Domestic Solar PV Quotes 2024 - No PM requests - See Mod note post #1

Paying for the battery from the installer is a bit of a sting. I'm getting priced at €4,200 for 2 x 5.3kWh batteries as part of my system. solarboss charge just under €2,100 for a battery, so I don't really mind paying for the pro-install just to get everything running. Going through the DIY process is something I am sure I will do down the road.

4kWp system is small-ish. I'd suggest get larger if the roof + budget allows. If it's South facing it will produce close to 4000kWh a year (rough rule of thumb). If it's an E/W (like I have, it's ~75% output of a South). I've a 5kWp system and could use more but roof is maxed out.

A house uses anything from 3000kWh (for a lean house) upwards a year. EV uses ~2000kWh for 15000kms driving a year. Electric heating uses huge times more than both of those.

Last year we used 15,000kWh. 65% night rate. We are a 2 EV home. We have gas central heating and a stove for a bit of winter luxury.

9 panels is the max I could fit on the south facing roof. The batteries will be used to charge on night rate and supplement the days use which I average to be 15kWh.

I will add another string to the shed roof when I extend it later in the year. I reckon I could easily get another 6 or 7 panels and another 4 if I place them onto my flat roof extension, but I may want to keep that roof for solar thermal. Still working out the best option.

I added the 7" panel comment. I noticed some of the quotes just had the more basic solis inverter with the tiny lcd readout. I made sure the proper inverter was quoted for.

Any chance you could PM me a couple of names please?

Hey folks I think my last question explained in a bit of a convoluted way so I'll try to simplify it in this post.

I'm based in Galway and have 2 quotes that I'm trying to decide between, here is a pic of the 2 quotes.

Both are pretty much identical the main difference seems to be glass on glass vs glass on foil panels. I've been finding it hard to get independent info on glass on glass vs glass on foil panels. The main benefit seems to glass on glass degrades slightly less and is more likely to protect against harsh weather. Since I live on the west coast close to the sea where the weather can be really bad and I wouldn't mind spending the extra bit of money if they were going to be more durable in the long run.

So I'm wondering does anyone have any experience of the glass on glass and if it's worth the extra €85 or so per panel. Thanks

i live 30 mins from the sea...not exactly coastal but i went for standard panels. personally if i was you i would go with company b.

you'll save 850 euro, gain 50 extra watts and any corrosion or degradation concerns will be covered by the 30 year performance warranty. if you google the jinko n type panel you'll see an article from australia talk about how they have excellent resistance to sea mist.

Yeah, they're both on the high side. When I was asking for quotes, I told them what equipment I wanted with regards to panels and inverters. Made it easier to compare them. I also think doing so shows them you know what you need and are shopping around, so you shouldn't get crazy quotes.

Company Im thinking of going with soon is seeking a 50% deposit of the full price of the installation not including the grant deduction. They say they fill out the paperwork for the grant but the grant is later paid to me after the post installation BER is complete. Is this all normal, bit miffed Ive to unexpectedly to find an extra €2,400 even if I will get it back in a few months time.

Also any tips for how to do due diligence on an installer, theyve very few Google reviews and I cant think of where or how to figure out what theyre like.

Why would you go with a company with very few reviews when there are so many companies with an excellent track record and tons of reviews online.

Why would you give such a company that much money with absolutely no safeguards? Am I missing something?

Strange question for people. When does a quote become too low and likely a company are planning to cut corners. I've 3 companies undercutting each others bids and not sure when bottom will be bottom...

I would try get nearly a couple of grand off that.

Thanks very much for the feedback con747 and keno-daytrader.

Including the Zappi and the changeover Switch sort of threw me but €15,400 (pre-grant) did seem expensive. I expect it's in the region of €14,000 (pre-grant) without both of them allowing €400 for the changeover switch and €1000 for the Zappi but maybe I should be allowing more for the Zappi (even as part of the PV install). Still a bit luke-warm on the Zappi .. have a PHEV so don't 100% need it now but of the mind to get it all done now rather than getting it at a later stage.

With Huawei equipment, I am looking at €1,200 extra on top of the €15,400 (pre-grant).. bringing the equivalent with Huawei equipment (incl Huawei backup box & changeover switch) to €16,600 (pre-grant).

I'm not sure on 10kW batteries, 5kW would be loads, use the grid as your battery (export tariff)

Regarding Zappi, are they that useful? Charge EV at night and export at a higher rate by day.

Why do people bother with changeover switches? Power cuts are rare in reality.

Doubt anybody gets 5 a year TBH.

I'm rural and it's very infrequent anyway.

Even at that a few hours later and it's usually back.