They will do it after high voltage converted, on local substations, so it will not affect transmission. If UK rual areas get over 240v, about what loses we can speak.
The Grauniad reports Electricity North West plans to lower mains voltage
- Thread starter MotelBlues
- Start date
DirkDiction
Member
UK standard has been 230v for a fair few years now, I get 247v at my sockets so without delving too deep into Ohm’s Law it just means my equipment is going to take whatever power it needs anyway, but my cables are under less stress with the higher supply voltage while supplying said current demand
MikeMA
pfm Member
There will be transmission losses everywhere on the network, no matter what the voltage.
Cereal Killer
432
It’s a wonderful idea imho
davidsrsb
pfm Member
I cannot see all the local substations getting modified, so I suspect that they intend to reduce at the 33kV and 11kV level
This has the sneaky effect of reducing the load from all of the resistive loads like heaters, kettles and ovens, so peak demand is reduced - cheaper than building another power station
This has the sneaky effect of reducing the load from all of the resistive loads like heaters, kettles and ovens, so peak demand is reduced - cheaper than building another power station
Cereal Killer
432
Yes they just turn ‘the taps’ down in the local subs, but this is only good if the transformers are in tip-top condition.
glancaster
In the silicon vale
I'm not so sure, if it just leads to us leaving these things on a little longer to achieve the same effect, as will happen automatically with kettles and ovens. You might say: hey, that's average demand, I wrote peak demand! But, as there are so many end users, whose usage overlaps, that I'm not sure it makes any difference.
Richard Lines
pfm Member
Good Evening All,
FWIW I have noted that although the standard mains voltage by us is circa 243V when the solar PV is pushing out at circa 100% capacity the inverters are showing anything up to 257V.
We had one occasion several years ago on a very sunny and very windy April day when the local wind farm turbines were clearly cutting in and out and the relays on my inverters were doing overtime as the voltage hit 261V (G83 cut-off) and then dropped off, this went on for some hours until two of the three failed.
Not sure how the hi-fi would deal with that........
Regards
Richard
FWIW I have noted that although the standard mains voltage by us is circa 243V when the solar PV is pushing out at circa 100% capacity the inverters are showing anything up to 257V.
We had one occasion several years ago on a very sunny and very windy April day when the local wind farm turbines were clearly cutting in and out and the relays on my inverters were doing overtime as the voltage hit 261V (G83 cut-off) and then dropped off, this went on for some hours until two of the three failed.
Not sure how the hi-fi would deal with that........
Regards
Richard
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davidsrsb
pfm Member
My situation too, but we don't have wind farms in Malaysia and not much PV, just too much new coal and gas generation capacity
In my case the big UPS was tripping out at 260V, in a locked room.
A good reason for not leaving your equipment switched on 24x7