Author Topic: E Vehicles  (Read 567 times)

0 Members and 1 Guest are viewing this topic.

Offline tjsmada

  • Posts: 56
Re: E Vehicles
« Reply #15 on: October 17, 2017, 06:57:41 pm »
Just as nature intended then  ;)

Offline Worms

  • **
  • **
  • Posts: 251
Re: E Vehicles
« Reply #16 on: October 17, 2017, 07:49:49 pm »
At what percentage of NZs vehicle fleet being electric, do we run out of electricity (again)?

The last time we had to reduce consumption wasn't too long ago, was it?

Offline Gordo

  • ##
  • **
  • Posts: 3660
Re: E Vehicles
« Reply #17 on: October 17, 2017, 08:41:34 pm »
At what percentage of NZs vehicle fleet being electric, do we run out of electricity (again)?

The last time we had to reduce consumption wasn't too long ago, was it?

And with the typical government shortsighted pennypinching there is also a decent risk of losing the main feed to Auckland as they decided not only to run the secondary power line through the volcanic plateau - with the probability of losing it from physical damage or from a build up of volcanic dust across the insulators - but they decided against a backup gas generator at Marsden Point where, IIRC, they took out the coal burner.
In theory, electric all the way, but there are also drawbacks.
These are my thoughts and opinions - sometimes I'm wrong, but not often ;-)

Offline brian

  • ##
  • **
  • Posts: 2511
Re: E Vehicles
« Reply #18 on: October 17, 2017, 09:18:31 pm »
And with the typical government shortsighted pennypinching there is also a decent risk of losing the main feed to Auckland as they decided not only to run the secondary power line through the volcanic plateau - with the probability of losing it from physical damage or from a build up of volcanic dust across the insulators - but they decided against a backup gas generator at Marsden Point where, IIRC, they took out the coal burner.
In theory, electric all the way, but there are also drawbacks.

Who's concerned about the Auckland electricity supply? ;D
1.6 Polo

Offline Pushbutton_auto

  • ##
  • **
  • Posts: 3141
Re: E Vehicles
« Reply #19 on: October 17, 2017, 09:51:45 pm »
We just tell Rio Tinto to fk off .........

 :)
Beating up parking wardens ain't a crime.

Offline Gordo

  • ##
  • **
  • Posts: 3660
Re: E Vehicles
« Reply #20 on: October 18, 2017, 11:43:34 am »
Lose the straits cable and everyone in the North Island is f***ed - or when the quake* takes out Haywards.
The Rio Tinto comment seems particularly WTF? - being south of the main power generation would mean anything down there would have f***-all affect on distribution issues in the North Island.
These are my thoughts and opinions - sometimes I'm wrong, but not often ;-)

Offline the phantom

  • ##
  • **
  • Posts: 3213
Re: E Vehicles
« Reply #21 on: October 18, 2017, 06:47:04 pm »
Lose the straits cable and everyone in the North Island is f***ed - or when the quake* takes out Haywards.
The Rio Tinto comment seems particularly WTF? - being south of the main power generation would mean anything down there would have f***-all affect on distribution issues in the North Island.

"The smelter's power demand from the national grid is about 570 MW. Most of the energy for the smelter is supplied from the Manapouri hydroelectric power station, via two double circuit 220 kV transmission lines. The facility is the largest electricity consumer in New Zealand, and uses approximately one third of the total electricity consumed in the South Island and 13% of the total electricity nationwide, equivalent to about 680,000 households."  Wikipedia

does electicity run downhill?
Land Transport New Zealand, taking the fun out of driving since August 2008

Online schattenblau

  • ##
  • **
  • Posts: 3335
Re: E Vehicles
« Reply #22 on: October 18, 2017, 06:57:08 pm »
yes and no.

electricity is affected by gravity.

but the effect is negligible.

 ;D

Offline the phantom

  • ##
  • **
  • Posts: 3213
Re: E Vehicles
« Reply #23 on: October 18, 2017, 07:57:20 pm »

but the effect is negligible.

 ;D

so the effect of gravity drawing electricity south towards the smelter is offset by the centrifugal force generated by the earth's rotation which would tend to send it to the North Island?  8)
Land Transport New Zealand, taking the fun out of driving since August 2008

Offline Gordo

  • ##
  • **
  • Posts: 3660
Re: E Vehicles
« Reply #24 on: October 19, 2017, 01:05:01 pm »
"The smelter's power demand from the national grid is about 570 MW. Most of the energy for the smelter is supplied from the Manapouri hydroelectric power station, via two double circuit 220 kV transmission lines. The facility is the largest electricity consumer in New Zealand, and uses approximately one third of the total electricity consumed in the South Island and 13% of the total electricity nationwide, equivalent to about 680,000 households."  Wikipedia

does electicity run downhill?

Don't try and be a smart-ass, guys - you can only do the latter part  :laugh:

Three things wrong with the windup - electricity moves in a circuit, or loop, so any perceived advantage in one direction is cancelled by the reversal in the other - and if anything, the earth's magnetic field would have more effect in a single direction.
The second is that it is just convention that has North to the top as there are other alternatives - http://www.bellerbyandco.com/index.php/globes.html so you can set your own perspecive, or for more conventional maps - https://www.flourish.org/upsidedownmap/
And, third, electricity needs a physical circuit to pass through and if it is broken - like losing the Cook Strait Cable or the Haywards transformer - it doesn't work or, come to that, the South Island end that converted the power from AC to DC for the cable.
« Last Edit: October 19, 2017, 02:41:55 pm by Gordo »
These are my thoughts and opinions - sometimes I'm wrong, but not often ;-)