Mattg4321

I fitted a manual changeover switch to bypass the inverter in the case of the inverter failing, so I can still get power to the circuits fed from the load terminals of the inverter. Also, you’re only considering the maximum load going through the inverter to the load terminals when the grid is down. What about under normal usage with grid connected? There is likely to be a limit that might be the same as when grid is down.

A lot of this foreign made/focused equipment comes with instructions not suitable for the uk imo. EV chargers are another one, although slightly better since the uk regs have stabilised somewhat in the last 4 years or so. Bottom line is you need someone who knows what they are doing to install it.

I'm no roofer either, but I agree with what Nick says. The eaves tray/whatever eaves protection strip has been used should touch the gutter imo. It looks like it stops 20-30mm short, leaving a gap for wind driven rain/splashback from the gutter.

In theory perhaps not, however this is all academic, because that's what the regulations say. You can't leave live conductors connected to the grid when operating a generating set/inverter and you can't make your own neutral - earth link when connected to the grid. In any case, it won't work when connected like this as you'll have parallel neutral paths and any RCD protecting the grid supply to the inverter will trip out as some current will go via the neutral at the RCD and some via the neutral bar. That schematic is a load of %@!$. I'd be interested to hear what Growatt come back to you with!!

If live conductors are left connected to the grid the inverter could backfeed the grid causing unexpected voltages for DNO linesmen. In practice it may well not be a problem if only the neutral was left connected to DNO grid, but that would be against the regulations and have the potential to be dangerous to DNO under certain fault conditions/if the inverter was incorrectly installed.

That schematic is wrong and potentially dangerous in the wrong hands. All 'live' conductors (this includes neutral, don't confuse live with line) must be disconnected from the grid when in island mode. This is a safety issue to protect people working on the DNO side. The schematic shows the neutral from the load connectors connected to a common neutral bar with the grid neutral. This is wrong. Most, if not all, of these inverters are made for foreign markets and the instructions are either nonsense or dangerous when applied here in the UK imo. I would like to imagine that the L&N are both disconnected from the grid entirely when in island mode, but I've not fitted a Growatt before. My Sunsynk does do this.

You won't have an earth-neutral bond once the grid is disconnected from your installation by the inverter in the event of a power cut. DNO earth-neutral bond isn't necessarily at your intake position either. It certainly won't be in a TN-S earthing system (although yours is likely to be TN-C-S (PME) if a new connection).

The same Germany whose economy is f@&£d due to high energy prices, due to idiotic policy?

It’s a bit like giving away Chagos and paying billions to lease it back. Total madness. These people should be removed from their posts immediately for that sort of treasonous behaviour. The only thing that makes sense is the elites wanting to virtue signal on the world stage or personal monetary gain. There’s no other explanation for half this madness.

Half the problem is the debate at national level is binary. One side is renewables are great, shut everything else down asap, we don’t need it and the planet is ‘on fire’. The other is don’t bother with renewables, keep burning FF. Both are idiotic. I just want the lowest price energy possible. I definitely care about air quality and pollution. I admit that I don’t worry about co2 emissions very much at all. We can’t do anything about it in the U.K. anyway, so I don’t want to be impoverished via virtue signalling. I read today that the government are thinking of forcing blast furnaces producing steel to buy carbon credits on the open market. Currently they effectively get a free pass. Scunthorpe is already losing £1M a day! We obviously need the ability to make virgin steel from a national security pov. Are they insane? I sometimes wonder…

It’s not as simple as that, or it would have been done already. People have been banging on about changing the pricing mechanism for years now. It has to be viable for the gas generation to remain on standby for use in times of dunkelflaute. Renewables can’t be relied upon 24/7/365 yet. So we need to pay for a backup. If the cost per unit to generate don’t take account of it (they don’t), they are false. I’m all for diversifying away from FF for our energy security and cleaner air. On that we totally agree. It has to be done in a sensible way to protect what tiny industrial capacity we have left, not to mention consumer prices. Energy security, cleaner air/less pollution and prices as low as possible are the reasons to change our energy mix, not net zero, which is largely a con.

Here’s the longer version of the argument. It’s interesting to watch and both make good points. A quarter of my family is Arab Muslim and my mum was born in Baghdad and only came here when she was 7 years old. So what does she tick on the form? Probably whatever she feels comfortable with. Is she ‘English’? My friend was born in Kenya to white British parents. He lived there for the first 15 years of his life. Can he call himself ‘Kenyan’? It’s a grey area really and it people can obviously describe themselves as whatever they want, but other people are probably going to judge for themselves. Rishi Sunak is clearly not ethnically English, but if he wants to call himself English I have no problem with that. What this really seems to be about is that Kisin has a different view to you on net zero so you smear him as racist/sexist or some other ‘ist’. It’s been going on for so long now and it doesn’t really work anymore. Play the ball, not the man.

Kisin says himself that he’s ’brown skinned’, so why would be racist towards non whites. Your reasoning is a case of 2+2=5 If English is not an ethnic group then why is it in the census? There are ethnic groups whether you like it or not. If I walked round a city filled with entirely Slavic peoples then I would realise it pretty quickly. Similarly if they were Latin or Asian or whatever. Stating the obvious doesn’t make someone a racist other than in the kind of someone who has already made their mind up.

Open mind not possible for some people. Net zero is a cult.

Does he say later that he’s British in the second clip? I think I would tend to agree that Sunak is not English in the ethnic sense. It depends on how you define it though. If he maintains that someone who is not ethnically English, is British rather than English, so what. That doesn’t mean he’s racist - look up the definition. The guy is an immigrant himself.