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Re:Why does the USA use 110V and UK use 230-240V? by michaelt on Tuesday August 29, 2023 @06:52AM (#37305810)
> With modern appliances, power requirements are going up

Things like lightbulbs and TVs and computers and refrigerators are using less power than ever before.

Of course, if people are buying electric cars or replacing gas furnaces with electric heat pumps, then you're right on that side of things.

Re:Why does the USA use 110V and UK use 230-240V? by oblio on Tuesday August 29, 2023 @07:44AM (#37306274)
> Things like lightbulbs and TVs and computers and refrigerators are using less power than ever before.

Are they, though?

Lightbulbs, sure, we won with LEDs.

But TVs, especially the huge, high brightness ones we have nowadays? And with the extra computing needed?

Computers, same, I only see power usage going up. I mean PCs, we're not comparing things with mainframes here :-)

Refrigerators: are they really more efficient?

Now add: heat pump, induction stove, electric oven, more powerful AC, humidifiers/dehumidifiers, etc.

Re:Why does the USA use 110V and UK use 230-240V? by michaelt on Tuesday August 29, 2023 @08:51AM (#37307018)
Compared to the age of CRTs, modern TVs are much more power efficient.

And compared to the age of the Pentium 4 with its 100W+ TDP, laptops now outsell desktop computers by a long way.

(I would agree that things like high-end gaming GPUs are using more power than ever before - but they're also a much smaller % of sales than ever before)

Re:Why does the USA use 110V and UK use 230-240V? by oblio on Tuesday August 29, 2023 @08:55AM (#37307065)
> Compared to the age of CRTs, modern TVs are much more power efficient.

According to the internet a CRT TV used to use about 100W, while a big LCD TV can use more.

Regarding desktops, don't forget that these days we have many more electronic device in a home. Smart speakers, home media devices, consoles, etc, etc. Electronics probably use, in aggregate 5-10x what the old family PC used to use, I'd imagine.

Re:Why does the USA use 110V and UK use 230-240V? by selectodude on Tuesday August 29, 2023 @11:41AM (#37309574)
A 32” Sony trinitron would pull down about 200W. An 85” LCD will pull down about 150W.
Re:Why does the USA use 110V and UK use 230-240V? by bluGill on Tuesday August 29, 2023 @03:59PM (#37313093)
Though in the CRT days 19" was the most common size (large did exist). I'm not sure what the most common size TV is today, but it is bigger than that.
Re:Why does the USA use 110V and UK use 230-240V? by rootusrootus on Tuesday August 29, 2023 @07:08PM (#37315387)
The CRT TVs back in the 70s and 80s were pigs. Not 150W, more like 300W and sometimes more. It would take some work to make a modern LCD with similar consumption. Even when plasma was all the rage, it wasn't that bad.
Re:Why does the USA use 110V and UK use 230-240V? by dontlaugh on Tuesday August 29, 2023 @12:19PM (#37310146)
Gaming PCs are actually getting close to the safe limits for low voltage.