This is Takinini at 4:30 on a Saturday (yesterday) when I brought my leaf to charge and saw another THREE lined up for the single CHaDmo cable that Vector provides (free) here.
I have to agree with the lack of foresight shown. Single chargers put in are generally all that is needed right now, but it isn't going to take long before they are woefully inadequate. I've charged at Takanini, there was a Leaf plugged in but at 100% so I unplugged it and plugged my Leaf in, when I got back to my car there was a Leaf beside mine and a note asking me to plug them in when I was done, naturally I obliged. It looks like Takanini really needs 2 CHAdeMO chargers right now, but maybe it will need 4 within a couple of years.
At least Tesla tends to put 4 charging stations in when they build a Supercharger, that is good forward thinking.
Originally I thought that the chargers were capable of charging 2 cars at once, but when I went to use one I realised that even with a CHAdeMo and CCS car there was no way of charging both at once. There are two cables but they can't be used at the same time, the charger can only deliver 50kW in total so only one car at a time can be charged. I'm hoping that the charging points can be increased relatively easily and that where there is one they could quickly enough put another in if the usage levels prove to be enough to justify it. I do think that over the next 5 years we will see very large growth in the numbers of EVs on the roads in NZ.
Currently, the 40kWh cars available are most likely capable for most motorists, but it will take 60kWh cars to provide the range that most motorists THINK they need. In 2019 there will be multiple models available with 60kWh batteries that can run ~360km on a charge, I think that a lot of motorists will see that as being worth considering. I could drive from the Waikato to Wellington with just one stop if I had 60kWh of battery storage and I would want to make a stop anyway because that would be a long drive and I'd get hungry and need to drain my bladder and stretch my legs. If we had 25,000 EVs on the road in 2 years time then there would be a lot more EVs that might need to use a fast charger.