Domestic solar PV quotes 2018

AidenL · 24-04-2019 10:20AM

kceire wrote: »

I also used the lads there.

Happy with everything?

Gumbo · 24-04-2019 11:08AM

AidenL wrote: »

Happy with everything?

Yeah. I got mine 2 years ago before any grants or anything so currently getting the funds together for battery storage. Theres only so much hot water I can use.

I think I sent about 9kwh back to the grid yesterday after filling my water tank.

unkel · 24-04-2019 11:21AM

Have you explored how hot your cylinder is getting and how hot it is allowed to be set? My max temp was set for 64C, while the manufacturers max recommendation was 85C (in both cases you really need an anti-scold valve fitted, but this is not expensive). I got caught out by my high pressure pump (for my pumped shower), which is only rated for 65C, so I could not up the temps in my cylinder

If you are allowed, it could mean your PV excess might build up say a 2 day buffer instead of a 1 day buffer, which will save you substantial money

But if you're installing a battery anyway, that's probably a bit of a moot point

Gumbo · 24-04-2019 11:30AM

unkel wrote: »

Have you explored how hot your cylinder is getting and how hot it is allowed to be set? My max temp was set for 64C, while the manufacturers max recommendation was 85C (in both cases you really need an anti-scold valve fitted, but this is not expensive). I got caught out by my high pressure pump (for my pumped shower), which is only rated for 65C, so I could not up the temps in my cylinder

If you are allowed, it could mean your PV excess might build up say a 2 day buffer instead of a 1 day buffer, which will save you substantial money

But if you're installing a battery anyway, that's probably a bit of a moot point

Have my Cylinder set to 65 degrees too.
Both bathrooms are electric showers with internal pumps also.

Usually with a full cylinder we can get 2 days shower use in fairness (200L well insulated cylinder).

KCross · 24-04-2019 12:32PM

kceire wrote: »

Next Gen Power

My quote from them for a 3.5kWp system (no battery or diverter) was €6800 after grant.

Prices are still too high, imo.

unkel · 24-04-2019 12:38PM

KCross wrote: »

My quote from them for a 3.5kWp system (no battery or diverter) was €6800 after grant.

Prices are still too high, imo.

Agreed that is a silly high quote. Maybe a difficult installation? Did you get other quotes?

For that sort of money other people in here have got 4-5kWp systems with battery and diverter - see the posts in this thread

KCross · 24-04-2019 12:50PM

unkel wrote: »

Agreed that is a silly high quote. Maybe a difficult installation? Did you get other quotes?

For that sort of money other people in here have got 4-5kWp systems with battery and diverter - see the posts in this thread

Not a difficult install although I think they do charge more for a slate roof.
Should add that I asked for dual orientation, so that might add a little to it but doesnt justify the price either way.

I got loads of quotes. Cheapest I got for that size was about €5200. Still too high in my book.

DrPhilG · 24-04-2019 01:09PM

I'm back on the trail again for a system, anything I need to check? I've looked into the panel, inverter and battery warranties.

Do I need a hybrid inverter? What are the benefits of that? Is there anything in particular I need to be able to charge the battery at night rate and discharge during the day?

Basically is there a checklist of questions to ask the installer?

unkel · 24-04-2019 01:21PM

KCross wrote: »

I got loads of quotes. Cheapest I got for that size was about €5200. Still too high in my book.

Yes far too high. If the SEAI installers aren't playing ball, you can do a PV only install yourself with or without the help of a roofer to install the panels, get an electrician to hook it up and you are talking total cost of under half of what you were quoted for 2*6 300W panels for 3.6kwp, Solis 3.6kW dual mppt string inverter, cables, disconnects, mounting, RCBO.

KCross · 24-04-2019 01:32PM

unkel wrote: »

Yes far too high. If the SEAI installers aren't playing ball, you can do a PV only install yourself with or without the help of a roofer to install the panels, get an electrician to hook it up and you are talking total cost of under half of what you were quoted for 2*6 300W panels for 3.6kwp, Solis 3.6kW dual mppt string inverter, cables, disconnects, mounting, RCBO.

Yea, I am going to go that direction. I thought I had a roofer lined up but he fell through. Apparently he does work for one of the registered companies and didnt want to go inside them! :mad:

I have a quote for the material and I have a spark lined up.

I dont want to do the roof stuff myself and I dont have the roof ladders etc for a slate roof so I'd rather pay someone who is equipped and experienced at it than risk the integrity of my roof.... so I'm searching for someone at the moment.

If anyone knows a willing roofer in the Cork area send me a PM please.

unkel · 24-04-2019 01:36PM

I wouldn't have touched slate myself either. It's more complicated, slates are more delicate, you need to cut tiles and you need to use flashing. Make sure you get a good roofer.

uck51js9zml2yt · 24-04-2019 03:52PM

Has anyone found any reasonable material suppliers that you can give links to?

Looking at the option of a self install using roofers etc.

unkel · 24-04-2019 03:57PM

I don't think we are allowed to put up links to suppliers here

uck51js9zml2yt · 24-04-2019 06:53PM

unkel wrote: »

I don't think we are allowed to put up links to suppliers here

Donny need to know the prices they quoted, just who people are using.
Next gen have already been mentioned in the last few hours.

AidenL · 24-04-2019 07:50PM

So, I pulled the trigger today for what I was quoted for.

Installation should be 6th May or no later than the end of the week.

Hope I’m doing right!!!

niallers1 · 24-04-2019 07:55PM

AidenL wrote: »

So, I pulled the trigger today for what I was quoted for.

Installation should be 6th May or no later than the end of the week.

Hope I’m doing right!!!

Good man. You are.

conor_mc · 24-04-2019 08:51PM

AidenL wrote: »

So, I pulled the trigger today for what I was quoted for.

Installation should be 6th May or no later than the end of the week.

Hope I’m doing right!!!

Was your quote 12k including vat?

wexfordman2 · 24-04-2019 09:20PM

AidenL wrote: »

So, I pulled the trigger today for what I was quoted for.

Installation should be 6th May or no later than the end of the week.

Hope I’m doing right!!!

Happy days, keep us posted.

Gumbo · 24-04-2019 09:38PM

conor_mc wrote: »

Was your quote 12k including vat?

Yes minus grant so €8200 nett (as posted by the user himself).

AidenL · 24-04-2019 09:49PM

conor_mc wrote: »

Was your quote 12k including vat?

Yes.

conor_mc · 24-04-2019 10:22PM

AidenL wrote: »

conor_mc wrote: »

Was your quote 12k including vat?

Yes.

Thanks, interesting because I was quoted a higher price for a smaller system by the same company. Might follow up and see what they can do.

€10.8k after grant, incl vat for:

10x 325w Q-Cells Solar PV Modules/Panels 1x 3.6kw Hybrid Inverters
2kwh Hybrid Batteries (sic, think this was 1x2.8kwh)
1x eddi Power Diverter
1x Emergency Isolation
1x BER Assessment

garo · 24-04-2019 11:58PM

Got my first quote:
4.2KW install with
6 KW inverter and
4.8KWh battery
Solar iBoost
BER, running wires to fusebox, all the paperwork etc. etc.

8700 inc VAT net of grant.

wexfordman2 · 25-04-2019 12:29AM

garo wrote: »

Got my first quote:
4.2KW install with
6 KW inverter and
4.8KWh battery
Solar iBoost
BER, running wires to fusebox, all the paperwork etc. etc.

8700 inc VAT net of grant.

So, 10,800 before grant?

As was suggested to me when I got a.similar quote, bargain them up to a slightly.larger system up to 6kwp solar.

Also, query the usable capacity of the battery, for example your 4.8kwh battery may only provide 90% of that as useable power, so 4.3kwh usable.

Post up the make and type.of inverter and battery too

DrPhilG · 25-04-2019 12:25PM

This is my quote and details:

4kw Solarwatt glass/glass panels
Growatt SPH 360 inverter
4.8kWh (2 x 2.4kWh) Pylontech US2000 batteries
Harvi
Eddi
Zappi charger

Supplied and fitted €11900
Minus solar/battery grant (€3800) and charger grant (€600) = €7500 to me.

Installer is sorting the solar grant so I'll pay him €8100, I'll claim the Zappi grant myself.

Thoughts on the kit and price?

PS please don't hit me with a flood of PMs for the installer details, I'll not be happy to recommend someone until the job is done and dusted!

KCross · 25-04-2019 12:35PM

Phil, Is it possible in your case to use wired (instead of wireless) connections between the Zappi and the grid/Solar?
i.e. take Harvi out of the equation. With wireless you always have the potential for interference as has been detailed on this thread already.

imo, a wired connection will always be better and more reliable than a wireless connection but it is, of course, dependent on your specific circumstances as to whether that cable can be run without digging half your site!

Im sure Harvi works fine for people but if its possible to go wired I would do that.

I dont have an opinion on your price. Its really down to how you will be able to utilise the energy and what payback you expect to see. Have you run the numbers? What payback period do you expect? Or is it more an environmental decision?

DrPhilG · 25-04-2019 12:39PM

KCross wrote: »

Phil, Is it possible in your case to use wired (instead of wireless) connections between the Zappi and the grid/Solar?
i.e. take Harvi out of the equation. With wireless you always have the potential for interference as has been detailed on this thread already.

I'm not sure as I don't fully understand the system. Would that require a cable run back to the house?

My panels are going on the garage, and the battery, Zappi, inverter etc will be installed there too.

Running lines overhead back to the house isn't an option.

DrPhilG · 25-04-2019 12:47PM

KCross wrote: »

I dont have an opinion on your price. Its really down to how you will be able to utilise the energy and what payback you expect to see. Have you run the numbers? What payback period do you expect? Or is it more an environmental decision?

I ran the numbers a while back and got a payback time of just under 8 years. Plus the benefit of plenty of hot water.

Does the kit all look good enough? I'm flying blind in terms of the quality of it. Those panels are a fair bit more expensive but have a much longer warranty. I probably would have went cheap but my wife is a stickler for quality (I mean look at her choice of husband) so we will go the extra mile.

KCross · 25-04-2019 12:59PM

DrPhilG wrote: »

I'm not sure as I don't fully understand the system. Would that require a cable run back to the house?

My panels are going on the garage, and the battery, Zappi, inverter etc will be installed there too.

Running lines overhead back to the house isn't an option.

Zappi monitors the incoming ESB mains and the SolarPV generation as well as the cars demand. And it juggles those 3 things to get the best out of it for you.

If the mains, panels and Zappi are all in the same building then you might be able to used wired connections. Its easier for the installer to go wireless so they might push for that. I'd push for wired, if possible.

The mains monitoring has to be done either from the mains meter box or at/near your consumer unit (i.e. before the supply goes to any sockets/appliances etc). Maybe in your case both of those are in the house and everything else is in the garage so maybe that wont work for you?
How does the garage gets its electricity supply? There might be a duct where they can push a cable through?

KCross · 25-04-2019 01:08PM

DrPhilG wrote: »

I ran the numbers a while back and got a payback time of just under 8 years. Plus the benefit of plenty of hot water.

Thats basically saying you expect to save about €1k/yr on your electricity bill?
I'd be skeptical of an 8yr payback.

Is payback time important to you?

DrPhilG wrote: »

Does the kit all look good enough? I'm flying blind in terms of the quality of it. Those panels are a fair bit more expensive but have a much longer warranty. I probably would have went cheap but my wife is a stickler for quality (I mean look at her choice of husband) so we will go the extra mile.

The spec looks decent in terms of kW's.
I dont have any experience of the panels, inverter etc but as long as they have a decent warranty and a backup service in Ireland you should be fine.

DrPhilG · 25-04-2019 01:24PM

KCross wrote: »

Thats basically saying you expect to save about €1k/yr on your electricity bill?
I'd be skeptical of an 8yr payback.

Is payback time important to you?

Apologies, typo. It was just under 9.

I do expect a pretty big saving per year, car charging, tropical fish tank, wife who loves the tumble dryer etc. So even in the daytime I have a fairly high usage.

My average bill across the year is about €140 a month.

Domestic solar PV quotes 2018

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