Preamble
For the claims that EV is straight forward and more convenient than an ICE (including hybrid), I do not share the same view. Of course, EVs have their merits.
This is based on an experience of owning an Atto 3 as a spare car and having had a rental for a good few days. The list goes from 1. Waiting for a charger, 2. Need to BYO cable, 3. Need to have some sort of charging ability at place of residence, 4. One app for each charging vendor – seriously, I thought credit card have eliminated this non-sense, and 5. The array of non standardised charging options at home.
The FBT exemption makes BEV an attractive option, and the arsenal of BEVs at home is steadily increasing owing to the courtesy of Australian tax payers. Therefore, it is time to instal a 7kws charger at home. It is a rabbit hole.
Vendors
Which ones are reputable from a safety point of view. The key is proper wiring on internal components in which dissemble review of EV chargers online is non-existence. I read a few hobbyist own take part some years ago whilst they commented to an EV charger thread.
So far, a few looks promising
- EVNEX – NZ made and owned.
- Sevr – Solid cost-effective option with minimal “smart”.
- Ocular – looks good and seems to be popular.
Solar integration
My take is that there are two key items:
- CT clamp – taps into the wiring so that solar charging is enabled (oppose to charge from grid only).
- OCPP – protocol to determine solar energy generated and the ability to charge on solar only, subject to minimal threshold on input from the solar system (e.g. 1.xkws).
Installation
All sparkies, in theory can instal it. Do you go with a vendor installation option or BYO sparky? I see the benefit of a supplied and installed option is the ease on warranty claim. I have no idea how durable EV chargers are (not so much the hardware, but software can take the entire charger down – at one stage, a software update fried an EV charger).
Concern with some random sparky is cabling and able to beautifully hide the wire instead of running conduit to the sun and back.
Would appreciate some input based on the following criteria
Charger
- Safety– any bad ones to avoid, or good ones to prioritise?
- Ability to have solar integration – CT clamp is an absolute requirement, OCPP is a good to have.
- Warranty – might be too new of an industry for comments based on long term experience.
Electrician
- BYO or vendor installation?
You've got that all screwed up.
What? EV charger, do you have a home?