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

MuddyDog

Got a quote a few days ago of:

16 435W Jinko Panels

5kW Solis Hybrid Inverter.

5kWh Weco Battery

No BER

 Before Grant Cost of 10,400. After grant cost of 8,300. Says it'll produce about 6,000 units of electricity in that system (7kwh system) per year. Based in Wexford.

MuddyDog

I also have a friend who got a similar quote to me except he is going with a 15kWh battery.

He is going to be getting a night rate of around 5 cent per unit which obv is super cheap and plans to charge the battery during these times and then use the battery entirely during the day and he'll never need to use from the grid outside of the night rate times. He then thinks he can just sell all the solar he produces back to the ESB. On the face of it, sounds like a good plan but is there something not being considered in all of that?

bullit_dodger

https://www.boards.ie/discussion/comment/121840616#Comment_121840616

If you do that, unless your constricted (space wise) go for more than 10 panels. ~4Kwp isn't lot these days especially with the general migration to a more electrified life (heat pumps, EV's, induction hobs). 6-7Kwp would help your payback time too. It'll be the same inverter with 14 panels where you oversized the array as it is with 10 panels, so you'll be utilizing the inverter better.

graememk

https://www.boards.ie/discussion/comment/121918826#Comment_121918826

Load shifting is the main way that a battery saves you money now.

Can be done relatively cheaply now too.

deezell

https://www.boards.ie/discussion/comment/121918826#Comment_121918826

Who's doing night rate for 5c, how many hours at this rate and what are the corresponding day and Peak rates.

paruss100

Just got a quote from a company who generally have been the best value with quotes

6.960 kW Total Solar Power

16 x 435 Watt Panels (Jinko)

Dyness 5.12 kWh Total Battery Storage

Solis 5kw inverter

BER

€9163 after grant

And the same without battery (but a slightly different inverter) no hot water diverter too by the looks of it

€7666

Was leaning towards the non battery option but looking at the difference in price it doesn't seem like too much more.

con747

https://www.boards.ie/discussion/comment/121919081#Comment_121919081

Pinergy. https://pinergy.ie/terms-conditions/tariffs/ Only of use if you have a large battery really and can avoid day rates.

ZMOONY

https://www.boards.ie/discussion/comment/121919103#Comment_121919103

dyness not a great battery, only 3.6 ish or something of that 5.1 is usable. Get the Weco instead. 2000 more usage cycles aswell. Good price looks like though.

MuddyDog

https://www.boards.ie/discussion/comment/121919081#Comment_121919081

Pinergy. I think it's 2am-5am for 5c per unit. 41 cent all other times.

MuddyDog

https://www.boards.ie/discussion/comment/121919105#Comment_121919105

You are guaranteed to avoid day rates though if you have a 15kwh battery and charge it between 2am and 5am for 5 cent and then let it discharge during the day. Might even get 2 days out of a fully charged 15kWh battery if frugal. So that'd mean 95% of the time or more you'd literally be pumping back all your solar to the ESB. So on my friends system that would be on average 5,500 units per year. Say he sells back 5,000 of those units at 20 cent, that's 1,000 euro. Am I right in saying that if were to charge the 15kwh battery each night at 5c per kwh then that's 75cent electricity. That's say 275 euro a year for that. So they'd be getting paid around 700 euro each year and have no electricity bills?

deezell

https://www.boards.ie/discussion/comment/121919105#Comment_121919105

5c rate is the EV charging 3 hour window. 15kwh of battery will require about 5kwh charge rate to fill it roughly by 12kwh because of losses, and headroom. If these are connected directly to a 5kw hybrid inverter which supplies the charge current, you'll need to check its delivery rate to the batteries. It may not be able to deliver a full charge to 15kwh of battery in three hours.

con747

https://www.boards.ie/discussion/comment/121919596#Comment_121919596

https://www.boards.ie/discussion/comment/121919598#Comment_121919598

@unkel would be the man to ask those questions, he has utilised the 5c rate to the best that I know of.

deezell

Its not like filling and emptying a fuel can. There are significant losses on charge and discharge. If you operate the battery to its absolute max, the last kwh can take 1.5kwh to push in, it depends on the overhead built into the battery, i.e, is it a 6kw battery in reality, or a 5kwh which is specified to operate between a minimum discharge floor and a maximum charge ceiling. This can limit a 5kwh battery to a useful rangr of 3.6kwh, and you will buy perhaps 10 to 15% more than this to charge it, and will lose a certain % of this 3.6kw when using it during the day. It affects the sums significantly, and the projected savings, based as they are on a high daytime rate. You can get flat rate from BGE for 28c at the moment. You must also divide the battery cost by its lifetime kwh shifting capacity, to calculate the true cost of timeshifting a kwh.

con747

https://www.boards.ie/discussion/comment/121919675#Comment_121919675

The people utilising that rate that I know of on here have massive batteries so losses don't really come into it when you have a 30-40+ kwh battery most of which were diy batteries which cost a fraction of branded ones. They also get well rewarded by Pinergy (25c) I think but not 100% on that with the FIT rate offered for surplus they send back. I don't want to derail this thread anymore though with non quote posts.

graememk

https://www.boards.ie/discussion/comment/121919675#Comment_121919675

Round trip losses are about 20%, about 10% each time it's changed. The loss is linear, so for every 1kWh of ac you put in, only 900Wh goes to the battery.

But what can happen is the last few % (literally 98/99%) is when it gets to its charge voltage limit and the current does reduce.

Most batteries are also cycled to 15-20%.

A 15kWh battery (300ah) should be able to handle 200 amps easily. More or less comes out in the wash for 5kW inverter, 15kwh battery,

Derailing the quotes thread a bit, if more discussion is wanted I'll spin it out into a new thread

MuddyDog

Thanks.

Is my original post about my own quote decent now we are finished chatting about my friend and his big battery 😆

graememk

https://www.boards.ie/discussion/comment/121918578#Comment_121918578

https://www.boards.ie/discussion/comment/121920048#Comment_121920048

Haha, yes. Back on track.

6000kWh a year is probably correct, you can double check it here (it's pretty accurate, some months you beat it, some months you don't, that's weather for you!)

https://re.jrc.ec.europa.eu/pvg_tools/en/#PVP

As for price, yeah it's good, if counting 7kWp your hitting the €1000/kwp with 1300 for the battery.

deezell

https://www.boards.ie/discussion/comment/121920048#Comment_121920048

Do I detect Battery envy? Don't worry, guys with smaller batteries are happy people 😉.

sozbox

Got another quote today.

11 No. 435W Jinko Solar Panels (System Value: 4.785 kWp)

Huawei Sun 2000 5KLT inverter

BER

€6600

gym_imposter

Cancelled my purchase from that major player in the sector, phoned up to check my registered cancellation letter arrived, let's just say they don't exactly sound pleased when you cancel, no dice when I requested email confirmation

" The refund process is through the rep"

On a different note, can someone please put up that link with the details of the person who purchased all of the equipment for under 5k , I'm nearly certain I will buy the equipment, pay a roofer and electrician and not bother with grant

deezell

https://www.boards.ie/discussion/comment/121921459#Comment_121921459

This is one quote, just over 5K, with the chosen panels, some are ~ €10 cheaper. Once you do up a quote, you could ring them, look for a discount fir upfront payment, or perhaps they have other clearance panels etc.

https://acrobat.adobe.com/id/urn:aaid:sc:EU:e3557948-86db-464f-b3c4-53ce7dc9fd36

gym_imposter

https://www.boards.ie/discussion/comment/121921943#Comment_121921943

That's the one , much appreciated

Ms bean counter

Hi there, we just got a quote for €12,209 for 20 panels and EV charger for a bungalow in Meath. This is before any grants.

Solar Panels

Trina Solar Co., Ltd.

8.600 kW Total Solar Power

20 x 430 Watt Panels (TSM-430DE09R.B5)

7,019 kWh per year

Inverter

Huawei Technologies Co., Ltd.

5.000 kW Total Inverter Rating

1 x SUN2000-5KTL-L1

Smart Power Sensor

Smart Power Sensor

1 x Huawei Power Meter

Tigo Optimizer

Tigo Optimizer

4 x Tigo Optimizer

Shunt (Fireman Safety Switch)

Fireman Safety Switch

2 x Shunt

S-flex Tile Mounting

Tile Mounting

1 x Sflex Tile mounting

Eco-Smart Energy Diverter

Hot Water Diverter

1 x MyEnergi Eddi

Electrical Cabling and Components

Electrical Cabling and Components

1 x Electrical Cabling and Components

BER

Post Install BER

1 x BER

tonysopprano

https://www.boards.ie/discussion/comment/121922679#Comment_121922679

Using DavidHunt.ie/solar/ gives

Even using Huawei Inverter (more expensive than most others) BUT you are limited to using Huawei/Luna batteries which again are more expensive.

con747

https://www.boards.ie/discussion/comment/121921459#Comment_121921459

They are quick to take the money but very reluctant to give it back as my neighbour found out after weeks chasing them for it.

sozbox

whats a decent going rate for additional panels, im seeing quotes from 300-450

Ms bean counter

Hi, great thanks. There's no Eddy included as we only have any electric shower and done use much hot water. There is a Zappy/EV charger included though.

gym_imposter

https://www.boards.ie/discussion/comment/121922948#Comment_121922948

Did he get it back?

con747

https://www.boards.ie/discussion/comment/121923150#Comment_121923150

Eventually, but they don't like you cancelling and make it very difficult to get a refund.

gym_imposter

https://www.boards.ie/discussion/comment/121923451#Comment_121923451

I'll give it the two weeks and then have my solicitor fire over a letter, I'm not going chasing, won't give them the satisfaction