Electric Cars Still Struggling.

RodTungsten

Member
Messages
641
… now I don’t want to start a power struggle but with apologies to the Salford brewer but the North Sea Interconnector is rated in Watts - 1,400M of them. What is really impressive is that it’s a DC link and if you are turned on by that sort of thing the conversion kit (both ways) is worth reading up on.

Another interesting fact (well to me anyway) is that NOR like a lot of the Continent uses 16 2/3 Hz AC for traction power - we use 50Hz. I never knew that.⚡️
 

CatmanV2

Member
Messages
50,526
… now I don’t want to start a power struggle but with apologies to the Salford brewer but the North Sea Interconnector is rated in Watts - 1,400M of them. What is really impressive is that it’s a DC link and if you are turned on by that sort of thing the conversion kit (both ways) is worth reading up on.

Another interesting fact (well to me anyway) is that NOR like a lot of the Continent uses 16 2/3 Hz AC for traction power - we use 50Hz. I never knew that.⚡️

I haven't got the energy ;)

Maybe I have. It may well be *rated* in Watts, but that's cos we send Joules ;)

C
 

MarkMas

Chief pedant
Messages
9,725
Norway - just came back from the fjords. Lots of EV’s, charge points, EV concessions and battery powered ferries - apart from the Expressboats - 32 knots - diesel - hold tight!

Plenty of hydroelectric sources - the UK is Interconnected at Blyth and consumes plenty, though when we have a surplus we send the Watts back to save Norway’s water!



I've looked this up now. If Watts are Joules per Second, then surely what we send (every second) are Watts. (??)
 

CatmanV2

Member
Messages
50,526
I've looked this up now. If Watts are Joules per Second, then surely what we send (every second) are Watts. (??)

No because then we'd be sending Watts per second. 100W is 100 Joules per second. So After 10 seconds, you'd have transferred 1000 Joules at a rate of 100W.

C
 

philw696

Member
Messages
27,144
Financial Times reporting that since the used values have plummeted massively sales of them are now soaring.
 

Zep

Moderator
Messages
9,631
I don’t think that explains it very well.

Think of it as speed (Watt) vs distance covered (Joule)

For me

Joule = work or force total
Watt = work or force in given time (hence Joule per Second)

Example: A potato might contain 300 joules of energy but when you use it as a battery with zinc and copper electrodes, the chemical energy off 300 joules is released at a rate of 10 a second. So that is 10 watts for 30 seconds.
 

Oneball

Member
Messages
11,461
For me

Joule = work or force total
Watt = work or force in given time (hence Joule per Second)

Example: A potato might contain 300 joules of energy but when you use it as a battery with zinc and copper electrodes, the chemical energy off 300 joules is released at a rate of 10 a second. So that is 10 watts for 30 seconds.
How many potatoes do I need to start my Maserati?