Solar panels and battery - any real world reccomendations?
- Thread starter GinG
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IIRC the Sunsynk ECCO will do 5kw output via solar or battery (max input 6.5kw via solar), does not need to mix.
a single Sunsynk L5.1 battery has a max output of 2.5kw, so two of these will allow max discharge to take advantage of the 5kw inverter
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Also need to consider where the batteries will be when thinking about charge/discharge rates. If you have them indoors within the house then nothing to worry about, but if you put them in a loft/outside/garage/other 'cold' space then performance can be a good bit lower during the cold months.
second battery install arranged.
that'll take me to 4.4kwp pv, 3.6kw inverter and usable total of 9.6kwh battery
then swapping to eco7 and charging the batteries overnight
that should put me fully off grid during the day time and can sell all the excess solar back to the grid
that'll take me to 4.4kwp pv, 3.6kw inverter and usable total of 9.6kwh battery
then swapping to eco7 and charging the batteries overnight
that should put me fully off grid during the day time and can sell all the excess solar back to the grid
Even Octous go might work out better for winter as the import is only 9p if you can cope with only 4 cheap hours. The export is rubbish at only 8p so you want to be on flux or agile over the summer.
It’s all about getting the import to as low as possible for winter.
It’s all about getting the import to as low as possible for winter.
That's decent, probably worth sticking with that if you're happy with it.
yeah, i'm pretty sure i'll stick with eon as i just want a "set and forget" system and not one that i have to continually manipulate to get the best £££
eon's tariff also doesn't need a compatible charger and the cheaper rates is for the whole property, not just for the ev charger
Evening,
Work has the Octopus EV Salary Sacrifice scheme which has peaked my interest. Low and behold that has sent me spiralling into the world of solar and battery storage.
I live in a new build (4 years old) and in the builder infinite wisdom they decided against running any significant power supply into the garage, only extended the downstair main ring. Power comes into the builder smack bang in the centre and getting to the garage is going to be a royal pain in the rear.
So my thought process is.. if I'm going to do it, let's really do it.
I reached out to Infinity Energy and they came back with a proposal, this is what they suggested.
12 x Jinko 440W mono-crystalline solar panels
Renusol Variosole On-roof mounting system (10-Year Warranty)
1 x SolarEdge 5kW solar inverter
12 x SolarEdge S500B Power Optimisers
1 x Tesla Powerwall battery 13.5 kWh
If on-roof, 1 x Bird Protection
MID-approved generation meter
All DC and AC isolators, cabling, trunking, etc.
Roofing labour
Electrical labour
Scaffolding and access equipment
MCS Certificate (Solar aspect only)
5-year insured workmanship warranty (Solar aspect only)
Grid connection notification
Total fee for Solar Panel System: £6,667.89 inc. 0% VAT
Total fee for Battery Storage: £7,368.00 inc. 0% VAT
Our total fee, including all of the above, is: £14,035.89 inc. 0% VAT
What do people think? It's quite the total figure.
Work has the Octopus EV Salary Sacrifice scheme which has peaked my interest. Low and behold that has sent me spiralling into the world of solar and battery storage.
I live in a new build (4 years old) and in the builder infinite wisdom they decided against running any significant power supply into the garage, only extended the downstair main ring. Power comes into the builder smack bang in the centre and getting to the garage is going to be a royal pain in the rear.
So my thought process is.. if I'm going to do it, let's really do it.
I reached out to Infinity Energy and they came back with a proposal, this is what they suggested.
12 x Jinko 440W mono-crystalline solar panels
Renusol Variosole On-roof mounting system (10-Year Warranty)
1 x SolarEdge 5kW solar inverter
12 x SolarEdge S500B Power Optimisers
1 x Tesla Powerwall battery 13.5 kWh
If on-roof, 1 x Bird Protection
MID-approved generation meter
All DC and AC isolators, cabling, trunking, etc.
Roofing labour
Electrical labour
Scaffolding and access equipment
MCS Certificate (Solar aspect only)
5-year insured workmanship warranty (Solar aspect only)
Grid connection notification
Total fee for Solar Panel System: £6,667.89 inc. 0% VAT
Total fee for Battery Storage: £7,368.00 inc. 0% VAT
Our total fee, including all of the above, is: £14,035.89 inc. 0% VAT
What do people think? It's quite the total figure.
It's expensive but you've basically picked the highest end equipment for a consumer installation which has prompted some questions:
Is this one roof?
Do you actually need solar edge - e.g. is there shading no your roof?
The Powerwall element is overpriced IMO. The equipment cost is only £5800 and there just isn't £1,500 of labour or sundry items to install it unless it is some ridiculously complex install, particularly when they will already have an electrician on site doing the solar.
Edit: as for the EV charger, where is your meter box? They can connect the charger there if needed.
Is this one roof?
Do you actually need solar edge - e.g. is there shading no your roof?
The Powerwall element is overpriced IMO. The equipment cost is only £5800 and there just isn't £1,500 of labour or sundry items to install it unless it is some ridiculously complex install, particularly when they will already have an electrician on site doing the solar.
Edit: as for the EV charger, where is your meter box? They can connect the charger there if needed.
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They certainly know how to charge for a Tesla Powerwall - you can buy 30kWh of storage for £6000 or 15.5kWh for £2500, admittedly the Powerwall is a lot more refined, has a built in inverter and gives whole house backup, but is it really worth that much, I don't think so.
Do you have shading issues?
These guys are the same people who installed mine. You won't be disappointed with the workmanship but they arent the cheapest around.
'a lot more refined' is putting it mildly
This is where we tend to disagree, I don't think the product itself is over priced. Sure you'll be able to buy the same capacity for half the price but the cells are only half the product and of course you could put together a DIY solution for a lot less.
The gateway alone is £800 and is optional, 6kw inverter isn't cheap, its for a liquid heating/cooling system, the systems are scalable, its outdoor rated, has excellent software, a long warranty, proven reliability and decent support. None of that stuff is free.
@danb21t - an alterative but similar option to the Tesla Powerwall is the GivEnergy All In One, its basically the same product but slightly cheaper. It lacks a liquid heating/cooling system but its a few hundred cheaper and has a slightly better ecosystem (charger, smart plugs etc).
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It’s a mix of south east and south west, no shade other than natural shade from the transition of the sun over the property.
Meter and the consumer unit are at the same location, under the stairs bang in the middle of the house.
As above
Good to know regarding their workmanship, they get rave reviews online
Multiple roofs will add a bit of cost and Solar Edge is great but if there isn't any shading, its not really required.
You could use a standard string inverter which would be cheaper and it doesn't even need to be particularly clever either as the Tesla Power wall does all the hard work.
Urgh... that will be a pain in the rear for the Tesla system as well unless you have the space inside the house for it next to the meter. Most people stick them outside.
You could use a standard string inverter which would be cheaper and it doesn't even need to be particularly clever either as the Tesla Power wall does all the hard work.
Urgh... that will be a pain in the rear for the Tesla system as well unless you have the space inside the house for it next to the meter. Most people stick them outside.
Well given the VATfreeness you can get two of these for £4k (31kWh) and a Victron Mulitplus II 8000 with 100A transfer switch for the same price as a Powerwall not installed. I'd take that system with some education over Tesla, and you can have it designed in to support your whole house if you want.
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