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

@Freewheel when you say you can only fit 6 panels, what's the reason behind that? Is that down to roof space or your budget? Wanna send us pics showing the roof and orientation? Any flat roofs or large garden or large shed to add more too?

Asking as one company wanted to sell us a 7 panel system (all we would fit they said) and we got 16 up! Another said 8-9 would be max. Sales people just wanted an easy sale. Design didn't suit us. So went elsewhere. And it's a veryyyyyyy small house so small roof (but we used flat extension roof too).

More you can fit now, the better. A lot of the cost is for the roof part. So if they are on the roof anyway...the cost to add more is less.

Price wise a zappi install and fit is at least 1.5k from quotes I got. Get 600 back in grant.

If you're only getting a 6 panel system and can't upgrade that in time, the Zappi might be overkill price wise. It sends spare power to car but needs 1.4kwh free and you won't have that with only 6 panels (or not often). So could go for a cheaper car charger instead that isn't able to feed from free solar power. Means you'd charge forever on cheaper night rate, not via solar. I only have a Zappi so hope I am right in what I said here. Big reason I wanted more panels was to be able to get the spare 1.4kwh to trickle charge our EV - and it works well. It takes more if more available. Car needs to be in driveway during the day!

And Eddi / water diverter is about 500 to buy plus they need 1-2 hours (guessing) to install and link to Zappi. Also may need the Myenergie Harvi (hub to link Zappi and Eddi). About 70 quid to buy and 20mins for them to setup.

If your max is 6, then Saas is your best bet price wise based on quotes for small systems here

Just onto another supplier there who is coming out for an inspection, they explained something I wasnt previously aware of that optomisers actually drop the capacity of the entire string so not sure if id even bother with doing 3 aspects now.

No he said that optomisers drop the total panel capacity to generate by 16% which I cant find any evidence of online, is anyone able to confirm?

If its true what I might see is possible if its a small string of 3-4 just go with micro inverters for each.

Maybe 1% or so - but that's about all. E.g. just to give the efficiency of the one that they sell on midsummer/solarcity

How are Tigo Optimizers Different From Other DC-DC Optimizers? – Tigo Help Center (tigoenergy.com)

99.6% efficient. Not sure where the 16% is coming from. Sounds "dubious" (read nonsense) to me.

That said, if you can avoid the use of optimizers that would be preferrable. Don't forget small strings with 3-4 panels have to get the "startup voltage" on an inverter before they will produce.

To be fair, they say it's that price, minus the grant that they'd apply for and claim so 10k to me in the end. But I don't think they can get the grant so dunno then....

Doesn't this meet the guide price of €1.2k/kwh, €2.5k for battery plus €550 for Eddie coming in at €10.1k after grant of €2.4k if applicable?

Yeah it would be a string of about 6-7 all with optomisers due to different aspect and the south facing roof with 3 of them has a chimney.

Just had that guy out and he point blank refused to put the 3 on the south roof and add optomisers.

Quoted me with 12k after grant for 9 x 415w jintec panels, huawei inverter and battery and eddi which I dont think ill be going with

To be honest i think he was actually trying to sell me on it but his refusal to give a good reason or evidence of his optomisers claim meant he was gonna have to kill it on price if I was gonna consider it, as you can see he did not.....

I got the feeling hes used to dealing with people who have done little to no research whatsoever so im very thankful for this thread as I was quickly able to get up to speed over the last week.

My goal is to cover my roof with as much as possible as it looks like after he did the measuring there if I did that Id be maxing out at 12 and not the 15 id previously hoped so for what I want its either 9 with no optomisers or 12 with 7 optomisers

Are you emailing or calling?

Not making excuses, I really hate bad communication, but when times are this busy it's always good to try and get them in person on the phone.

18 jinko panels tiger n type 7.2kwp

6hw sofar hybrid inventor

9.6kw dyness battery (big and ugly)

cabling works etc

slate roof

ber

all in €13,400 after grant taken out

Good to go for that? Tomorrows decision day

Using between 13,500 and 14,500 KWh annually.but hoping to lower that having altered heat pump setting upon advice.

we already have a solar tube system from when we built the house.

I’m monitoring usage at the minute and will do for the next 6-8 weeks. If the hp is making enough cheapish water great, if not I may ask them for an eddi before instal it should be a simple enough addition from what I understand.

I’m getting a very similar quote now from one of the more reputable companies on here.

17 x 370W panels (6kwp)

6kw hybrid inverter

5.1kwh battery

No EDDI

€12,500 before grant (€10,100 after grant).

I thought that fit the formula here:

€1,200 x 6kwp = €7,200 + €550 + €2,500 = €12,450????

Yeah we’ve had some discussions on what we can and can’t fit. We might get 19 panels on in total, but I’m not confident we would. They told us the installers would basically figure that out when they’re here and if there is space for more then they’ll add more.

I am waiting on 1 more quote, but the company involved want to do an in person survey first for some reason. Not sure why. And we have a positive Covid case in the house so not sure when we’ll realistically be able to manage an in-person survey given how C19 can travel about the house.

Tempted to just pull the trigger on the above given the companies rep here tbh. Nothing beats positive word of mouth really.

Advice is fill the roof on install day :) Cheapest you'll ever get it. With FIT paying a decent amount now, why not get the free juice. You're paid for it if don't use it