Відео

Could you get a statistical scientist in to check for any subtle degradation trends?

Tommy init looking Ahhh

Chimney delete + direct vent gas fireplace. No more shading.

Does that include unlimited cycles, and is the unit checked to see how much capacity is left, or is this shown on the app?

If you are retiling your houses roof anyway, then the payback metric is incorrect, as you'd need to subtract the cost of retiling normally from the total solar tiles cost to get the actual value of the solar addition, and then calculate how long it takes to pay THAT off. No one is expecting their normal solar panels to also pay for the whole roof tiles. It's not a fair comparison. This calculation only works if you are 100% committed to a new roof though.

Everyone should be doing this. Instead of building large solar farms and enhancing the grid.

What if? 🤔

Thanks for showing us what one looks like.

What's the situation with getting DNO approval for systems this size?

I am so annoyed you guys don't have a national installation service 😢. Could that be something you are looking at going forward? It is so difficult to find good reliable installers...

Do the DC cables not need protection (e.g. flexible conduit) when going between the felt overlaps ?

Preferred the look of "in roof" system myself as I have a slate roof which would not be easy to work with. All nailed on and very very brittle.

Bit late seeing video but does your company cover Essex

Ya know, this is something else. Those cool new bits are gonna turn heads for sure.

Is there any point in these? Spend £8000 to save a few quid a month on electric? 😂 I’ve ran the maths and don’t see the point.

ur hot

The ROI is way too long to be cost effective

It is a pity that you do not mention Nulok Solar tiles, which are available in the UK. 22.8% efficient apparently. Also, you do not mention the low light efficiency issue or the partial shading issue for the on roof panels that are always bigger than each individual solar tile. It would be great to see a follow up video covering Nulok and the issues mentioned. Keep up the good work.

I dont need bird protection for my solar system We have a black hole in the middle

Thank you for releasing this data! Very interesting!😊 🫶

what about the autism buy warrenty ? BORING

surly same with pw3 ?

Which do I need? Neither. But thanks for playing.

Interesting video, thank you. Watched it a few days ago, but I just had a thought - there are a couple of reasons it might be less, firstly I wonder how much of the output loss was related to horizon shading since it'd primarily be a factor in winter, and secondly, some cell types perform less well in low irradiance scenarios than others, and I don't know if the MCS models this at all. PVGIS doesn't seem to, at least.

Just worried that adding the Inverter (probable first point of failure) into the box is going to end up an expensive repair. Even if they do have 12 yrs warranty. I have been told inverters have a 10yr (ish) life and expect to replace mine then - with what should be a lot better technology by then.

If the panels were in a hot environment the degradation would be higher.

Interesting that (in both these cases, and presumably others), PVGIS underestimates summer, and overestimates winter, performance. The absolute size of the difference is about the same, but that's 20-25% in December, and only 5% in June. Ours (also from 2010) has consistently done somewhat better than the PVGIS estimate ( 5%-10% I think, but I'd need to check to be accurate).

20 years ago my mum died and left me 40k, so i thought solar would be nice so we spent 20 k on solar panels and invested the other 20 k, our electric bills 20 years ago were around 1200 a year now they would be double that so saved around 36k minus the daily connection charge which is around 14k so we are in the black to the tune of 22k over 20 years, the other 20k l invested is now worth over 70k, so to make myself feel better l tell myself l am saving the planet

Can't quite see on the table. Is the prices on the chart

Thank you for sharing this data!

My panels have produced 15% more than predicted over 14 years. I get maximum FIT payments, so they have been a great investment. They are Kioto panels, made in Austria. Cost £14,500 for 3.5kw system.

Good video. I do think installers have a tendancy to over egg the ROI or payback. Not due to degradation, but more due to the inflated every figures (price per kwh) they use. Eg, we got ours in September '22. Energy was ~32p kwh. Their prediction was that it would only go up and would keep doing so lol. I politely smiled and did my own calculations. If id have been using their own, It'd be 38.5p kwh. Whilst to be far it was technically a prediction, I pointed out the County would be back to the dark ages if that came true. Currently paying 22.3 peak, and 8.5 cheap rate, which I use 95% of the time thanks to the battery

Really hoping you can answer a question for me please, but as a side note here in mid wales our 4 kw installed has outperformed the MCS by around 7% since the 2 yrs of install. But my question, we are looking to move to north western spain, but, its the only bit with cooler wet winters. we are looking to optimise an installed array for winter production to power an ASHP. My understanding is that you add 15 degrees to the locations latitude of 42.5 degrees, (inclinnation angle 57.5) but when I do this winter production drops not rises this is using the EU PVGIS. many thx, loving the channel.

GivEnergy app updates every 10s when on the same network rather than remote, which is the 5 minutes as mentioned here

Did the grant pay the whole amount?

Bit of a ? Looking at the powerwall3 , 20kw input . With 3 mppt in the uk model with an amp range up to 480 and 12 400ish wat panels reaching 470ish thus would only allow 3 x 12 panel strings giving 14400kw (Canadian Solar HiKu6 395W All-Black Solar Panel | CS6R-395MS). Or am i missing somthing

I had an odd one at my previous address. No issues with the solar panels or inverter, but the generation meter developed a fault after 9 years and needed replacing.

such a shame their products have such poor reliability. if in doubt read the countless 1 star reviews that all say the same

Hi thanks. Any idea how much a planning permission for a ground mount, let’s say about 20 panels, would cost. Cheers

Would the scheme cover additional components to an existing ecosystem such as a second battery?

Very informative 👍🏼

Just because inverter is warrantied for 5,7,10 years doesn't mean it'll fail after 10 years and need replacing 3 times. An inverter in a garage where it's not suffering extremes of heat I could forsee lasting for a few decades. Don't install in a loft basically. And as they give off heat a utility room is also good as it's free heating

Really useful again, thank you, however it does raise a few immediate thoughts regarding maintenance and testing. If your property has solar, is the testing of this encompassed by EICR testing (particularly if rented where testing might be required more often). There is some contention regarding safety systems within regs - mandated or ‘nice to have’. II actually tried to obtain clarification from MCS and was very surprised by the opening part of their response:~ "MCS cannot comment specifically as we are not technically-trained..." I believe that.... BS7671 states that AC isolators should be fitted at both ends of cabling to a remote battery; and that DC should be able to be safely isolated from the invertor. The DTI schematic document shows both. IET COP PV, etc RC62 seems to suggest minimising connections in DC cabling as these could in themselves cause points of failure. Tesla state that the internal isolator (PW3) should not be relied on for maintenance, and that separate DC isolation should be provided. So what would you inspect/test/pass-fail if you were carrying out a maintenance or EICR visit? For cleaning, I'd be tempted to try motoring products such as RainX to clean panels and leave them anti-smear, and hopefully with a coating which 'de-wets' such that condensation is less likely to form or remain: I've seen quite a few at this time of year with condensation well into the morning, which I'm sure reduces production due to the diffused incident light.

I think people struggle to believe things they watch and see online

What are the incentives for landlords?

I'm hoping that someone does some real-world comparison testing of these top panels, so see how they behave on a UK roof. For example, we've seen Aiko do trade-show shadow testing of individual panels under floodlights, and some marketing videos, but not sure how that translates to the real world when panels are on a string, and get affected by clouds / tree branches / bird mess / etc. In theory it should be great. Do you see a difference on your client's arrays between these manufacturers?

Who can you recommend in the Derbyshire area

Well they don't tax sunshine yet

Yes profits are tax free, but it's apples and oranges when comparing solar investment vs stock market vs BTL properties.

Income tax is payable if you generate more than 120% of your domestic consumption?