etc into one box so no external switches but if something fails you can swap out a component)
It may not be though as I dont think the 5kw batteries will integrate with this system, it uses the newer 3.1kwh batteries.
Which were limited to 12kwh but you can now run 8 via a parallel box, so you can do combinations of 3,6,9,12 without or 18,24 with
gazanimal had a 31 panel system fitted. yours is only 20
gazanimal has a 10kwh battery. yours is a 20kwh battery
it's approx £3k per 10kwh of battery capacity
panel fitting is approx £150-200 per panel...you're down south so you're likely paying the higher-end of that range.
so you should be paying £13k all things being equal, for a 20 panel 20kwh battery system
if you're getting a 20 panel 10kwh battery system, you should be looking at 10k
anything else and you're being gouged. in which case, i have a bottle of snake oil you might be interested in...
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First off - hats off for your sig. I'm a huge DCC fan!I've got solax so can say why the 7.5 + 3, its because the largest single phase inverter is a 7.5
Has your installer quoted for a matebox? If so then they can easily change that for a matebox advanced and that will give the whole house EPS, its about £600 to do that.
If your having this type of system your batteries will be linked to a primary inverter thats attached to the matebox, and ultimately the batteries.
The second inverter will be attached to the incoming in effect with only the primary having direct access to the batteries. 20kwh is probably the 5 HV's which can be setup on one inverter. (1 master with 3 slaves)
Should be noted these batteries do not have heaters which IMO you should consider unless they will be in a warm place.
The secondary inverter will be merged into the hybrid inverters CT clamp so that its in effect dumb, and the primary will see the joint position in regards export/import and react accordingly.
This will probably explain it better than I have done, or maybe not
External INV in AC Coupling
I wouldn't have recommended Solax until recently but the TOU stuff the inverters can now do its really good. The website now functions well giving all the info you would want.
Make sure you get a real time capable wifi module if you want that functionality as the default is (was could have changed) the 5 minute interval one.
Is it the Solax X-ESS G4 system? Its what I have and has the benefits of looking like an all in one but actually being modular.
(Matebox pulls all the wiring, breakers etc into one box so no external switches but if something fails you can swap out a component)
It may not be though as I dont think the 5kw batteries will integrate with this system, it uses the newer 3.1kwh batteries.
Which were limited to 12kwh but you can now run 8 via a parallel box, so you can do combinations of 3,6,9,12 without or 18,24 with
Thanks for this really detailed answer. I'm waiting to find out what he proposes to allow us to run the house off the batteries. Seems a bit daft having batteries and not being able to access them in the event of a power cut when we have no way of heating the house other than the ASHP.
Your single phase point re the inverter makes sense. We've a very old setup and I really don't want to have to upgrade the supply.
Your explanation and that diagram are really useful - thank you. Does this mean that I can only grid charge the batteries at 7.5kw? I'm thinking ahead if I want to start charging overnight etc. in the winter.
The batteries would be in a well insulated garage. It gets cold in there but not as cold as outside. Should be OK without heating?
The TOU stuff looks good, and it seems there's integration to Home Assistant. Which dongle do you mean? There's one I've seen for about £40.
Thanks - that makes sense.
Man of Honour
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Not sure.
D0.535-A0.212 seems to be the culprit. The battery is on firmware 3020 and was on it and working.
Meant to say, this is the kit he's offering:I've got solax so can say why the 7.5 + 3, its because the largest single phase inverter is a 7.5
Has your installer quoted for a matebox? If so then they can easily change that for a matebox advanced and that will give the whole house EPS, its about £600 to do that.
If your having this type of system your batteries will be linked to a primary inverter thats attached to the matebox, and ultimately the batteries.
The second inverter will be attached to the incoming in effect with only the primary having direct access to the batteries. 20kwh is probably the 5 HV's which can be setup on one inverter. (1 master with 3 slaves)
Should be noted these batteries do not have heaters which IMO you should consider unless they will be in a warm place.
The secondary inverter will be merged into the hybrid inverters CT clamp so that its in effect dumb, and the primary will see the joint position in regards export/import and react accordingly.
This will probably explain it better than I have done, or maybe not
External INV in AC Coupling
I wouldn't have recommended Solax until recently but the TOU stuff the inverters can now do its really good. The website now functions well giving all the info you would want.
Make sure you get a real time capable wifi module if you want that functionality as the default is (was could have changed) the 5 minute interval one.
Is it the Solax X-ESS G4 system? Its what I have and has the benefits of looking like an all in one but actually being modular.
(Matebox pulls all the wiring, breakers etc into one box so no external switches but if something fails you can swap out a component)
It may not be though as I dont think the 5kw batteries will integrate with this system, it uses the newer 3.1kwh batteries.
Which were limited to 12kwh but you can now run 8 via a parallel box, so you can do combinations of 3,6,9,12 without or 18,24 with
Soldato
- Joined
- 4 Aug 2007
- Posts
- 22,395
- Location
- Wilds of suffolk
If the setup is as I say then yes you would be limited to 7.5kw on charging.
But 20/7.5 is under 3 hours, which should mean your fine on any cheap overnight tariff.
Unfortunately the going off when the grid goes off is the default UK position and installers seem poor at offering it. And people assume it will all work of the grid goes out.
If your garage is insulated and not super cold your probably fine.
Oh forgot those batteries, one thing about Solax is they keep producing new stuff.
They look like an evolution of my batteries in a way, I have the 3.1s and those you list do have heating. (Its in the installer menu to turn on and off and set a schedule but plenty of use know the installer password)
No matebox on there, and I am not sure if it works with that newer battery system.
There is an automated EPS switch as well they make so if this doesn't do the stacking thing like mine with the matebox then they can use that.
That 3kw inverter is a strign inverter so its only panels as such i expect the 7.5 will be limited to 7.5kw for battery charging. The specs are 7.5 for that one.
I actually spotted a new inverter which might be worth a look, X1-VAST which is a single 10kw inverter with dual battery inputs and 4x MPPT also seems to be EPS built in.
Ah that X1-VAST looks pretty sweet. I'll mention it to him tomorrow. Thanks!
Do you think this is a fair price:
14 x
Enphase IQ8 MC Series Microinverter
0.33 kW
|
Total 4.55 kW
1 x
Enphase IQ Battery 5P
5 kW AC output
|
5 kWh storage
14 x
Aiko Neostar 2S 460
460W
Total 6,440W
£8,895
There will be some losses with a setup like this - the micro inverters probably can't handle the full production of the Aiko panels on a sunny day, on top of that there are three AC/DC conversions for energy that goes solar->battery->home. I hope the micro-inverters can compensate for that with better handling of shadows.
Enphase
14 x panels
1 x IQ Battery 5P
5 kWh storage
Primary hardware included in this bespoke package14 x
Enphase IQ8 MC Series Microinverter
0.33 kW
|
Total 4.55 kW
1 x
Enphase IQ Battery 5P
5 kW AC output
|
5 kWh storage
14 x
Aiko Neostar 2S 460
460W
Total 6,440W
£8,895
There will be some losses with a setup like this - the micro inverters probably can't handle the full production of the Aiko panels on a sunny day, on top of that there are three AC/DC conversions for energy that goes solar->battery->home. I hope the micro-inverters can compensate for that with better handling of shadows.
@tamzzy @Marakith
Just for clarity on my system, I did a smidge of haggling and negotiating and my system is as follows:
32 x 460w panels (14.72kw) - Split between 2 roof spaces (Rear has 21 panels - Front has 11)
10kw Fox Hybrid Inverter
10.36kw Fox EP11 Battery
All the ancillary items + scaffolding + DNO application + fitting
Price £11,200
Just for clarity on my system, I did a smidge of haggling and negotiating and my system is as follows:
32 x 460w panels (14.72kw) - Split between 2 roof spaces (Rear has 21 panels - Front has 11)
10kw Fox Hybrid Inverter
10.36kw Fox EP11 Battery
All the ancillary items + scaffolding + DNO application + fitting
Price £11,200
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Jelly! That's a stonking deal!
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That's a hot deal
If somebody didn't follow the conversation, the installer is FutureProofSolar.
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Do you have shading issues?
Ah ace!That's a hot deal
If somebody didn't follow the conversation, the installer is FutureProofSolar.
I got this from Future Proof. Clearly room to haggle
Were you happy with the install?
21 x Aiko 460w all Black panels with 30 year output warranty
Hanchu 6kw inverter with 12 year warranty
Two Hanchu 9.4kw batteries with 12 year warranty
Hanchu gateway to provide power in the event of a power cut.
Scaffolding to Two sides
Napit electrical certificate
HIES insurance backed warranty
MCS accredited install
£13600
To be fair, I’d suggest that this is broadly comparable to the £11,200 price.
10 panels installed is cheaper (materially) than 10kwh of battery plus a gateway device.
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The problem is he's already had 10 quotes. If everyone in the area is is offering the same sort of ballpark, then he's kind of stuck. I guess he could go further afield, but they'd likely bump the cost up to take the travelling into consideration.gazanimal had a 31 panel system fitted. yours is only 20
gazanimal has a 10kwh battery. yours is a 20kwh battery
it's approx £3k per 10kwh of battery capacity
panel fitting is approx £150-200 per panel...you're down south so you're likely paying the higher-end of that range.
so you should be paying £13k all things being equal, for a 20 panel 20kwh battery system
if you're getting a 20 panel 10kwh battery system, you should be looking at 10k
anything else and you're being gouged. in which case, i have a bottle of snake oil you might be interested in...
I've had 3 local installers quote so far and they're all very similar prices, and all higher than I was hoping to see based on this thread. I'm on the south coast thoughts soon perhaps paying a premium compared to up north.