Domestic solar PV quotes 2018

uck51js9zml2yt · 16-01-2019 07:25PM

wexfordman2 wrote: »

Yep,

Mine is with battery (6kwh) plus eddi. The eddi isn't installed yet , but today's generation was 12kwh, the battery was charged last night at night rate and then kept topped up during the day as excess pv power was generated.

With 6kwh battery, it only.dischsrges to 10%, so a available.battery power is 5.4Kwh.

With that 5.4kwh, I generally find it depleted by about 8pm so far, mainly.due to early sunset times, and electric cooker comming on for supper which is high load.

All you need to do is turn off the lights after dinner and you're virtually self sustaining:)

Why isn't your Eddi installed?

wexfordman2 · 16-01-2019 07:34PM

Brecken Tart Newscast wrote: »

All you need to do is turn off the lights after dinner and you're virtually self sustaining:)

Why isn't your Eddi installed?

The inverter they installed was a 3.6kw one as a temp measure until the required 6kw one came in, so they plan to finish all in one go.

They knew they were messing me about a bit with delayed install (not entirely their fault, seai had delayed some bit I believe from paperwork and sign off list etc, and they were awaiting a firmware.uograde.on prime hybrid interver which had a bug that was affecting battery system), but def they we're over stretched a bit as well. Had the owner call round to me to apologise (not a short trip for him,.so genuine enough).

He offered me as a way of apology an option of.going for a Soltaro system which had a bigger battery system, but they would install the smaller inverter short term).

niallers1 · 18-01-2019 12:11PM

wexfordman2 wrote: »

They knew they were messing me about a bit with delayed install (not entirely their fault, seai had delayed some bit I believe from paperwork and sign off list etc,).

Paperwork sign off i.e. crossing t's and dotting i's was the longest most painful part of the process for me.

E.g. Your MPRN will have one address and your Eircode might be slightly different. Electrician might use Eircode address, The application will be in under your MPRN number.

If everything doesn't match your mprn number exactly then it will delay your application. SEAI will not be proactive and tell you this . They wait for you to cop on there is an issue and for you to contact them. Then due to GDPR they won't tell you because the contractor filled out the application and not you.

I put it down to SEAI teething issues but it was very painful and delayed payment.

randombar · 19-01-2019 10:05AM

Tio Eddi or not to Eddi?

So I've just ordered the Zappi and Harvi.

I'm wondering for 400 or so should I go ahead and order the Eddi?

I'm guessing my return on that is LOOOONNNNGGGGG but it would mean an extra source of hot water without thinking about it. i.e. I have hot water scheduled to come on for an hour, but if during the day there are people at home (using ridiculous amounts of hot water) then by the time the kids have the baths and herself has a shower that night it's starting to get a bit chilly.

wexfordman2 · 19-01-2019 10:47AM

GaryCocs wrote: »

Tio Eddi or not to Eddi?

So I've just ordered the Zappi and Harvi.

I'm wondering for 400 or so should I go ahead and order the Eddi?

I'm guessing my return on that is LOOOONNNNGGGGG but it would mean an extra source of hot water without thinking about it. i.e. I have hot water scheduled to come on for an hour, but if during the day there are people at home (using ridiculous amounts of hot water) then by the time the kids have the baths and herself has a shower that night it's starting to get a bit chilly.

Yesterday, my system generated 12kwh and sent 7kwh of it back to the grid. It.never generated at any one time anything above 4kw, so fir a 4kw system, I lost 7kwh to the grid (my.eddi isn't installed yet).

So that's a figure for early january, I am optimistic that I will get decent levels of hot water in the summer to negate the need for using the oil.

Having a zappi changes things for you though, assuming your car will be olugged in during the day.

randombar · 19-01-2019 11:28AM

wexfordman2 wrote: »

Yesterday, my system generated 12kwh and sent 7kwh of it back to the grid. It.never generated at any one time anything above 4kw, so fir a 4kw system, I lost 7kwh to the grid (my.eddi isn't installed yet).

So that's a figure for early january, I am optimistic that I will get decent levels of hot water in the summer to negate the need for using the oil.

Having a zappi changes things for you though, assuming your car will be olugged in during the day.

Only plugged in at weekends so ideally would take excess then (not sure how much if we're home I guess?).

During the week, no one is home, resting power is 300w, I have a good chunk of excess too out of the 4kw generated yesterday maybe 2kw dumped, 0.25 litres of oil, 20 cent basically.

Alternatively I could look at it:

=> €400 (cost of eddi) = 500 litres of oil = 4000kwh

unkel · 19-01-2019 11:32AM

You know I have argued against an immersion diverter in the past, GaryCocs. But if you have a large (>=4kwp) PV system (and no EV plugged in during the day much and none or a very small battery), they start to make sense.

randombar · 19-01-2019 11:35AM

unkel wrote: »

You know I have argued against an immersion diverter in the past, GaryCocs. But if you have a large (>=4kwp) PV system (and no EV plugged in during the day much and none or a very small battery), they start to make sense.

Yup. I remember you saying it and 4000kwh is a lot to make up all right. Especially if I have solar thermal (a right dose) already.

I think it's the combination of a cold shower and excess yesterday

ted1 · 19-01-2019 12:01PM

GaryCocs wrote: »

Tio Eddi or not to Eddi?

So I've just ordered the Zappi and Harvi.

I'm wondering for 400 or so should I go ahead and order the Eddi?

I'm guessing my return on that is LOOOONNNNGGGGG but it would mean an extra source of hot water without thinking about it. i.e. I have hot water scheduled to come on for an hour, but if during the day there are people at home (using ridiculous amounts of hot water) then by the time the kids have the baths and herself has a shower that night it's starting to get a bit chilly.

I believe the life time if the Eddi is shorter than the pay back

ted1 · 19-01-2019 12:04PM

lucast2007us wrote: »

Anyone watch that programme tonight on rte about the deep retrofit grant?

Would it really take about 30,000 euro (30,000 euro from home owner and a 30,000 grant) to go from a E rating to A rating?

Ours is rated at D1 so would probably be in that price range!

They said the average heating bill is 2,500!!!! Our standard 3 bed semi built in 83 is 600 a year with gas!!

That’s 100 years payback !!

Gumbo · 19-01-2019 02:48PM

wexfordman2 wrote: »

Yesterday, my system generated 12kwh and sent 7kwh of it back to the grid. It.never generated at any one time anything above 4kw, so fir a 4kw system, I lost 7kwh to the grid (my.eddi isn't installed yet).

So that's a figure for early january, I am optimistic that I will get decent levels of hot water in the summer to negate the need for using the oil.

Having a zappi changes things for you though, assuming your car will be olugged in during the day.

You will I went from April to October in 2018 without turning my gas boiler on at all. I generated all the hot water needs from the panels. I posted about it in real time on these forums too.

unkel · 19-01-2019 07:23PM

ted1 wrote: »

I believe the life time if the Eddi is shorter than the pay back

That of course depends on how many units the Eddi sends to the immersion in its life.

With a small system, like 2kwp, your point is probably true. With a large system (like >=4kwp), it will more than likely pay for itself well before it is dead

ted1 · 19-01-2019 08:24PM

unkel wrote: »

That of course depends on how many units the Eddi sends to the immersion in its life.

With a small system, like 2kwp, your point is probably true. With a large system (like >=4kwp), it will more than likely pay for itself well before it is dead

Are you allowing for hot water that will go to waste as it’s not needed. AFASIK most people forget that they won’t need half the hot water !!

wexfordman2 · 19-01-2019 08:29PM

ted1 wrote: »

Are you allowing for hot water that will go to waste as it’s not needed. AFASIK most people forget that they won’t need half the hot water !!

But does the same not apply to heating water by other means ?

unkel · 19-01-2019 08:34PM

ted1 wrote: »

Are you allowing for hot water that will go to waste as it’s not needed. AFASIK most people forget that they won’t need half the hot water !!

You wouldn't install a hot water diverter if you use very little hot water. Also with modern cylinders the heat loss is minimal. My 360l cylinder loses just 1 degree C per 24h

lucast2007us · 19-01-2019 09:42PM

I would like my solar panels ( not installed yet) to heat the water and the radiators and also have backup electricity stored.

Is this setup even possible?

ted1 · 19-01-2019 10:42PM

wexfordman2 wrote: »

But does the same not apply to heating water by other means ?

No. It doesn’t. Because ither firms would be classed as dispatchable. In July if I don’t need hot water I won’t heat it with gas or mains elec with a divertir it’ll heat the eater even if you are away for two weeks

wexfordman2 · 20-01-2019 01:58AM

ted1 wrote: »

No. It doesn’t. Because ither firms would be classed as dispatchable. In July if I don’t need hot water I won’t heat it with gas or mains elec with a divertir it’ll heat the eater even if you are away for two weeks

Fair point

Shefwedfan · 20-01-2019 09:00AM

lucast2007us wrote: »

I would like my solar panels ( not installed yet) to heat the water and the radiators and also have backup electricity stored.

Is this setup even possible?

I talked to company and they mentioned infrared heater, they can be disguised in the house as picture, excess electricity is used by the heaters....in that case it wouldn’t heat the water

Trying to use excess electricity to heat water for heating would have a similar affect as peeing into a lake to try and warm it up :-)

Better off looking at infrared or heat pump

Ballylad · 20-01-2019 09:46AM

wexfordman2 wrote: »

The inverter is smaller as well, mine is/will be a 5kw inverter. Double check it is the right size , itcould be a typing error.

Hi, can you PM me company you used, thinking of adding battery to my 5kw panels, thnks

unkel · 20-01-2019 11:43AM

Shefwedfan wrote: »

I talked to company and they mentioned infrared heater, they can be disguised in the house as picture, excess electricity is used by the heaters....in that case it wouldn’t heat the water

Trying to use excess electricity to heat water for heating would have a similar affect as peeing into a lake to try and warm it up :-)

Better off looking at infrared or heat pump

It's the same kWh, if you use it to heat water or air doesn't make any difference

wexfordman2 · 20-01-2019 12:10PM

lucast2007us wrote: »

I would like my solar panels ( not installed yet) to heat the water and the radiators and also have backup electricity stored.

Is this setup even possible?

You are looking for a system to heat your house during times when the max heat requirement (winter and night time) conincide with the lowest possible availability of your power source.

Shefwedfan · 20-01-2019 12:27PM

unkel wrote: »

It's the same kWh, if you use it to heat water or air doesn't make any difference

The infrared heater works better, according to this company, it doesn't heat the air, it heats object....something like that

The amount of water in my heating system it would take a huge amount of electricity to heat it to any level to heat the house

Shefwedfan · 20-01-2019 12:36PM

My latest pricing

10 Panels (3.25kw) of PV and 5.6kwh of Prime Hybrid Battery Storage = €9,500 + VAT (13.5%) = €10,783
This would allow you to reclaim €3,240 from SEAI for the install = €7,543

13 Panels (4.25kw) of PV and 5.6kwh of Prime Hybrid Battery Storage = €10,250 + VAT = €11,634
Reclaim €3,800 from SEAI = €7,834

18 panels (5.85kw) of PV and 5.6kwh of Prime Hybrid Battery Storage = €11,500 + VAT = €13,053
Reclaim €3,800 from SEAI = €9,253

unkel · 20-01-2019 12:53PM

Shefwedfan wrote: »

The infrared heater works better, according to this company, it doesn't heat the air, it heats object....something like that

The amount of water in my heating system it would take a huge amount of electricity to heat it to any level to heat the house

You didn't get my point then. And you'd rather believe a company trying to sell you something

Shefwedfan · 20-01-2019 01:17PM

unkel wrote: »

You didn't get my point then. And you'd rather believe a company trying to sell you something

No I wouldn't. that's why I mentioned "according to the company"

A2W would be a lot better option for heating the house.

conor_mc · 20-01-2019 01:56PM

Shefwedfan wrote: »

The infrared heater works better, according to this company, it doesn't heat the air, it heats object....something like that

The amount of water in my heating system it would take a huge amount of electricity to heat it to any level to heat the house

IR heats you, as an object. It’s not any more or less effective at heating than rads, it’s just that you can walk into a cold room, switch it on and feel the heat yourself. Switch it off and the room is still cold. Any “savings” in efficiency really only come from using it more directly and thus running it for less time.

In solar terms, IR can heat other objects with thermal mass (e.g. a granite worktop) which will indirectly release the heat into the space in due course, but that’s no better than having a rad doing the same. It’s a poor match for solar PV really, from what I can tell, unless coupled with a battery.

wexfordman2 · 20-01-2019 04:13PM

Shefwedfan wrote: »

My latest pricing

10 Panels (3.25kw) of PV and 5.6kwh of Prime Hybrid Battery Storage = €9,500 + VAT (13.5%) = €10,783
This would allow you to reclaim €3,240 from SEAI for the install = €7,543

13 Panels (4.25kw) of PV and 5.6kwh of Prime Hybrid Battery Storage = €10,250 + VAT = €11,634
Reclaim €3,800 from SEAI = €7,834

18 panels (5.85kw) of PV and 5.6kwh of Prime Hybrid Battery Storage = €11,500 + VAT = €13,053
Reclaim €3,800 from SEAI = €9,253

Your 18 panels system, does it come with an eddi ?

_dof_ · 20-01-2019 04:18PM

IMO, using the excess to heat water is a better choice, since it will be used year round. Any IR heating of the living space won't be needed in the summer, so all the excess would be sent to the grid in that case.

lovehathi · 21-01-2019 11:02AM

Hi every one

So if someone goes diy route including getting separate electrician to hook the system to board . What is the cost difference or saving compared to the professional installer with grant.

Domestic solar PV quotes 2018

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