Domestic Solar PV Quotes 2020

Hi,

right size inverter question:

if I understand it correctly,

the power rates of the panels are DC rates (peak rates actually), the inverter rates are for output AC (or are they?).

What size of the inverter should be installed for 4kW solar array ?

Should "Recommended max. PV power" exceed theoretical 4kW of solar ?

I understand here in Ireland we don't get the full sun, but when we do (once in decade) would it not be dangerous to have undersized inverter ?

ps: i am maxing out the roof space (S-SE), so there will be no extra panel added in the future.

All very new to me so forgive the stupid questions. Everyday is a school day!

Been waiting since Mid-May for SaaS to install. First said Mid July, then early August, then they would give a date next week, which turned out to be instead of a date, "in the next couple of weeks". Got fed up and started shopping around and looking for a bigger system.

This was the quote I have gone for now (from an outfit in Enniskillen with a persons name in the company title) and it will be installed in 2-3 weeks, not 3-4 months.

14 JA 345w panels and 4 optimizers - 4.8KW

Solis 5KW Hybrid invertor with wifi

5KW Battery

Eddi water diverter

No BER.

€6,870 Net after grant.

That's a good price, since it includes 2 batteries. You won't be disappointed. Ken and the lads are a genuine bunch of guys and you won't regret going with them.

Looks like a pretty decent price. Also ask how much you will get off with only one battery instead of two - assuming these are pylontechs.

They are quoting Pure Drive 5kw batteries, also got quoted from them with that battery.

Nobody here bothered with planning.

Technically planning permission is required for an installation over 12m2 or 50% but after than court case I doubt any council would bring a case forward unless you are being egregiously in your face or live in a listed building. The installers ignore these guidelines but generally don't ignore the SEAI grant requirements of distance of panels from the edges.

.

IF I have it right, the existing regulation S.I. No. 83/2007 - Planning and Development Regulations 2007.

CLASS 2 (c) The installation or erection of a solar panel on, or within the curtilage of a house, or any buildings within the curtilage of a house.

1. The total aperture area of any such panel, taken together with any other such panel previously placed on or within the said curtilage, shall not exceed 12 square metres or 50% of the total roof area, whichever is the lesser.

2. The distance between the plane of the wall or a pitched roof and the panel shall not exceed 15 centimetres.

3. The distance between the plane of a flat roof and the panel shall not exceed 50 centimetres.

4. The solar panel shall be a minimum of 50cm from any edge of the wall or roof on which it is mounted.

5. The height of a free-standing solar array shall not exceed 2 metres, at its highest point, above ground level.

6. A free-standing solar array shall not be placed on or forward of the front wall of a house.

7. The erection of any free standing solar array shall not reduce the area of private open space, reserved exclusively for the use of the occupants of the house, to the rear or to the side of the house to less than 25 square metres.

There is a bill going through the Oireachtas at the moment "Planning and Development (Solar Panels for Public Buildings, Schools, Homes and Other Premises) (Amendment) Bill 2021" which states:

Amendment of Part 1 of Schedule 2

2. Part 1 of Schedule 2 of the Regulations is amended—

(a) by the deletion of Class 2 (c) 1, and

(b) by the substitution of “4 metres” for “2 metres” in Class 2 (c) 5.

If passed, this will remove the "12 sq metres or 50%" rule and increases the size of free standing panels.

Well I'm on 20 panels on a 3 bed bungalow so far not a word. Still room for 6 more, soon I hope.

Yep

can i get a recommendation for solar as a service provider.

Quote received;

...and seems quite high compared to what others are seeing..... might give the guys in Enniskillen a call..

8x 400w panels (awaiting specs) to give a ~3.2kW system

3kW Solis hybrid inverter

2.4kWh battery

hot water diverter

€10,000 (€7,300 after grant)

Yeah, I just rang the crowd in Enniskillen and went through it over the phone...

He offered 12 panels/4kW system (roof has 3 sides that can take the panels, so previous guy who was here said I'd easily fit 12 panels)

5kW Solis hybrid inverter

5kW battery

eddi water heater

€10k (€7 after grants)

the guy that was here offered the above 4kW system and 5kW battery for €13k (€10k after grant)

Its Better than what they quoted me

4KW 340 WATT 12 PANELS JA SOLAR  25 YEARS GUARANTEE.

4KW BATTERY 

3.6 HYBRID SOLIS INVERTER.

EDDI WATER DIVERTER.

WI FI DONGLE.

PRICE 10500 EUROS INC.VAT