Electric cars?

SirRumpole said:

So do I, however try and tell that to the climate zealots and they will chase you out of the room.

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Value Collector said:

As long as the charging is mostly happening over night, when the distribution system is laying idle, it would actually be good for the grid in general.

Also, having a bunch of Ev's in your area charging during the day would assist your local grid in dealing with your solar export problem, because the reason they are limiting your exports is so as not to over load the grid, the more demand in your area the more solar it can absorb.

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sptrawler said:

Back to where we first started and the current state of play. I stated eventually it will get sorted.


The other issue is whether the distribution system is up to the load requirements, on a lot of high density areas, the suburb distribution system will require upgrading.

As an example, I want to upgrade the solar on our free standing unit, the electrical supply authority have stipulated an export limiting device has to be fitted, so that only 3kW max can be put back into the system.

This will be a problem for many groups of units, or higher density areas, I could go into maximum demand designed distribition, but in short a lot of suburban distribution isn't set up for high EV usage and demand.
It will get sorted, but I would guess the distribution companies are happy with the slow take up of EV's

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Value Collector said:

Charging an ev can use less power than air conditioning, I feel if it’s timed right, the distribution system is up to it.

You can link up to 21 Tesla chargers together, set load limits, and the chargers will intelligently manage the load between the chargers to make sure the max load isn’t reached. Eg if all 21 chargers are being used each one gets 1.5 KWH, but as each car hits 100% the charging rate of the other cars increases.

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sptrawler said:

1. If you have a group of 15 units with a 100amp common distribution board and each unit puts on 6.6kW of solar and also 15 x 7kW chargers, there is going to be a problem.

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sptrawler said:

Now if there are 10 such complexes in the street, the problem compounds, then if there are 30 similar streets in the suburb the problem increases exponentially.
The distribution system has to be reconfigured, supplies have to upgraded, transformers have to be upgraded and in most cases changed to auto tap changing.
It has very little to do with gas turbines.

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