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Domestic solar PV quotes 2018

wexfordman2

Hi,

Thinking this might be a worthwhile information point and reference.

Good to get an idea of prices, and see if the recent grant is causing anomies etc.

If anyone cares to post up quotes they got (but excluding the company/supplier to keep mods happy).

We should show quote if system dimension, something along the lines of

4kw solar with 5kw battery and diverter 9,900 ex vat
5kw solar with 5kw battery and diverter 11,200 ex vat.

Additional info
This was for a "premium" solar panel with 30 year warranty.

Provider is seai registered, so grant is apicable, and he claims HRI/vat refund available also, however I believe thats an error.

Payment terms
20% on order
Additional 50% prior to install
Remaining 30% post commissioning

Quite for market standard panels as follows

4kw with 5kw battery 8750 ex vat
5kw with 5kw batter 9750 ex vat

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unkel

Charging completely from the sun

rolion

Evd-Burner wrote: »

It really isn't worth buying a diverter and a new hot water tank just to divert the hot water. It will take years just to pay off the diverter, nevermind the tank!

johnjacob wrote: »

So what are you doing with the excess?

Be much handier if we could just feed it back into the grid rather than buy batteries

One neighbor has a very old meter and it runs backwards, so they are quids in

Well,this has been discussed here a lot... plus and minus, even friendships have been broken for it...lots of verbal fightings.

After having a system working for the past 2 years, i can say that there are two options:
-buy the PV system without the diverter and all the excess electricity goes to Mr Grid while you enjoy the weather;
-buy at the same time and install it at the same time the PV system with diverter and ... save any excess to your own personal owned in-house hot water cylinder,while enjoy it the weather to your own comfort.

Now,unless you work for one of the big industry companies out there, i guess is easier to see which one has a "personal touch" advantage.

Please note that there will not be a FIT payment system around here for a couple of goooood years...
I mean think about it...i pushed 11Kwh yesterday free in the grid. Multiply that with few more hundreds of PV installs across the country... ask yourself:why in my right mind i will approve FIT when i can get surplus of "negative energy" from the grants' happy owners of the PVs !??

And,don't forget ..think about the environment,change begins from within yourself (while big guys are fcukign up this planet)

unkel

Quick test and my measurements are very flaky as I'm just using an Owl for overall consumption / feed back to grid (can't even really tell which is which from the face of it

)

KCross wrote: »

Does it just have one setting regardless of whether its the granny cable or the 32A EVSE?

There are two settings, but it looks like one setting for DC charging and one for AC charging. So yes, one setting regardless of whether it's the granny cable or the 32A EVSE

And the minimum setting when using the EVSE is still drawing about 4.2kW, so no good to me (a good bit more than my solar PV can provide)

The maximum setting when using the granny cable is a bit over 2kW, so perfect. Were it not for the fact I have to be using the granny cable, which flies in the face of the max convenience setup I have with my EVSE

On the sunny side, the car will be charging up to 100% over the next few hours, purely on PV, so 100% clean and 100% free

unkel

johnjacob wrote: »

So what are you doing with the excess?

At the moment, mostly sending it back to the grid for free. Apart from some cryptomining (which I plan to stop now the weather is getting warmer) and perhaps charging my car on the granny cable on a sunny day (but that's a pain)

Getting an AC attached battery system connected soon. Cost me hundreds, not thousands. More as a hobby than anything else. And like the rest of you, hope for either a half decent feed in tariff or a huge decrease in the cost of lithium batteries or (my favourite) a V2G system provided by the utility company as a pilot / sans the setup costs

rolion

unkel wrote: »

Not quite sure about the Leaf, but in most EVs you can adjust the charging rate / input amperage from within the car too!

im playing from within the charger' mobile application... setting the minimum charging current. Waiting for the LEAF to come home...
Issue is what if i forget to up it back overnight ?

johnjacob

unkel wrote: »

Indeed. But it's more like 10MWh before break even. One kWh used to heat water with gas or oil costs €0.05

A diverter costs about €500 installed

500/0.05 = 10,000kWh

Nice day for the solar anyway. For hours on end I was producing >3kW today. In the next few days I'm coming up to 1MWh produced in my 3.8kwp system that was only installed in February :cool:

So what are you doing with the excess?

Be much handier if we could just feed it back into the grid rather than buy batteries

One neighbor has a very old meter and it runs backwards, so they are quids in

Evd-Burner

BobFedora wrote: »

Glad i read this - long time reader first time poster!

i'm getting quotes in at the moment. my intention is to put in solar pv, divert excess to hot water (which in itself will rtequire a new HW cylinder) and, going forward to charge the electric car that i reckon will be purchased in the next 12 months (waiting for me diesel to die...)

i thought with one of those fancy zappi chargers i'd be good to go with EV charging? the car is left at home twice a week so could daytime charge.

thanks to all have you that have posted useful/interesting information here.

It really isn't worth buying a diverter and a new hot water tank just to divert the hot water. It will take years just to pay off the diverter, nevermind the tank!

KCross

unkel wrote: »

Not quite sure about the Leaf, but in most EVs you can adjust the charging rate / input amperage from within the car too!

Not configurable on the Leaf menus.

KCross

unkel wrote: »

Just plug in as usual with my EVSE. End point of my charging cable is literally centimeters from the charger in my car for maximum convenience. Why would I bother using a granny cable?

Limiting the current from within the car alright. Can't remember what settings I have, but I know the minimum is 6A. Currently the base load of the house is about 1.4kW so that would be ideal if like today I will produce >3kW steadily for hours on end (tiny bit hazy now and then but no clouds), so I should charge 100% from PV and 0% from the grid

The min for the charging standard is 6A but I believe some cars dont accept a rate that low.

I dont know what settings the Ioniq has but it might be better to use the granny charger to get the lowest Amp setting possible..... if you can use your 32A EVSE but limit that to 6A in the cars settings then thats perfect too.... as I said, I dont know what the Ioniq menus allow.

Does it just have one setting regardless of whether its the granny cable or the 32A EVSE?

unkel

rolion wrote: »

Just went in to my mobile app for my charger and found that i can adjust the charging rate / output amperage !

Not quite sure about the Leaf, but in most EVs you can adjust the charging rate / input amperage from within the car too!

BobFedora

rolion wrote: »

You will not be able to fully charge from PV...you lose the money compared with charging at night rate.

Glad i read this - long time reader first time poster!

i'm getting quotes in at the moment. my intention is to put in solar pv, divert excess to hot water (which in itself will rtequire a new HW cylinder) and, going forward to charge the electric car that i reckon will be purchased in the next 12 months (waiting for me diesel to die...)

i thought with one of those fancy zappi chargers i'd be good to go with EV charging? the car is left at home twice a week so could daytime charge.

thanks to all have you that have posted useful/interesting information here.

rolion

unkel wrote: »

Not necessarily. On a cloudless (but slightly hazy) day like yesterday, where my production was a steady >3kW for hours on end without dipping below it, I could have charged my car at 6A or even 10A without ever buying from the grid. No, not from 0-100%, but I think I have only ever charged from 0-100% once in the well over 2 years I have the car...

And even on a mixed cloudy / sunny day if you charge say two thirds of the time on PV and one third of the time you have to buy from the grid at the expensive day rate, it is still cheaper than charging at night rate overall

You know what...i owe you a nice bottle of Maynards's Port !

Just went in to my mobile app for my charger and found that i can adjust the charging rate / output amperage !
So, if i can setup a timer to start charging when car arrives at home and stop charging when i feel the appliances will start the work,i can use the PVs to feed a steady 6Amps / 1kwhish to my battery RATHER than free to mr grid bonuses !!!
Then,readjust it overnight if necesary,back to 16Amps.

That way,the diverter finishes its work and cylinder hot by lunch time so the excess 10KWh afternoon rather than "wasted" in bonuses goes in to MY battery !
Oah,it's amazing if that will work...

unkel

rolion wrote: »

You will not be able to fully charge frpm PV...you lose the money compared with charging at night rate.

Not necessarily. On a cloudless (but slightly hazy) day like yesterday, where my production was a steady >3kW for hours on end without dipping below it, I could have charged my car at 6A or even 10A without ever buying from the grid. No, not from 0-100%, but I think I have only ever charged from 0-100% once in the well over 2 years I have the car...

And even on a mixed cloudy / sunny day if you charge say two thirds of the time on PV and one third of the time you have to buy from the grid at the expensive day rate, it is still cheaper than charging at night rate overall

rolion

You will not be able to fully charge from PV...you lose the money compared with charging at night rate.
The Sun will not stay up there and "wait" for the car to fully charge, it will be covered by clouds and that alone will fluctuate over the couple hours and few minutes. Been there,done it and i say it never do again but .... well,i hate sometime giving the free electricity to mr grid.

@Gally... on this land we will never get the FIT you are talking about.
No offence intended, but plan your system around maximising consumption and in-house efficiency.

unkel

Just plug in as usual with my EVSE. End point of my charging cable is literally centimeters from the charger in my car for maximum convenience. Why would I bother using a granny cable?

Limiting the current from within the car alright. Can't remember what settings I have, but I know the minimum is 6A. Currently the base load of the house is about 1.4kW so that would be ideal if like today I will produce >3kW steadily for hours on end (tiny bit hazy now and then but no clouds), so I should charge 100% from PV and 0% from the grid

KCross

unkel wrote: »

I like your style niallers1. In a similar experiment I'm going to charge my EV from my solar from about 10AM tomorrow and see how that goes

What’s the plan, connect via granny cable?
Can the Ioniq also set the granny cable to the min of 6A?

That combination would be ideal.

gally74

niallers1 wrote: »

Good man, well done.
We're you tempted to go for 3.9kw or 4.2kw to get max grant?

not really, im getting a 5K inverter and will expand when a FIT some in in 2021, i initally was going for a battery but if FIT does come in and i think it will, it will not return the investment,

i also got the solar edge imersion setup etc. We have activity during the day in the house, so consumption should be high enough,

secondly we used oil for heating the hot water during the summer, the burner is located in the garage about 12m away from the house, so quiet inneficiecnt to heat water in the summer,

iits not all about the money here, its the right thing to do,

as the king once said, "The time is always right to do the right thing"

niallers1

gally74 wrote: »

Signed today. 3.6 kw solaredge

Good man, well done.
We're you tempted to go for 3.9kw or 4.2kw to get max grant?

unkel

niallers1 wrote: »

today on the way out to work I put the Immersion on bath and left it on all day (I know, crazy or what) .. didn't use anything from the grid.

I like your style niallers1. In a similar experiment I'm going to charge my EV from my solar from about 10AM tomorrow and see how that goes

gally74

Signed today. 3.6 kw solaredge

niallers1

I don't have a diverter yet but today on the way out to work I put the Immersion on bath and left it on all day (I know, crazy or what) .. didn't use anything from the grid. Came home to full hot tank of water.

Wouldn't do that normally, twas just an experiment like

4.2kw east/west PV with 4.8kwh Pylontech batteries.

AidenL

unkel wrote: »

Decide what you want to do / how much you want to spend. And then just bite the bullet, Aiden. I doubt you'll regret it and you'll be doing the right thing. For yourself and for everybody else.

Yep you are right. So many good reasons to do it.

unkel

Decide what you want to do / how much you want to spend. And then just bite the bullet, Aiden. I doubt you'll regret it and you'll be doing the right thing. For yourself and for everybody else.

AidenL

unkel wrote: »

Indeed. But it's more like 10MWh before break even. One kWh used to heat water with gas or oil costs €0.05

A diverter costs about €500 installed

500/0.05 = 10,000kWh

Nice day for the solar anyway. For hours on end I was producing >3kW today. In the next few days I'm coming up to 1MWh produced in my 3.8kwp system that was only installed in February :cool:

Days like this, it makes me wish I had it on the roof.

NoBread

How does the system cope during a power cut? Had a couple recently and was wondering. I guess in both scenarios, one with a battery system, and the other without. Assume a bright sunny day in both scenarios and mains power gone for 3 hours!
What happens if the draw exceeds supply?

Evd-Burner

The quick maths have failed me today ðŸ˜

unkel

Evd-Burner wrote: »

You mustn't have read any of this thread. Lots of people are doing it, a lot of people are doing both, filling the battery first and then diverting to water. Only thin is that the payback on diverting to water is long as you need to divert 4mwh just to break even on the diverter!

Indeed. But it's more like 10MWh before break even. One kWh used to heat water with gas or oil costs €0.05

A diverter costs about €500 installed

500/0.05 = 10,000kWh

Nice day for the solar anyway. For hours on end I was producing >3kW today. In the next few days I'm coming up to 1MWh produced in my 3.8kwp system that was only installed in February :cool:

Evd-Burner

johnjacob wrote: »

Is anyone diverting to unused solar leccy to heat the hot water say instead of using a battery for the excess?

How would that works vs say solar thermal collectors?

You mustn't have read any of this thread. Lots of people are doing it, a lot of people are doing both, filling the battery first and then diverting to water. Only thin is that the payback on diverting to water is long as you need to divert 4mwh just to break even on the diverter!

johnjacob

Is anyone diverting to unused solar leccy to heat the hot water say instead of using a battery for the excess?

How would that works vs say solar thermal collectors?

Charlie-Bravo

What monitors are good to monitor to put on a system to see the energy usage in the home? One that's WiFi enabled and is decent to view on a home network?