Dillsue

So that would make it a G98 compliant unit

G98 has more onerous/specific requirents than those in the harmonised standards associated with the various EU/UK directives. As an example you can get a CE/UKAS marked inverter that meets all the requirements to legitimately be sold in the EU/UK but you can't connect that to the grid without complying with the countries grid connection standards, G98/G99 for the UK

For some maybe. Out of the box our solaredge ones are higher!!!!

If your ditching G98 for sub 800watt systems how are all the safety requirements going to be specified??

Yep that's as it is....as previous page!! It will "self regulate" but those at the extremities of the flats will never get started on sunny days as the voltage will be too high. Without a stream of notifications every block of flats could have problems for years before the DNO recognises the problem and schedules in any alterations needed

Firstly, it can't be exempted as G98 covers a load of safety requirements. If they do away with G98 they'll have to write a new spec for plug in solar and that isn't gonna get done in a few months. G98 already covers sub 800watt generators and gives a few exemptions for those. Recognising plug in systems may be an additional exemption but still part of G98 Secondly, they can't dispense with notification because.....if all your neighbours installed 3.68kw solar but didn't tell the DNO then first sunny day the local voltage would rocket and push the voltage past the max limit and your inverter(when installed!) could trip. You wouldn't be happy. Imagine 50% of a block of flats installing plug in systems that the DNO didn't know about it so could bolster the local grid and/or drop the supply voltage, it would be bedlam.

That's not how it works. The right to connect generation up to 3.68kw is defined in the national terms of connection which is what legally governs everyone's connection. There's likely some exceptional situations where a DNO can object but generally everyone can connect up to 3.68kw. I put self installed on my G99 and my son in law put self installed on his G98 both accepted by our DNO Some sort of notification should exist so DNOs can manage the network. That could be a part prefilled G98 included with plug in solar so the buyer only has to fill in their address and post it. Not onerous stall to do that

Similar to importing hazardous kit from un regulated sources.....the majority can probably evaluate the risks and manage accordingly, those that dont have a higher risk of "self extinction"

There's already some exemptions within G98 for less than 800watt generators but the bulk of requirements are likely to still apply?? Most of the requirements are to ensure safety and grid stability so you wouldn't want to loose those. Definitely need to retain the notification process or you could end up with a massive install base on say a block of flats pushing the local voltage through the roof on a sunny day If you want to above 3.68kw then G99, but if you're adding to existing but staying under the 3.86kw limit for multiple G98 certified systems then I guess you submit a new G98 notification and list all the devices with a total certified limit of 3.68kw??

I'm sure the regulators do think of those but most certainly dont document those thoughts!

I'm pretty sure that within compliant inverters there's multiple layers of disconnection so there's unlikely to be a scenario where a single failure within the inverter will keep the power on the plug

Safety never comes with an absolute guarantee and its all managed/regulated on the basis of what is reasonable. Theres 1600 people killed on british roads each year yet were still all free to drive at potentially lethal speeds. Theres 1000s die prematurely each year due to poor urban air quality yet we can still burn oil/gas/diesel/wood in urban areas. Plug in solar, as with anything at dangerous voltage, might injure or even kill the odd person that misuses it or CHOOSES to personally import it and potentially bypass UK/EU safety regulation, but their loss is likely to be outweighed by the benefits

A single <800w plug in solar is going to put around 3 amps into the circuit which the circuits MCB/fuse wont see. I dont know what the max a typical ring is rated for but I'd be certain there's enough difference between the max capacity and a typical 32amp MCB for the cable to safely absorb the 3 amps. I don't see why your spark was fretting about a single plug in solar and an adjacent load? Obviously if you're buying cheap stuff from non EU suppliers then you take on board the risk of using potentially unregulated stuff.....but that's as we are now with a whole load of dodgy imported stuff. Don't know where the granny charger that scorched a socket came from but the few weeks we used ours before a proper charger went in, and there weren't any problems. The plug was warm after a few hours but nowhere near damaging anything. Was the one your referring to a cheap import?

?? Maybe I'm missing something but a faulty anything is limited to 13amp by the fuse in the plug which is way less than 2.5mm cable can carry. Any adjacent plug in solar is only offsetting what that faulty load would draw from the consumer unit but is again limited to 13amp by its plug? If plug in solar is limited to 800watt then it's hard to see a problem?? Unless....... If you plugged in multiple plug in solar units then you could have a problem if you also plug in multiple high loads, that's where the regulators might have a problem but thats the same problem Europe will already be dealing with??

Unless you want to join one of the export payment schemes AFAIK there's currently no requirement for MCS certification or testing for anything....products or installations??