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Domestic solar PV quotes 2018

wexfordman2

Hi,

Thinking this might be a worthwhile information point and reference.

Good to get an idea of prices, and see if the recent grant is causing anomies etc.

If anyone cares to post up quotes they got (but excluding the company/supplier to keep mods happy).

We should show quote if system dimension, something along the lines of

4kw solar with 5kw battery and diverter 9,900 ex vat
5kw solar with 5kw battery and diverter 11,200 ex vat.

Additional info
This was for a "premium" solar panel with 30 year warranty.

Provider is seai registered, so grant is apicable, and he claims HRI/vat refund available also, however I believe thats an error.

Payment terms
20% on order
Additional 50% prior to install
Remaining 30% post commissioning

Quite for market standard panels as follows

4kw with 5kw battery 8750 ex vat
5kw with 5kw batter 9750 ex vat

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[Deleted User]

garo wrote: »

Isn’t that where the inverter measures? On the input strings?

Output power.

Imported self-consumption at idle not registered usually.

unkel

Alkers wrote: »

€4925 Final cost after grant incentive

If you are serious, ring them (or better visit them) tell them you are ready to do the deal and make the down payment there and then and offer them 5 grand if they stick in one more panel.

You will have got yourself a super deal.

Alkers

Alkers wrote: »

Don't think so actually, will post once I get onto pc. Haven't gone ahead with anything this close to the budget.

As promised:
Option #1

8 x Bisol 375w Monocrystalline modules (3.0kWp)(All black modules)

Bisol Mounting system

Santon Fire Safety Switch

Santon Switch Gear

Sofar 3.0 kWp Inverter kitted to 2.4kWh Pylon Tech storage capacity

Costing

€7750(inclusive of VAT)

€3100 (SEAI Grant)

€4650 Final cost after grant incentive

Option #2

10 x Bisol 375w Monocrystalline modules (3.75kWp)(All black modules)

Bisol Mounting system

Santon Fire Safety Switch

Santon Switch Gear

Sofar 4.0kWp Inverter kitted to 2.4kWh Pylon Tech storage capacity

Costing

€8550(inclusive of VAT)

€3625(SEAI Grant)

€4925 Final cost after grant incentive

There were also more expensive (+€1k to each) using 4.5kWh batteries - I believe they were solax

garo

Isn’t that where the inverter measures? On the input strings?

[Deleted User]

garo wrote: »

Sep predicted: 355kWh
Actual: 350.9

Note this is power at the panel so does not take inverter inefficiencies into account.

Power at the panel. Interesting. Are you metering the panel DC input to the charge controller/inverter-charger?

garo

unkel wrote: »

I guess you can come back here on the first anniversary of your system and tell us if it did make the 3.53MWh (your system is 4kwp, right?)

I'll do the same, but I expect my 3.8kwp in sunny west Dublin (limited by my 3.6kW inverter) S/W (but mostly south) to have generated close enough to 3.6MWh, possibly even a bit more.

Sep predicted: 355kWh
Actual: 350.9

Note this is power at the panel so does not take inverter inefficiencies into account.

unkel

If I were you I'd go ahead straight away

Alkers

unkel wrote: »

Did you post those? I don't remember any sub 5k quotes for a battery system in this thread.

Don't think so actually, will post once I get onto pc. Haven't gone ahead with anything this close to the budget.

unkel

Alkers wrote: »

I've had quotes of sub 5k (post grant) for 3.75kW array with 2.4kWh battery and no diverter so I don't think my query was that mad?!

Did you post those? I don't remember any sub 5k quotes for a battery system in this thread.

air

Alkers wrote: »

I've had quotes of sub 5k (post grant) for 3.75kW array with 2.4kWh battery and no diverter so I don't think my query was that mad?!

That sounds great. Could you share the company name via PM?

Alkers

unkel wrote: »

I take it that's not a serious question? The cost of the materials alone would be close enough to the quoted prices before the grant and they sure ain't doing the install job for free

Of course it was a serious question, not everyone is fully up to speed on the individual pricing of each of the elements mentioned and it wasn't stated in the post so I queried it.

What is the performance increase of the listed items Vs the typical pyonlontech battery etc included in quotes.

I've had quotes of sub 5k (post grant) for 3.75kW array with 2.4kWh battery and no diverter so I don't think my query was that mad?!

garo

Good point on the bifacial bit. Ask if non-bifacial panels are cheaper.

One more thing. Confirm that these prices are after VAT.

unkel

I would generally ignore any but the cheapest panels. Any "upgrade" to a panel from a well known make, better materials, longer warranty, fancy features, etc. will increase the pay back time of the system and won't give you any noticeable benefits.

air

I wouldn't have thought there would be any benefit from bifacial panels when installed roof mounted?

My understanding was that they benefited from diffuse (or reflected) light hitting the rear of the panels, but surely something like an open ground mount would be required to facilitate this?

The first result I found when searching for them seems to confirm this.

Winterman1234

garo wrote: »

Yes agree. Those are excellent quotes. If the people giving those quotes know what they are doing that is far and away the best deal on this thread. Also agree about the 13th panel for maximising the subsidy and asking for the white withiut the Eddi. I assume the installation here will not require scaffolding because otherwise it is a steal!

Yes a bunglow with tiled roof so that helps, price for adding 13th panel is €250, which in comparsion to rest of quote I thought was abit high. I have asked for a price without eddi, but they seem to very much want me to keep this. They are to get back to me next week with price difference.
This company ask 50% up front and reminder on day of completion, which I suppose is far enough. Another company I talked to said final payment only made when grant received.

The only concern I have is that they have no installations around the north west, would be nice to see quality of their installations.

garo

Yes agree. Those are excellent quotes. If the people giving those quotes know what they are doing that is far and away the best deal on this thread. Also agree about the 13th panel for maximising the subsidy and asking for the white withiut the Eddi. I assume the installation here will not require scaffolding because otherwise it is a steal!

unkel

Hard to say but those quotes that Winterman got are about the best we have seen in this thread. Looks like now is a good time!

Charlie-Bravo

Will there be a bit of a lull over the winter season for installers? Would you get a better price when there's guys are not as busy, or is business motoring well?

unkel

Alkers wrote: »

Before or after grant?

I take it that's not a serious question? The cost of the materials alone would be close enough to the quoted prices before the grant and they sure ain't doing the install job for free

Alkers

Winterman1234 wrote: »

A few more prices today from one company,
prices including grant.

4kw array (10 x LG 400W bifacial), Solax 5kw hybrid inverter, Solax triple power 4.5kwh battery and eddi = €7491

3.8kw array (12 x JA 315W bifacial), Solax 5kw hybrid inverter, Solax tiple power 4.5kwh battery and eddi = €6291

3.8kw array (12 x JA 315W bifacial), Solax 5kw hybrid inverter, Solax triple power 6.3kwh battery and eddi =€6899

The batteries operate around the 100volt dc range not the typical 48V. Regarding the bifacial panels, both manufacturers state outputs ranging 5 -30% higher than panel ratings during direct sun conditions, not sure in real world conditions if there is actually any gain to be had. This is the first quote I received with the bifacial panels.

Before or after grant?

unkel

Big benefit of the 100V system is that even the smaller battery can charge / discharge at 2.5kW continously. That's a lot more than the 48V competition. It actually makes sense that while batteries are still expensive and people can only afford a 2-4kWh battery, to make them higher voltage.

Winterman1234

Solax website is currently giving me a 404, which may not be a great sign.

But details of solax hybrid x1 5kw inverter below

https://www.alma-solarshop.com/solax-power-inverter/982-hybrid-solax-inverter-x1-50t-hv.html

Winterman1234

unkel wrote: »

The second quote is very good value for money. Can they not stick a 13th panel in though for a tiny bit more money? You'd get an additional 200wp / €700 per kwp, or €140 subsidy. That's more than the cost of a panel (and there is probably not too much extra labour / materials required). Or do you not have the space for it?

Did you get any links to the spec sheets of the inverter and batteries? Most systems I have come across (in this thread) would be 48V. Would be interesting to see the specs for that system

I'd also try get a quote without the Eddi. If that shaves €500 off the bill, I would go without it. It would have been a waste of an investment if we do end up getting a FIT (which many say is quite likely)

Room is no problem, plenty of southeast facing roof space. Battery datasheet attached hopefully!

unkel

The second quote is very good value for money. Can they not stick a 13th panel in though for a tiny bit more money? You'd get an additional 200wp / €700 per kwp, or €140 subsidy. That's more than the cost of a panel (and there is probably not too much extra labour / materials required). Or do you not have the space for it?

Did you get any links to the spec sheets of the inverter and batteries? Most systems I have come across (in this thread) would be 48V. Would be interesting to see the specs for that system

I'd also try get a quote without the Eddi. If that shaves €500 off the bill, I would go without it. It would have been a waste of an investment if we do end up getting a FIT (which many say is quite likely)

Winterman1234

A few more prices today from one company,
prices including grant.

4kw array (10 x LG 400W bifacial), Solax 5kw hybrid inverter, Solax triple power 4.5kwh battery and eddi = €7491

3.8kw array (12 x JA 315W bifacial), Solax 5kw hybrid inverter, Solax tiple power 4.5kwh battery and eddi = €6291

3.8kw array (12 x JA 315W bifacial), Solax 5kw hybrid inverter, Solax triple power 6.3kwh battery and eddi =€6899

The batteries operate around the 100volt dc range not the typical 48V. Regarding the bifacial panels, both manufacturers state outputs ranging 5 -30% higher than panel ratings during direct sun conditions, not sure in real world conditions if there is actually any gain to be had. This is the first quote I received with the bifacial panels.

Batfink69

Stefs_42 wrote: »

Im Sligo based. so if you dont mind travelling a bit feel free to check out my system

I might take you up on that. Roofer has been and fitted the brackets for me. I'll fit the bars this weekend and then start looking at the electrics/panels.

Many thanks

Stefs_42

Batfink69 wrote: »

Bump...Don't mind travelling a bit to pick up some hints and tips if someone wouldn't mind me having a look around their setup?

Thanks all, Bren

Im Sligo based. so if you dont mind travelling a bit feel free to check out my system

unkel

You're starting to sound like a broken record, rolion.

How much does a lithium battery with 10kWh usable capacity cost? And about safety - a lithium battery inside your family home is a far bigger hazard than an AGM battery outside of your family home.

rolion

unkel wrote: »

Ioniq EV can charge at just 3A (760W) on the granny cable

I work from home most days and on a summer day I could plug it in and trickle charge all day, even on a fairly cloudy day

Can't be bothered with that though and the minimum on my EVSE charger is 20A (4.9kW), which even in full sunshine, will draw some power from the grid. Can't be bothered with that either so I am happy to just plug in at night.

I should have my big battery up before next spring, so I will most likely plug the car in on bright days when my battery is already full (at about 1PM I reckon) and then charge the car to 100% with solar PV only

Friendly advise: stay away from second hand plumb batteries in DIY systems.
If you are stubborn and still want to use them, make sure you and family are safe from them.
Save your "energy" and get a proper lithium setup that does more and better in terms of charging, discharging, capacity and lifetime.

garo

Thanks. I agree that a graph is easier to read.

So in summary either you babysit with a granny cable or you charge at night or at work or you see whether a smart charger makes sense. I suppose the min charge rate becomes a factor in vehicle choice then.