Balcony Solar Is Coming!

[joth]

According to City Plumbing: 

• The updated safety standards are covered by BS7671 18th edition Amendment 4
• G98 notification will still be required, within 28 days of connection

Surely only a minority will actually bother with the G98 for plug-in.  It feels to me like requiring purchase of a CB license in the 80s: technically a legal requirement but fat chance of enforcement, so long as one doesn't egregiously flout the regulations. That'd be my guess.

 

 

[Roger440]

9 hours ago, Beelbeebub said:

There would be an interesting case for people with old style meters, they would just run backwards so any export would be effectively net metered, ie your effective payment per kwh export would be whatever you import unit cost would be! 😁 

 

[Roger440]

On 28/03/2026 at 14:57, Dillsue said:

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.

 

I appreciate you are looking at this from an engineering view point, but it just isnt going to happen. Ie, notifications. Even if the law said you must.

 

Its called the real world. If you can get this from the supermarket, or online, and plug it in, people will. No one cares or understands G98 out side of electricians and enthusiastic ametuers.

 

The tech arguments are irrelavant, because the above is what will happen in real life.

[Crofter]

How does it work in Germany? Do they have to notify anybody?

[Roger440]

21 minutes ago, Crofter said:

How does it work in Germany? Do they have to notify anybody?

 

No idea. Be good to know.

 

But if they do, germans being german will always follow the rules.

 

Midly amusing story. Went to see one of our distributors in germany. He took us out to dinner in hamburg. Then to a pub.

 

Anyway, he drove a big dodge ram and styled himself as a bit of a renegade/cowboy, against the german system etc.

 

We walked back to the hotel, about 1am. No one about. Got to a cross roads and i crossed the road. He shouted to me to stop. I said "why". Because the pedestrian signal is Red he says. 

 

He simply couldnt understand or accept that i would cross the road, using my own judgement to do so when there was a light. There were NO moving cars in sight. anywhere.

 

I found it an enlightening insight to german thinking. Albeit an isolated one.

 

Needless to say, he took some ribbing from that point on.

[Beelbeebub]

The crux for me is that these systems have been working away in Europe for several years now. 

 

Unless there is some fundamental difference between our systems and European ones - maybe the fact we use ring mains or something - I can't seen there being a problem, beyond regulations and paperwork. 

[-rick-]

1 hour ago, Roger440 said:

Its called the real world. If you can get this from the supermarket, or online, and plug it in, people will. No one cares or understands G98 out side of electricians and enthusiastic ametuers.

 

Sure and agree. I tend to think that we should not have rules in place we don't expect many to follow hence why I don't think registration should be required. However, I think we've already covered how as long as these things meet regs then registration is just bureaucracy not a safety matter.

 

Preventing non-compliant devices should be dealt with by focusing on ensuring the retaillers don't sell them. 

[DamonHD]

1 hour ago, Crofter said:

How does it work in Germany? Do they have to notify anybody?

"the registration with the network operator is no longer required. Only in the so-called market master data register of the Federal Network Agency, balcony solar devices must be registered. This is done with a few mouse clicks."

 

https://www.tagesschau.de/wirtschaft/energie/energiewende-balkonkraftwerke-100.html