Mains power voltage drop to reduce usage?

Home brewers know this feeling

Bill

Silly person.

Bill

Noooo! The blades come off and slice through your body as you sleep. Bill

If found one goes to prison.

Put a paper card in the mailbox for me to read the meter and mail to them.

If I don't, they charge me all the same, with an estimation that is higher than reality.

It is the same power as it was before, with the mechanical meter, or less.

LOL.

The others would also mandate smart meters.

Pure physics. Not amazing at all. Most people in Spain use it.

If you have an unused swimming pool in the basement of your apartment building, just throw in a small research reactor (100 kW to 1 MW) and you have heating for the winter :-)

And getting out of the valley could take half an hour, if you had a bottle of air to breath meanwhile.

Big generators are synchronous generators and the question is how do you connect a large number in parallel (in the national grid) and how properly share the generated power between them. The power delivered depends on the _phase_difference_ between generators i.e. a constant phase difference.

If there would be even a small _frequency_ difference between generators that would cause a constantly variable phase difference. If the phase difference would grow above 90 degrees, a catastrophic situation would occur.

Note that this method of synchronizing generators several hundred kilometers away from each other has been used for well over a century without any other synchronization connection, just the power grid.

Messing up with the frequency would also mess up the phase protection systems.

Wrong.

Well said, downunder. As a result, there cannot be a _frequency_ difference _anywhere_ in the net. The entire net must change frequency.

I'm curious.

Do they have to add chemicals to the water, to keep it clear, no algae or bacteria? Or simply the radiation keeps it "clean"?

Most parts of continental Europe are connected to a single 50 Hz synchronous network (UCTE). UK is connected to this network with under sea DC cables. Scandinavia is also connected to this UCTE network with DC cables. All these three networks are nominally 50 Hz but there are phase differences varying all the time.

Due to the AC/DC/AC connection across the Channel UK could do some strange thing with their network without affecting the continental Europe.or Scandinavia.

They strive to keep the generators perfectly in phase with the rest of the network. Allowing a phase difference would cause reactive power, which is wasteful. The power delivered is adjusted by regulating the field excitation. The input for the regulator is the mains frequency. There are set limits to that process, of course, to protect the installations.

The overall coupling constant for the European network is about 20GW/Hz, IIRC.

Jeroen Belleman

Every year or so someone dies in a farm tank or fuel tank that hasn't been ventilated.

Yes, the speed of the CO2 flooding would probably have been faster than you could run.

Like smoke inhalation in a fire.

That can in fact be done. And was done. And it wrecked equipment in German factories, so they installed their own exactly 50Hz inverters.

I think the problem originated in one of the ex eastern bloc nations.

Yes, the European mainland grid whilst it is not all of Europe, is synchronised. I believe Norway, the UK and Ireland, are definietly totally separate.

Yes. Unfortunately if the UK grid frequency drops too far, those inverters feeding it from the undersea DC will disconnect, as will all the wind farms and the solar panels, making everything worse.

It has already partially happened. Fortunately a large section of grid could be isolated and blacked out saving the rest.