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

With usage like that averaging 40kwh per day. Which I would have to assume is heavily weighted towards winter; might be more like 50-60 kWh in winter and 20-30 kWh per day in summer; mainly due to the heat pump.

You can never have enough panels with a demand like that; I’d strongly advise fleshing out if you can get any panels at all onto that. Maybe you can post some details and we can advise.

Any excess you will be paid for; so don’t worry about that. You will get paid .21 cent per kWh exported.

a.) It’s not a bad price and it’s not a good price. You can prob do better if you keep shopping.

b.) battery will push up the price significantly; it will allow you to charge at the night rate; and then use that power during the day in winter; Also it will allow you to to charge from solar and use that at night.

c.) you could get a whopper battery and charge it from the grid at night rate to offset the demand of your heatpump during the day in winter.

yes, the car has an 86KWH battery so that remains constant, probably taking one full fill a week on average but the heat pump usage very heavily weighted to winter.

are you saying see if i can get more panels? what info would help in that regard?

would be good to get a smart meter that will allow d/n tariff. Does that mean your export is then actual rather than deemed? still at 21c? or that changes too?

No V2H, would be a very nice option even just for the occasion power cut. sometime hopefully.

Can you get more panels anywhere else like a flat roof or a large shed roof? As others have said here the more you have, the better. I've had winter days as low as 1kWh for the whole day - you'll likely need 50kWh a day on the coldest days in a pure electric house (pure guess).

You can oversize the panels to the inverter. On E/W you'll never get 100% of the output from the panels at the same time due to the sun angle. I've an E/W split. So a 5.5kW inverter can take somewhere close to 8kW. But...ask your installer to check the max it can take - they can see that in the inverter specs based on the panel output. Having say 8kW of panels means you'll be closer to generating the max of 5.5kW the inverter can take. It's a bit like a bigger engine in a car. It can accelerate much quickly (size of panels) to the speed limit (inverter limit).

Cheap night rate (instead of a batttery):

When you say you only charge the car once a week, is that a choice? Or is it in the driveway during the day (when sun is shining) and you could charge but don't? If you've a Zappi already it can take solar excess. If you don't have a Zappi, don't bother as it's ~€1500 supply and install and you won't get the €600 grant as you've a charger already I assume. Instead charge it each night when you get a cheap night rate. Don't leave it to charge only once a week or it will be charging outside the cheap rate (as will need longer to run).

There's a separate thread here on heat pumps and people have successfully used cheap night rate to start to heat the house and water. Helps if you've UFH and a well insulated hot water tank (to hold the heat).

Then you load up all else you can run at night on that cheap rate. Dishwasher, washing machine.... Once that's lower than the 21c FIT, using it at night makes more sense.

Hi All, what do ye make of this quote?

12 x 410w panels      

5KW standard inverter and all fittings

No battery and no hot water diverter.

€4850 after grant

As far as I know these are the FIT rates but some might have changed.

SSE Airtricity 24 cents/kWh Pinergy 21 cents/kWh Energia 18 cents/kWh Electric Ireland 21 cent/kWh Bord Gais 18.5 cent/kWh Flogas 24 cents/kWh.

Once you activate a smart meter you are stuck on smart plans forever or even access the the data on some suppliers portals you can unknowingly activate it. Enter any panel amount in here to see how much they should generate https://re.jrc.ec.europa.eu/pvg_tools/en/tools.html you need to enter each orientation individually and then add them together. See if this plan could help https://www.flogas.ie/flogas-community-plan-electricity-fixed-1-yr.html Only sign up online if you are interested, don't ring or they will say you can't get it. Thread here https://www.boards.ie/discussion/2058235650/switching-electric-gas-providers#latest

This seems a good quote? Would appreciate Views of others

Ginglong Solis Inverter 4.3 Kwp E7,375 or 5 Kwp E7,675

5 Jin Ko Panels on SE and 5 also on SW

430 Watt 1134x1762

BER included in price

No Battery; Diverter; or anything else

Quote excludes SEAI Grant

Would be grateful for opinions on the following quote and also whether the number of panels is sufficient and if anything else would be worth getting that has been excluded - for parents living in a 5-bed semi-d. Strikes me as expensive compared to what others are getting for similar money.

6 panel system (2.43kwp) which would roughly produce 2400kwp per year

Sunpower 405Watt World leading Solar Panel, with 25 year performance warranty. Shingled panel 

Van Der Valk fixings

Huawei 5kw Hybrid inverter with a 10 year warranty

1 extra shunt, two location installation; 1 x slate roof install

Huawei Solar App

Smart PV Optimisers

Includes BER

Cost 7795

Grant 1920

Cost after grant 5875

Thanks in advance

Basically, the hardware and fixings make up 25% of the quote, and the other 75% is labour and profit margin. If you treble the number of panels, your overall costs will only increase marginally. Cost of 2 men on the roof and sparks to connect up system is same for 6 or 18, so economies of scale come into play. Max out the hardware and bargain out the rest. Can do better, elsewhere.

To me, that's a good quote. Can you let us know who that was with.

What Panels and what Inverter are they proposing to use?

Same installer, can't fault them. Best of luck with it.

Yep, that's them.

Great to hear, if you don't mind me asking, how long was wait for install?