Domestic Solar PV Quotes 2020

Would you not tell him and be a good neighbour.

Ok if thats the after grant price then, the inverter is too small and its over priced by 3 to 4k.

I told him he's being absolutely robbed gave him the details of what he should be paying and the numbers for our friends in Enniskillen. Hopefully he's not committed to the other shower.....

Great thread and cheers to the regular contributors. I’m about half way through reading it, learning so much.

I got two similar quotes recently - looking to oversize my system and put in 6Kw system, might introduce heat pump and EV car in the future so planning ahead.

The quotes both came in about 10,500 after grant for 6.2kw (ish) without battery but with huawei hybrid inverter. From reading the thread these quotes look way over priced (my eyes Glazed over when I saw quote, and I Swiftly thought about looking elsewhere)

Im reaching out to the team in Enniskillen which came recommended- would be great to get any other leads to check quotes

Cheers

It's really not about looking for anything in return and I'm sure DrPhilG would feel the same, but when you see some of the absolute tossers who are robbing people blind you just have to try and show that it's not all about the cowboys.

I needed a sparks a few weeks ago to swap out a trip switch and knew I could call someone I could trust to not try to rip me off and also to turn up when he said he would. It's really all about your reputation nowadays, but unfortunately some operators have no shame.

I see very little here about people's consumption prior to install. I use nearly 11,000 kW during the year with summer peaks as we have 3 guest rooms.

One recent supplier gave me verbal quote for 8/10 panels. I wanted to max out at 20 panels but he said he would not quote for 20. The maths offered a 50% saving for the extra 10 panels but he would not quote for them.

I also queried the use for a battery. I thought it I was only generating 4kW per day, that there was enough background usage rather than divert it to the battery.

I am new to this technology so I am sure there are many holes in my reasoning.

Is it a B&B you have?

Other peoples consumption figures wont matter much to you. You really need to understand where your own consumption is (hot water, electric showers, electric car, heating etc) and then figure out how you can consume as much of what you generate as you can.

For example, if it is a B&B you have then you cant tell the guests to hold off on their shower while you are waiting for the Solar panels to heat your water. If its electric showers you have then they will consume alot more than your panels will generate so your panels might be producing 6kW right now and a shower fires up that uses 10kW. The extra 4kW has to come from the grid and then once the shower is off that 6kW is now being "wasted".

Self-consumption is the key element of Solar PV install. The battery helps you self-consume for later use but the batteries have a cost so not always worth it.

Bottomline, you need a full understanding of your consumption(devices and time of use) and then decide the best way forward. Other people's consumption figures wont help you.

Thank you for the detailed response.

We have a three bedroomed B&B.

Guests seem to take dramatically long showers.

Two off the tank and one off the mains.

Screenshot shows my maximum usage was 41 units and lowest 21. The average is 30 units over the entire year.

We are closed for a week so I will try and calculate our background usage. Fridges, TV’s, routers, mesh system and loads of network stuff on standby.

Reckon that I would use up anything that I would produce ?

A good sized Solar system will help you out, is the place single phase or 3 phase?

Yes but others are available

You can also use optimisers to handle two orientations but at 50 euro a panel it starts to add up.

No way is all that €1500 down to the panels unless he has a massive array. What size is his system? He'd need to be generating 10MWh per year and using ALL of it to save €1500 so there is some creative accounting in his figures.

I bet a decent chunk of his savings is a change of behavior and a change of provider.

Comparing bills is also a bad comparison. Ultimately he should look at the figures his inverter is giving him.... what did they produce and how much of that did he export for free. Then he can calculate what it actually saved him and the excess going to the EV is saving him 6c/kWh, not the day rate.