




Not only distribution but generation as well. NZ is 80% renewable but to service a large number of electric vehicles some of the old coal stations will have to be brought back online, either that or huge expenditure on what? We could go nuclear or build new thermal plants, not cheap whichever you choose.
Cheers





and then there's baws line losses to the auckland cos they have 240VAC dildos and shit.
Microgeneration yo. ever neighbourhood should have a box of batteries (liek, at a telephone exchange) and every new build should be required to produce 120% of it's electricity requirement. but, y'know. publi-private "partnerships" (rent back what you paid to build), jews and profit and shit.
vote akzle.





Surely this is a matter of using a Fermi Equation
It is a matter of energy and its use
using rough approximations and intelligent (cassina not need apply) estimates we could work out how much electricity would be needed
(surprised Husaberg hasn't done it already, but feel free to chip in)
We know what amount of petrol for instance is consumed in NZ (fuel volume)
If we assumed 90% is used in cars for transport
and that cars are approximately 80% efficient
would could work out how much energy we used for this.
I would agree with Jellywrestler - we probably don't have enough generation currently
We have gas, hydro, wind, coal, solar and wave options for generating electricity
We know public opinion is against coal
If we were to assume that the total amount of generation of electricity is known
We would need to assume that thermal (coal/gas) would be about 75% or less of rated output (standby and maintenance)
Wind is dependant on, well wind
Solar - on the Sun
If someone where able to find this out we could give a reasonable estimate on the actual available electrical energy
This is forgetting those plants like Fonterra who may use coal or gas for boilers etc and Tiwai Point Aluminium Smelter, NZ Steel etc
If we said there is only a very small existing vehicle base using electricity,
we could assume current generation is meeting the existing consumer base
New electric vehicles would be an added load from the demise of petrol (or just new ones)
If we said electrical transmission was approx. 90% efficient would would be close
We know electric motors are about 90% efficient (I need to check this)
Maybe a bit rambling and I need to work on it a lot more
but I think the basis is there for a good estimate of what we need.
This is just from the top of my head
Its the sort of load questions always put forward to electrical engineers, about how social change can change demand/load.
In the 80's it was things like spa pools, 2000's heat pumps and the rise of use of computers and large TVs (their power draw is far less)
and if you live in the boonies (like some on here, expect transmission costs to rise)
READ AND UDESTAND





more like 60%.*
*on a good day, not fuckwits sitting in traffic for 3hours a a day.
there was actually a study done about this, with the whole inertia and start-stopping 2 tonnes thing. no real surprises in it. cars are shit, and townies with cars are shittest.more like 70%
If we said electrical transmission was approx. 90% efficient would would be close
DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.
Possibilities...
Increase efficiency, both the network and end users - insulate homes, go to bigger conductors on trunk transmission lines, more efficient transmission transformers, widespread switchover to LED lighting, better insulated fridges and freezers etc etc
Work out a technical solution to scheduling charging overnight - currently one of the major problems with NZ electrical distribution is the massive loading that happens around 6pm when the lights and the stove go on, if the charging loading can be 'booked in' for the wee small hours then peaks can be flattened out instead of having a second peak demand around 8 to 10 pm
Link charging demand to surplus wind turbine generation, currently dumping surplus power from the wind turbines is something of an issue
Increase generation, particularly local / rural - follow the German model and kickstart an entire industry by passing laws requiring line companies pay small power generators 3x the cost of drawing electricity
Decentralise manufacturing / industry / commerce etc and spread out a bit more, reducing net commutes... honestly are we doing all this so more people can get stuck in traffic in Auckland?
More generation through more wind turbines and possibly more tidal or current turbines installed in harbour mouths or high flow passages like Cook Strait etc
More generation through solar in sunny places like Gisborne or far north
... there's a lot of things we can do, I guess it comes down to the vision and the will to make it happen.




Hey. watch it, Lake Coleridge is about 20 minutes up the road - and one of the two major substations in Canterbury is 1 1/2km the other way...
When they perfect power transmission and receipt by tapping the emitted energy, I could probably just park across the road.
It's already rumoured that the sheep run in the substation grounds, glow in the dark....
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