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New Zealand is going through growing pains.With 12% of all new vehicles sold today being electric vehicles, there is increasing pressure to provide coordinated and cost-effective charging in medium- and high-density dwellings.Rob Speir, general manager of sales and marketing for New Zealand company Evnex, told me a similar story to what I heard from Australian suppliers.
Auckland is New Zealand’s most populous region with nearly 2 million residents.The city contains many medium and high density housing.There are many apartment buildings under construction, ranging in size from 16 to 70 units.Developers are considering offering EV charging, but have had some difficulty fixing some issues.For example, how much electricity does the building require?If the building needs 1000 amps, do I need to allocate 200 amps to charge the electric car?What happens at peak times?Off-peak period?How many parking spaces will the service provide?Do they all have to be electrified?Electrical consultants are grappling with the new world order as developers move toward installation.
Rob told me that the Body Corporate Chairs Panel conducted a membership survey of 350 members.The big question is how to advise members on the best process to get involved.Like any emerging industry, there are good and bad.A 50-unit apartment building in Auckland allows residents to install a variety of chargers.Some are smart, some are not.Even with a dedicated board, it doesn’t work properly.Some have installed 22 kW chargers, some have installed 15 amp plugs.Tesla chargers are using too much energy.It looks like they need to be removed and reinstalled.Poor load management.
Evnex recommends installing the core power supply first.Now that the core infrastructure is in place, install separate chargers as needed.The chargers communicate with each other and with the system.Evnex can supply chargers and can also accommodate 3rd party chargers.
There is currently no government support for installing chargers in apartment buildings.Evnex and other vendors are in talks with government agencies about smart charging and expect some regulation by 2024, perhaps to stimulate the market.However, between now and then, there will be a lot of buildings – which may need to be remodeled.”We need a carrot or a stick, or both,” Rob said.
Perhaps a big part of the equation is the need for public education.Rob lives in a leafy suburb of Auckland – everyone is Green.Nine out of about 30 houses on this street have electric cars.Two of the households are multi-EV households.With no on-street parking available, one resident started charging his car by running the extension cord out of the window and across the sidewalk.We’ve all done crazy things in emergencies, but apparently it’s the norm.
Plug the power cord into a specially modified Tupperware box and connect to the car’s trickle charger plugged in from the other side.Lots of rain in the area!
Neighbors are waiting for an explosion (due to overheating), or an old lady tripping while walking her dog, or the police.
Rob told me they think the 3-pin plug is their main competitor in New Zealand, not other smart chargers.“Most people would think using a 3-pin plug is the right choice – cheap and convenient. But from a utility standpoint, it’s the worst option because it’s uncontrolled charging. We need to cultivate energy flexibility Sex. Smart chargers at home and at work are the best option in the long run.”
Energy flexibility can be traded.Electricity distributors need the flexibility to secure supply and be willing to pay for it.The system is still calculating the size of an EV charger that could provide this capability.Just as a lot of electricity can benefit costs, so can electric vehicles, resulting in the cleanest energy at the best price.Evnex is actively looking for flexible traders.
David Waterworth is a retired teacher who divides his time between caring for his grandchildren and working to ensure they have a planet to live on.He’s long-term bullish on Tesla [NASDAQ: TSLA].
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Post time: Jun-17-2022