Domestic Solar PV Quotes 2022 - No PM requests - See Mod note post #1

It looks like you can only fit 6 panels on your South roof and 4 panels on the South East roof beside the chimney.

Currently I am installing KStar inverters with the matching 5KW batteries. I personally believe the battery is by far the best option for PV and not to rely 100% on feed in tariff as that could easily change.

Typical cost for 10 panels 4.1KW , Kstar 3680KW hybrid, 5KW battery and Eddie diverter is €12,500 inc VAT before €2,400 SEAI grant. Without battery I would use another brand inverter (possibly Huawei 4KW) the cost would be €10,400 inc vat

Other notes There is 3 people home daytime. We have an EV but mileage is very little. EV would be home each day. Car charger is zappi so myenergi hot water diverter makes app sense. All showers are pumped from hot tank.

I don't know if battery makes sense for my use case.

I would prefer 7kW inverter.

With split roof I think that means evening generation will be impacted once sun does not hit south east roof unless optimisers used. ?

On the output part. Yeah, that’s normal this time of year afaik. I’ve similar setup with a 4.9kWp E/W split (but E is bulk in my case). I’m only live 2+ months myself. I’m not getting above 2.5kw and even those are brief ‘peaks’ at the mo (bar weather is changeable of course). E/W won’t get the same peak of S but will span for longer of the day. So from 12pm onwards I get better output.

Even the scorcher in Aug (pure blue skies for a week) I was maxing at 3.2kw (from 4.9kWp setup). But it held that for 3 hours and was a perfect curve. Ok, the heat was reducing that output too for everyone.

@Jonathan mentioned that E/W arrays suffer more than S in winter. So is what it is for those of us without a S roof. That said, we get a longer span and if weather is muck early or late and then clears, we benefit.

@bullit_dodger said that NW will suffer a lot in winter, which mine is (more than W) and I can see that stats wise. Helps extend the power in the longest days though.

Thanks all for the comments, so all looks normal then,

Yeah, I see a load popping up in Inchicore + Drimnagh. Roughly same age houses you’re taking about. 2+3 bed terraced house. Some have fit 10 on each side of the roof depending on the width (5 wide, 2 high). They are 1m wide. Terraced ones fit more than end of terrace (I’m end of terrace and house is old). 

Measure the width of your house in meters from outside and gives a rough idea how many you can fit. Can't go right to the edge for grant rules. But installers will tell you once they start to quote. 5.5m wide would likely fit 5 panels width wise. Less than that and you’re on 4 panels width…and so on.

Rock on and get quotes :) 

I don’t see it coming down to people being right or wrong of the cost you should pay. It all comes down to what works for people price wise.

The 'rule of thumb' pricings are targets. And I paid more when I paid the deposit ~5 months ago. But I was ok with that. So with any target, people could get better, same or worse. On smaller setups the economies of scale aren’t there for installer so labour will be a higher % overall.  Smaller setups can be slow – I am one due to a small roof and no other space to put panels and had to use 4 roofs for 16 panels (to max the roof out). Took days more of install time.

Solar as a service is likely a lower cost for smaller setups. But seems to be hit and miss in terms of follow up from people asking for info. I never got those quotes as didn’t know about it at the time.

Some are getting that price or lower. But in general, we’re not seeing many on this thread I feel. Which tells us the price the market can demand. Solar is ‘hot’ right now (bad pun I know). And if rock bottom pricing means a competent sparks but who is new to solar, I personally will pay more for a solar company with a history. Sure, I won't need them once it's setup most likely. But I'm paying them for a solid design as much as the installation itself.

I bought a 2nd hand EV a few months ago. And it cost more than I wanted to pay. But that was the market! So I had a choice to buy, or not. I didn’t panic and I shopped around and was happy with what I bought. I’m the same with my solar.  

Hi folks,

Received a first quote and would appreciate any feedback as I am new to this!

• 22 415watt panels, total system size 9.13kw.
• 6kw Inverter
• 5kw battery

Total after grant is €17,200.

If I have followed the rule of thumb correctly, €1.2k x 9.13kw + 2x2.5kw batter would come just shy of €13,000 after grant.

Front of house is South West facing and would have 10 panels, and 12 on the NW side.

Our annual usage is approx 8000kwh and the proposal estimates we could generate just shy of 7000kwh in a year with this setup.

Any inputs or feedback would be appreciated, thank you.

Hi,

I have accepted the exact same quote, to the euro, I presume from the same supplier! The panels excluding the battery are close to the "rule of thumb" value. I was quoted for a 5kw Huawei battery which had a value of €5k in the quote, the Huawei battery is rated for a high number of charges and discharges than some of the cheaper makes. My engineer brother works with Huawei equipment in commercial solar, they are considered the most reliable brand. I was happy to pay the extra for equipment which is less likely to fail.

I removed the eddi as I think it offers low value for money with a battery system.

You can buy a 5Kwhr battery from midsummer.ie (granted ex-vat) for €2333

Midsummer Renewables

Don't forget that midsummer are making a few quid as well at €2333, so the solar installers/suppliers who get the "reseller rate" would getting the batteries cheaper than what midsummer are flogging them for. Just saying.....

Panels are ~€250 each (including vat) for 400w, so ~€600/1Kwp if you were to buy them yourself. Then there is install costs (labour), mounting systems, etc. It's right and fair that the suppliers make a profit, but the formula/guideline of €1.2K per 1Kwp is probably not too far off what they should be charging. Again, they get them cheaper than €250 a panel, probably closer to €150 - so the markup at €1.2K per Kwp is pretty generous I think.

Now however, if the market is gouging people a bit becuase of the energy crisis and the demand is through the roof (excuse the pun), that's another story....

For anyone with a Huawei system, I have just ordered a 5Kw battery from Aliexpress for about €1,950. If VAT gets added this could rise to €2,400.Still way better than some of the prices I have seen around for them.

The description on the website is not great. They give you 3 options: C0, B0 and box. I am presuming these are 5, 10 & 15kw sizes.

Box is the cheapest so I went for that. They say it weighs 63kg which is the same weight as the 5kw battery including BMS.

It's a bit of a gamble but hopefully it includes everything I need

https://www.aliexpress.com/item/1005004720996374.html?spm=a2g0o.order_detail.0.0.3029f19c92A8jc

Am actually slightly worried now that it could be to good to be true. I have sent them a message to clarify anyway so will pass on what i get back.

Fingers crossed I suppose

Maybe @johnathan might want to move this to a more suitable thread?

I just sent you what came up when I first clicked the sellers business info via PM , best of luck with it.

Not an installers PM @Jonathan 😂

I don’t think you bought a battery. Looks like a backup box. Might want to look at cancelling the order

https://suministrosdelsol.com/en/huawei-battery-photovoltaic/1125-16967-backup-huawei-box-b0-single-phase.html

I don't know what the seller means by each of their options, but the Huawei part codes are

Luna2000-5kW-C0 for the BMS

Luna2000-5kW-E0 for a 5kWh battery module.