LONGi Solar Hi-MO X6 Explorer 535w Black Frame Solar PV Module - LR5-66HTH-535M - 10 Panels (UK Mainland)

£804.84

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I've been reading for some time that China is dumping a glut of solar panels on the European market...I think they are here!

These panels look to be top spec, Longi is apparently the biggest panel maker in the world now and announced in recent weeks it is cutting its workforce by 30% due to oversupply.

Panel Type - Monocrystalline
Power (WP) - 535
Warranty - 15 Years
Panel Length - 2094 mm
Panel Width - 1134 mm
Panel Depth - 35 mm

5.35kW of "Peak output" would average around 5300kWh per year, at ideal angle in southern England (according to a web tool).

These are larger size than standard rooftop 1.1 by 1.7m panels, which are around 410W and £645 for 10.

They sell different pack sizes at approx £70 per panel, plus £100 delivery.

Obviously you still need a suitably qualified electrician, roofer, scaffolding, fixings, frame, inverter, battery...So the total install will be 5-10 times this price.

If you just want to buy 1 or 2 for your shed, then cityplumbing (collect from store) is the best deal, starting at £70.99 for the top spec 435w smaller panels, or just £60.52 for the 410w. I may start there.

More details at

Edited by a community support team member, 2 days ago

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30th Apr
For a shed how would this work. What other kit do I need
30th Apr
A decent charge controller is a must. Fuses, appropriate gauge wire/cable, master cut off switch. It's not as simple as some would have you believe. (edited)
1st May

This is my solar shed, the roof are the panels (which was an experiment). I’ve used Enphase micro inverters which make it a super simple setup. (edited)
1st May

Also got a ‘diy’ battery setup. (edited)
30th Apr
Never considered this as an option for a supply to a shed. Would be interested to know how you get on if you go that route
30th Apr
It’s pretty straight forwards. Solar panels to cables to bluetti power station. That has mains ac plugs and you just feed whatever you need. I have a larger system but you could power a small shed with just one solar panel and a power station and then expand as you need. As they store power in the battery it also gives you some power overnight too.
1st May
Great to see people interested into it. I went with solar & battery in 2018 and quite great with Feed In Tariff (FIT) from govt. Some of my thoughts who plan to put solar now..
- Some of the installers charge a fortune. So compare multiple and ask them to come and speak and ask a colleague who understands the tech to be with you. Saves a fortune and you will have quality setup. I saw a setup done by Council sponsored installers and was quite poor and charged a fortune.
- Quality batteries last for 10+years easily and some of them upto 20years. Solar is fixed, so always remember if you are planning to move house it may not suite you. I would now recommend an 'offline' battery setup than traditional online mode due to portability factors. (Just my opinion)
- Battery is 'THE' key. Even if you don't have solar, if you setup a good battery system & Inverter to store (eg 10Kwh+) and charge during off-peak hours of Octopus etc, that's 7p forever.
- How many people know UK pays windfarms to stop rotating as many times energy is over-supply. Wished the councils spend money on establishing Battery farms rather than money wasting schemes.

Said that all my eyes are on new Battery racks
- Ecoflow Detla Flow amazon.com/EF-…5BK . Matter of time it will be in the UK. Hopefully price will be halved in a year or two
- I would recommend portable battery setup if you plan to move house in next 5 years as you can take it away with you.
- Will Prowse Channel (Link) ; Quite good to understand batteries and cheaper setup

I would really intersted to do DIY project to 'append' energy from wind during Autumn/winter days into another battery. Any thoughts ideas would be appreciated, so as to feed energy from small 'wind turbine' to an offline battery like Delta Pro and attach to house mains.
(edited)
1st May
30th Apr
Just use this as fence, cheaper than wooden fence
30th Apr
I think that the efficiency is not correct. I have done a quick calc and it looks to be 22.5% not 25%
1st May
The 25% refers to the cells on the panel and not the panel/module itself which is 22.5%
1st May
Thanks for this info. You can install your own panels up to 3.6kwp,inverter etc. I think so two systems here but an electrician is needed to link to the house supply.

Also bifacial panels can produce up to 15% more than non-bifacial. Work better in cloudy conditions like in UK winter too. (edited)
1st May
If you are doing a small system you can always have a separate circuit in the house not tied to the grid, not sure if you are allowed to DIY, at the very least insurance might complain if you burn the house down.

Great prices on these panels, BTW, just goes to show how cheap they really are when brought in by the container load rather than having their prices bumped up by layers of agents and installers. (edited)
30th Apr
Also if you sign up to plumb nation for get another £20 off
1st May
I would spend a bit more on a bifacial with a 25-year product warrant and a 30-year linear power output warranty, like some by Jinko or JA Solar, my pick is the JA Solar 440W N-type Bifacial Double Glass Traceable LB All Black with MC4 for £89 with vat, although volume and asking nice will get you roughly 6% off.
powerland.co.uk/pro…mc4
1st May
Hello. I have 8 panels on front and 8 panels on back of my home. Yesterday it produced 35.5 kWh . I am over the moon with my system and I highly recommend to get solar installed.
10 h, 37 m ago
What was your outlay on that? And how long do you anticipate it will take to recoup the cost? 35 kWh would easily power all my daily needs for all but the coldest months so in theory would be saving me about £150 a month just on bills.
30th Apr
Personally dont want to put any solar panels on the roof.

However i do have a garden wall approx 15m in length bathed in sunlight almost every day (Mar-Nov).

Thinking of doing it as a DIY project, wanting the best, most efficient panels

Is it possible?
30th Apr
I’d rather see panels than tiles but yeah it would work but no sun nov-feb is mad. Cutting 3 months off
30th Apr
Free delivery
1st May
This seems like such a good long term investment

1. because its just better for the environment and doing your bit
2, they will pay themselves off within 5-10 years easy- financially this seems like a good bet
3. An EV makes sense when you have panels because of the great rates availble
4. when the new gov comes in, they will actually start to support the people doing positive things like this- so maybe a few tariffs that support us
1st May
I don't believe in this doing your bit it's misguided and misleading. Realistically everything we do currently as individuals makes no difference. The corporations need to be forced to change and us consuming from them is the real problem.

In terms of EVs batteries make the most sense with the current tariffs. We do need more incentives to use solar/batteries.
1st May
Do not put solar panels on a slate/tile house roof. It will lead to a lot of problems down the line. The money you save on electricity is a fraction of what it will cost to fix the problems caused by solar panels. A lot of house fires are caused by them. The cause cracked tiles and water ingress. Bird build nests under them, the next material can cause water ingress and can go on fire. It makes it difficult to repair your roof. It's not easy to clean them. So many problems associated with solar panels on a slate/tile roof, it shouldn't be allowed.
1st May
This is precisely why you pay a good firm to do it properly. Having panels fitted flush to the roof mitigates many of these problems but requires a lot more work. As for having them cleaned; this is done easily, once a year on a standard two storey house. Just because you have had/seen issues, doesn't mean the technology doesn't work on standard residential installs. You/someone you know was just the victim of a crap install, simple as that.
30th Apr
Not a fridge freezer then
30th Apr
Thinking of getting solar when we move house. My first choice is the REA Fusion 2 Solar Panels, Enphase microinverters and Givenergy AIO. South east and south west facing, I like the idea of the battery providing emergency electricity for things like the fridge, router, home office, home server and 3d printer.

These seem cheap. They are a higher wattage because they are larger. Not great warranty. I guess they are not double-glazed (edited)
1st May
You'll need a different battery set up with micro inverters because they output ac current whereas the battery stores DC current. Octopus are working with Enphase on this if you search recent news.
1st May
What batteries & invertors would people recommend?
1st May
Fogstar, Renogy, Eco worthy, pylontech or victron. Victron are the most expensive. You could go modular with Renogy inverter and separate MPPT or the MPP Solar all in ones are good. For grid tied you could go with Huawei hybrid inverter. Hybrid inverters allow for the battery connection directly.
1st May
Wouldn't touch Longi with a bargepole. Extremely low end panel with a high failure rate and a warranty not worth the paper it was printed on.
1st May
How long your cable is to your inverter. Longer cable means more losses. For an office consider a 48volt inverter and battery (the voltages must match) for better efficiency but 48volt can be more dangerous as that voltage can penetrate skin whereas 24 and 12 volt cannot. 48 volt does not need as thick wiring as the current is lower. Ensure the voltage of the panels in series does not exceed the inverter max voltage eg. 3 panels might produce 120 volts whilst your inverter is only rated at 100 volts although 500v inverters are common now. Consider a fuse between your battery and inverter and DC and AC disconnect switches for safety. Consider that the inverter has a self-consumption power draw (could be 30 watts for example) so might need a bigger battery. South facing panels generate more overall than an east-west system. Bifacial panels might be better for the UK.
1st May
cityplumbing.co.uk/p/l…545

I have a couple of these running into a bluetti AC200max. Not as powerful as the the op ones but if you want to build a system as you can afford it these are superb (£60.00 each). free delivery from city plumbing as well.
1st May
Are micro inverters better than optimizers? - for UK conditions

1st May
You won't need optimisers or micro inverters if you don't suffer from shading! altho micro inverters seem the best way to go these days as you can monitor each panel
1st May
Sorry for the real basic questions.

Am I right that on a sunny day these would generate 5kwh of energy every hour, i.e. very roughly saving me £1 an hour on current price cap (if I used the energy).

I think the average sunlight for solar panels is about 1400 hours in the UK over a year, so potentially could save me £1,400 best case scenario.

I think Octopus pay 12p per kwh, so worse case scenario if I dont use it myself might be £700-£800 a year saving
Author
1st May
My understanding is 5.35kW in sunshine per hour, but the yearly amount in southern UK with panels at optimum (unshaded, south facing, 35 degrees) would be approx 5350 KWh.

Good link here which shows the calculations
exeoenergy.co.uk/sol…put
1st May
I have a 22ft x 9ft container office which I was going to put corrugated roofing for longevity however this seems pretty reasonable. Things to consider/tips?
1st May
Consider the orientation and a decent rack so you can get the right altitude. Face them south at 45 degrees and your yield will be optimal. Don't pay out for snide charge controllers either. I did and ended up buying all victron after. Well worth the money.
1st May
To connect to grid you'll need an MCS installer to fit them.
1st May
That is not correct. You can fit your own up to 3.6 KW but you need an electrician to wire to the grid from your meter and fill in a G99 form to let your electricity company know you may be feeding in to the grid. Can be emailed after the installation. (edited)
1st May
I have an existing GivEnergy Inverter, and one string of solar panels on our south facing roof.

If I was tempted to add more on a smaller SW-facing roof and bought some of these - what other costs would I be expecting... scaffolding? Frames? A GivEnergy approved installer to connect it all up and add to my system?
1st May
Blimey some well informed people on here, confuses the hell out of me. I cant get my head around on how my house can run off a battery. just looked at my smart meter, Tuesday i used 38kwh.

Not even summer yet, once the air con goes on, it will get even higher. I imagine i would need an extension just to store all the batteries, lol
1st May
Does not matter how cheap these panels do get.
Ultimately planting them on the roof with a roofer is and always will be the biggest expense by far.

I only wish Solar panels become more plug and play in the future.
Maybe one day we can use them as fence panels!
1st May
You can. Bifacial panels have been trialled as fencing on motorways, on farms and even on the sides of buildings. With the right orientation, they will yield a good amount of energy.
1st May
Have a 415 watt panel on VW van, amazing stuff.
4 h, 3 m ago
Expired