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by jonescg
Wed, 06 May 2020, 16:34
Forum: Charging Infrastructure
Topic: EV Charging Infrastructure study
Replies: 3
Views: 137

Re: EV Charging Infrastructure study

Hi, I filled it out, but there are a few questions where the context was missing. Range question as above - yeah I do 400 km a week. "Who makes the best chargers?" and you list several kinds of charger, not makes of charger. I chose 3-phase socket cause I like simple and cheap. Option 1 at the end? ...
by jonescg
Wed, 06 May 2020, 11:32
Forum: General EV Discussion
Topic: How to tell a kilowatt hour from a kelvin week henry
Replies: 34
Views: 3785

Re: How to tell a kilowatt hour from a kelvin week henry

On the matter of pronunciation, I recall discussing organic molecules with a lecturer way back in 1999. Benzoyl chloride, according to Max Gunter, was "benz-oh-isle" and not "benz-oil" as I preferred. Good thing us chemists use hieroglyphics by default.
by jonescg
Tue, 05 May 2020, 10:57
Forum: Charging Infrastructure
Topic: How DC chargers work
Replies: 24
Views: 2657

Re: How DC chargers work

We did have data, but it's not being shared any more. Plus, we have a situation where the chargers are being run down to the point of disuse. Recent data wouldn't actually be all that relevant any more. What we do know from Chargefox et al. is that most people do their rapid charging during daylight...
by jonescg
Tue, 05 May 2020, 06:50
Forum: Charging Infrastructure
Topic: How DC chargers work
Replies: 24
Views: 2657

Re: How DC chargers work

All sites have grid power, but the supply is weak. As in the HV transmission lines are also small. You could totally scale it back but I feel 60 kWh would be a practical minimum. Knowing you wouldn't see too many travellers in a week means you risk a bit of an overspend, but it also works the cells ...
by jonescg
Mon, 04 May 2020, 22:00
Forum: Charging Infrastructure
Topic: How DC chargers work
Replies: 24
Views: 2657

Re: How DC chargers work

I found this thread and thought it's as good a place as any to list my musings. We are trying to get DC fast chargers installed in the West Australian wheatbelt where distances are vast, towns are small, and power is weak. A charger might be $35k, but the cost of installation and connection to the g...
by jonescg
Mon, 04 May 2020, 11:57
Forum: Renewable Energy and Storage (Non-EV)
Topic: AVASS cells 2nd lot
Replies: 52
Views: 5565

Re: AVASS cells 2nd lot

I just found an Alibaba supplier of these cells: https://www.alibaba.com/product-detail/Solar-Battery-Lifepo4-battery-400Ah-3_62003627098.html?spm=a2700.galleryofferlist.0.0.48b760c7dMXe93 Might be a good source for more spares. https://www.alibaba.com/product-detail/Solar-Battery-Lifepo4-220Ah-3-2...
by jonescg
Mon, 04 May 2020, 09:00
Forum: Members Machines
Topic: Soyachips’ Electric FZR250
Replies: 95
Views: 8375

Re: Soyachips’ Electric FZR250

Hey Andrew,
I should be able to ship the buslinks and PCB over to you by the end of this week. Looks like a great fit!
If you want to cut the current 30s2p boards down to 26s2p you can do so with a Dremel and a mini cut-off wheel. Shame the controller can't take more volts!
by jonescg
Sun, 03 May 2020, 22:15
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

Called it at 17.2 kWh on the AC side.
If the two lowest cells had a bit more in them it might have pushed out to 18 kWh easy enough. Still, a useful amount of stored energy for a warm night.
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by jonescg
Sun, 03 May 2020, 12:12
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

Some preliminary testing before I start to assemble the battery enclosure. 20200503_113657.jpg I decided to use the 4 kW PIP inverter bga left with me as a means to provide a regular load. It also has a built in charger at about 1.8 kW when plugged into mains. I still don't have a BMS on the battery...
by jonescg
Fri, 01 May 2020, 14:08
Forum: Hyundai
Topic: New Kona Owner: home charging advice sought
Replies: 12
Views: 376

Re: New Kona Owner: home charging advice sought

Especially in rural areas - they run a 480 VAC supply with a common neutral.
I really doubt you will need more than 7 kW though, and with a solar-sourced EVSE it's likely to be more like 2 kW most of the time.
by jonescg
Fri, 01 May 2020, 08:27
Forum: Mitsubishi
Topic: iMiEV charging, J1772 testing
Replies: 42
Views: 824

Re: Any i-MiEV's for sale?

Andy - yes there's a missing connection in the car's wiring between the charge port and the on board charger. I recall Gelco in SA was providing replacement kits.
by jonescg
Fri, 01 May 2020, 08:10
Forum: Hyundai
Topic: New Kona Owner: home charging advice sought
Replies: 12
Views: 376

Re: New Kona Owner: home charging advice sought

The Zappi will optimise for the solar output on one or three phase, but not two (it will optimise half the array, I presume). But 7 kW is heaps. As for the 32 A travel option, this is a sound approach, and many EVSEs like Tesla destination chargers are installed on a 32 A socket for added redundancy...
by jonescg
Thu, 30 Apr 2020, 14:07
Forum: Tesla EVs
Topic: Can’t sign in to browser via Google
Replies: 4
Views: 183

Re: Can’t sign in to browser via Google

Cleared cache? We did have 'remember me' issues earlier this month.
by jonescg
Thu, 30 Apr 2020, 08:36
Forum: Batteries, charging, management and monitoring
Topic: BMS requirements for energy storage.
Replies: 5
Views: 243

Re: BMS requirements for energy storage.

I just emailed you a copy of the standard, AS5139:2019 which your battery will need to comply with. Not all inverters need an input from the bMS, particularly if they are told to run on a lead-acid profile where the absorption voltage is the same as the float voltage. I understand Victron does this.
by jonescg
Wed, 29 Apr 2020, 11:02
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

Mike at Goodwe read the Western Power document, and he's confident it would be OK for an export of 5 kW provided the loads at the same time were on the same phase. Which is interesting, because I'm not sure which loads I should put on which phase...
by jonescg
Mon, 27 Apr 2020, 21:43
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

I don't know if it matters or not, but at least with a battery, you'd be sending a large chunk of the energy to a battery before shunting it out onto the grid. Even better when you have an east-west array which will probably peak at about 4 or 5 kW anyway, well after the panels have warmed up and lo...
by jonescg
Mon, 27 Apr 2020, 20:57
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

Heard back from Goodwe: Hi Chris, Yes. Just purchase a three phases meter named as goodwe GM3000. Then you can use this ES on a three phases house. So that's good. I don't care for the payment of 7 c/kWh, but I don't want to have my hardware limited, especially if I find I need to charge an electric...
by jonescg
Sun, 26 Apr 2020, 07:47
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 279
Views: 31622

Re: Aftermarket iMiEV battery upgrade project

Dunno. It's in Graeme's workshop.
by jonescg
Sat, 25 Apr 2020, 19:15
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 279
Views: 31622

Re: Aftermarket iMiEV battery upgrade project

So potentially twice the range for the same money, and no warranty or surety that it will last another 10 years. But hopefully it will.
by jonescg
Sat, 25 Apr 2020, 09:10
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

Yeah we're making this a formal application with WP. I did call WP and *eventually* they told me that the 2.5 kW phase imbalance was a hard rule. This is fine, but I now have two concerns - one, can the GW5048D-ES inverter be programmed to never export more than 2.5 kW? And two, can a 3-phase EZ-Met...
by jonescg
Sat, 25 Apr 2020, 08:53
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 279
Views: 31622

Re: Aftermarket iMiEV battery upgrade project

Cost will be about $13,000 in battery cells, and maybe $500 in labour.
by jonescg
Fri, 24 Apr 2020, 16:03
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

This diagram is from the GW5048D-ES manual - certainly it only works on single phase. Particularly since the S-BP manual lists the option of a three-phase EZ-Meter...
GW5048DES wiring.JPG
GW5048DES wiring.JPG (109.88 KiB) Viewed 588 times
by jonescg
Fri, 24 Apr 2020, 12:49
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

Presumably the inverter can be told to never export at a rate greater than 2.5 kW then? Considering what will be on at the same time, the EV can be charged at 10 A or 32 A, the dishwasher (10 A) can be run when everything else is off, and the shed (32 A) is likely to never be on when the house loads...
by jonescg
Fri, 24 Apr 2020, 11:53
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7779

Re: jonescg's home battery storage system

OK so I am settled on the GW5048D-ES inverter and a split east-west solar array (one on each MPPT input). The next quandary is the phases. Do I leave the three phase wiring as is and hook the inverter up to one of the phases, but use a 3-phase EZ-meter for pushing out what I use? Should I pay for a ...