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UK households free to install plug-in balcony solar panels from end of August

theguardian.com

11–20 of 69 posts

Re: UK households free to install plug-in balcony solar panels from end of August

#11

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

U.K. wiring is obviously different

https://youtu.be/Na4LTD1M6nw

Seemed to cover a fair amount of the issues (or non issues)

Re: UK households free to install plug-in balcony solar panels from end of August

#12
post #10

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

The main risk factor is people trying to pump too much juice into a wall socket rated for a lesser current. Plus the connector needs to be male - shock risk. The combination of live and male is not generally something you see in households and people may not register that it’s something outside of normal household risk profile. That plus bit of risk of things being energised that say a lineman thought would be out. T…

Those risks are covered.

https://www.gov.uk/government/consultations/plug-in-solar

Re: UK households free to install plug-in balcony solar panels from end of August

#13

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

Is plug-in solar explicitly illegal in most states?

Re: UK households free to install plug-in balcony solar panels from end of August

#14
post #10

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

The main risk factor is people trying to pump too much juice into a wall socket rated for a lesser current. Plus the connector needs to be male - shock risk. The combination of live and male is not generally something you see in households and people may not register that it’s something outside of normal household risk profile. That plus bit of risk of things being energised that say a lineman thought would be out. T…

Linemen will always ground a transmission line before doing any work on it, unless live work is authorized, and then other safeguards apply. They never assume a line is actually dead just because it's supposed to be dead; they always assume there might be a backfeed or other source of potential on the line.

The balcony solar rigs (at least the properly designed ones) don't energize the male connector until they detect that it's plugged in. And they de-energize it if the mains/utility power goes out.

Re: UK households free to install plug-in balcony solar panels from end of August

#15

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

Is plug-in solar explicitly illegal in most states?

There is illegal, actively enforced illegal, and then there is 'your house burns down and insurance denies your claim because you didn't follow local laws' illegal

Re: UK households free to install plug-in balcony solar panels from end of August

#16

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

https://www.brightsaver.org/legislation-tracker has a beautiful day visualization map that shows state by state status!

The broader North East / New England is very far along!

Re: UK households free to install plug-in balcony solar panels from end of August

#17
post #12
post #10

Earlier quoted context omitted.

The main risk factor is people trying to pump too much juice into a wall socket rated for a lesser current. Plus the connector needs to be male - shock risk. The combination of live and male is not generally something you see in households and people may not register that it’s something outside of normal household risk profile. That plus bit of risk of things being energised that say a lineman thought would be out. T…

Those risks are covered. https://www.gov.uk/government/consultations/plug-in-solar

> Incorporate partially insulated pins to prevent access to live conductive parts

> Incorporate non-rewireable moulded plug fitted with a BS 1362 fuse not exceeding 5A

And anti-islanding, so it disables when the grid isn't live.

Seems quite reasonable. Also, like, this is a thing balcony solar is being done in lots of regions of the world now. Based on those parts of the world not burning down, not electrocuting people at scale, this is ipso facto all just a sad tired lot of ridiculous FUD.

Re: UK households free to install plug-in balcony solar panels from end of August

#18

Huh! Where does this stand in the US? I’ve always heard it’s significantly risky to plug power-generation directly into a wall outlet (though you can do it in a pinch)

Depends on power output.

Has been legal in Germany for some years but inverters have to be limited to 800W output so it doesn't overload the circut. Additionally, you're limited to 4 panels max 2000w peak total.

A lot of companies also offer batteries where the panels directly plug into and then into the wall. That way you're only feeding into your household when you're using it.

If you set it up correctly a lot of households manage to save up to 35% in electricity.

Re: UK households free to install plug-in balcony solar panels from end of August

#19
Not sure I quite get how this works from the wall plug PoV: if you have smart metering on your electricity, will it actually show you drawing less from the grid due to the input provided by the panels to your local wiring etc?

Or is that it actually goes back to the grid and you would pay your bill minus the amount you’ve fed back in?

Re: UK households free to install plug-in balcony solar panels from end of August

#20
As I understand it, the US is mostly waiting for UL listing of equipment, which hasn't been a priority because no US locals have allowed them. With Utah and others starting to allow them, UL listing will likely come at some point (hopefully shortly) thereafter.

There's this device: https://usa.apsystems.com/ez1-installers/

And also this: https://connectder.com/

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