Search found 3597 matches

by acmotor
Sun, 17 Nov 2019, 20:28
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

Tried a few inverter gensets. Only the Honda EU range with parallel connectors work (safety shielded banana plugs that are just in parallel with 3 pin sockets). Other brands with parallel connectors are likely to work. The more basic (older) inverter gensets don't support AC sync. Mickey Blue and Ge...
by acmotor
Sun, 17 Nov 2019, 15:27
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

Looked at some more Honda EU generator info then tried an EU10 (1kW) genset direct in parallel to house offgrid inverter. It works fine... with the proviso of care with islanding safety and plug gender etc. Sequence used.. connect genset to operating house offgrid inverter first (via an energy meter...
by acmotor
Sun, 17 Nov 2019, 13:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

Interesting...
Honda EU inverter generator will sync with an existing power source if power source is present first.
https://www.youtube.com/watch?v=VxvhU03EuD0
by acmotor
Sun, 17 Nov 2019, 07:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

Thinking about that ..... Inverter genset with no apparent option to sync, or at least maintain sync as there will be two independent frequency sources. Honda and some others have a proprietary 'between gensets' sync system. Might research that. Could take DC direct from HF 3 phase rectifier inside ...
by acmotor
Sat, 16 Nov 2019, 16:12
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

I can go for a 2.5kW GCI with output power limit and DC current limit as you note. A Delta Solivia 2.5 is to hand. spec is 3.1kW max PV in but sofware parameter limited to 2.5kW AC output. 18A input DC current limit. GCI Starts around 100V but would need 150V to develop 2.5kW AC output (eff. around ...
by acmotor
Sat, 16 Nov 2019, 12:07
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

My offgrid system runs a 6kW (18kW surge) low frequency inverter with 3kW and 2.5kW GCIs connected to output (so AC coupled). Also a HAWT that helps, on occasion via a Windy Boy GCI. Battery bank charges by backfeed through inverter as it is also a charger when CGI pushes. Works a treat. Inverter an...
by acmotor
Fri, 15 Nov 2019, 22:49
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

Re: feeding DC into a PV grid connect inverter

good.

What sort of DC voltages did you use ?

I expect running to DC input current limit is one way of controlling things.
by acmotor
Fri, 15 Nov 2019, 15:32
Forum: Renewable Energy and Storage (Non-EV)
Topic: feeding DC into a PV grid connect inverter
Replies: 12
Views: 381

feeding DC into a PV grid connect inverter

Does anyone have experience with feeding DC (not from PVs) directly into a PV grid connect inverter ? e.g. DC from a power source (generator, power supply, battery) within the rated DC input voltage range of the GCI and current limited (or not) to GCI current rating. I see that some MPPT trackers ex...
by acmotor
Tue, 18 Jun 2019, 00:39
Forum: Renewable Energy and Storage (Non-EV)
Topic: Small wind turbines
Replies: 5
Views: 495

Re: Small wind turbines

Spend a little time considering the hard facts of wind and power using a calculator like.. https://rechneronline.de/wind-power/ On a seriously windy day with average 30km/h wind for much of the day (gusts to 50km/h) my '1kw' 2.4m dia WT can produce 10kWh. It might do this 30 days a year. Remember wi...
by acmotor
Thu, 07 Mar 2019, 08:55
Forum: Other
Topic: Expressions of Interest - Electric buses for sale!
Replies: 21
Views: 3317

Re: Expressions of Interest - Electric buses for sale!

Chris, the range of 200 to 300km you metioned in an earlier post..... wasn't the touring coach the bus that set the record of 1018km travelled on one charge ? A Guinness record at the time ?
by acmotor
Mon, 12 Nov 2018, 13:32
Forum: Mitsubishi
Topic: Imiev repair - precharge resistor
Replies: 28
Views: 3025

Re: Imiev repair - precharge resistor

FWIW my guess would be min 300ohm max 2000ohm and rated at a few hundred W down to maybe 50W. Duty cycle would have been ECU controlled but there is potential for it to burn out if there was a control issue. It may be possible to operate the fast charge chademo contactor directly via 12V on D25 and ...
by acmotor
Wed, 10 Oct 2018, 07:13
Forum: Other
Topic: Expressions of Interest - Electric buses for sale!
Replies: 21
Views: 3317

Re: Expressions of Interest - Electric buses for sale!

Just considering the worst case scenario here. Most vehicles can end up with a special licence in Australia if they were able to be licensed in other countries. The process may cost many thousands of dollars to work through. It may be though that the special licence will exclude them from public use...
by acmotor
Wed, 06 Dec 2017, 16:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: Anyone in Rockingham area WA can check out a solar grid connect inverter ?
Replies: 1
Views: 1090

Anyone in Rockingham area WA can check out a solar grid connect inverter ?

I just had a call from a chap in Rockingham who has a PV system and Growatt inverter out of 5 year warranty. He has a fault and needs the system checked out. Paying job. I spoke to him on phone and he realises the inverter may be faulty and require replacement. Rockingham is out of my area. Usual st...
by acmotor
Sat, 21 Oct 2017, 09:47
Forum: The Lounge
Topic: Wind Turbine vertical axis
Replies: 11
Views: 2671

Re: Wind Turbine vertical axis

" On the other topic in my first post, I recorded some data from the friend's system and clearly established that the LG CHEM 12.8kWh lithium battery is only working at half capacity. I supplied the data to the battery supplier and LG has agreed to replace the whole 12 month old battery. I will rep...
by acmotor
Mon, 11 Sep 2017, 14:09
Forum: The Lounge
Topic: Wind Turbine vertical axis
Replies: 11
Views: 2671

Re: Wind Turbine vertical axis

Close to true.
Rottnest Island, Albany, Geraldton, Badgingarra etc etc are places you don't want to live ! ;) I get the point though.

Bucketing rain and dark sky here ATM.
PVs at 4% capacity, WT at 31% so lets call it bad weather power.
by acmotor
Sun, 10 Sep 2017, 19:14
Forum: The Lounge
Topic: Wind Turbine vertical axis
Replies: 11
Views: 2671

Re: Wind Turbine vertical axis

Thanks for the comments guys. I don't see any positive feedback on VAWTs on the net. I would say that my '1kW' 400RPM 3 blade 2.4m dia HAWT atop a hill in the country can deliver no useable power for 3 weeks and then an average 800W for a week 24/7 with peaks of 1.2kW when braking cuts in. So in a g...
by acmotor
Fri, 18 Aug 2017, 21:13
Forum: The Lounge
Topic: Wind Turbine vertical axis
Replies: 11
Views: 2671

Wind Turbine vertical axis

I have been asked by a local to check his off grid power system as it is not performing as expected. He has 6kW of ground mounted 265W mono PVs in two stings around 500V MPV connected to an SMA 4.6kW GCI to house main and a 12.8kW 48V LG CHEM resu (6.4 + 3.2 + 3.2 expansion battery) Lithium battery ...
by acmotor
Wed, 16 Aug 2017, 17:40
Forum: Mitsubishi
Topic: Airbag recall
Replies: 14
Views: 2476

Re: Airbag recall

So has anyone had their passenger side airbag replaced under the recall ? What was the experience ?
Does any service centre in WA have replacement airbags in stock ?
by acmotor
Thu, 27 Jul 2017, 20:56
Forum: Mitsubishi
Topic: Airbag recall
Replies: 14
Views: 2476

Airbag recall

From Mitsi web site
Takata airbags passenger side only.

iMiEV GA/GB Build Dates Feb 2010 to Dec 2012
VIN JMFLDHA1WAU001714 to JMFLDHA1WAU002896
VIN JMFLDHA3WAU003201 to JMFLDHA3WAC000349

That is mine included. There is the key switch to disable but then chances are ....
by acmotor
Tue, 18 Jul 2017, 17:29
Forum: Mitsubishi
Topic: I-MiEV Main battery cell failure
Replies: 60
Views: 8708

I-MiEV Main battery cell failure

+1 with Jonny's reasoning. You don't get all cells to 4.105V at full charge by chance. They are balanced every time from when the first cell reaches 4.105V. (at least if not sooner) Remember it is winter and the pack will have lower capacity by temperature. My feeling is that after any cell goes bel...
by acmotor
Tue, 16 May 2017, 00:59
Forum: Mitsubishi
Topic: iMiev Recall notice
Replies: 30
Views: 4272

iMiev Recall notice

A similar issue which I wish they'd fix is that if you're on an incline, the iMiEV will roll when not in Ready. I've been parked in a driveway which slopes down to the road, listening to the radio. Then thinking the iMiEV is on (or ignition not activating "ready"), dropped the handbrake and thought...
by acmotor
Mon, 13 Mar 2017, 07:32
Forum: Mitsubishi
Topic: I-MiEV Charge stopped before completion
Replies: 10
Views: 1887

I-MiEV Charge stopped before completion

OK, perhaps getting to the issue then... More thoughts.. Always day time ? November and maybe March/April is similar condition ? Grid connect solar causes ripple on the 240V mains. This is likely to be at 3% or is it 5% max distortion of the pure sine wave. Ripple frequency depends on your and neigh...
by acmotor
Sat, 11 Mar 2017, 16:59
Forum: Mitsubishi
Topic: I-MiEV Charge stopped before completion
Replies: 10
Views: 1887

I-MiEV Charge stopped before completion

philipowen, Thoughts.... The 'November each year at Darlington' has to be a big clue. Power quality, temperature, time of day, switching loads at your house or neighbourhood. Western power transformer tap switching as season changes. Do you ( or neighbours ) have grid connect solar panels ? What tim...
by acmotor
Tue, 24 Jan 2017, 22:55
Forum: Mitsubishi
Topic: Tyres??
Replies: 33
Views: 6530

Tyres??

bindi wrote: I got this as a quote - this sounds good doesn't it?

Front Continental eco 3 155/60 15 $125 each
Rear Continental eco 3 C175/55 15 $150
Wheel alignment - if I need it $55


Those are the tyres I run.
Very happy with them.
Price sounds fine.
by acmotor
Tue, 03 Jan 2017, 22:31
Forum: Mitsubishi
Topic: Cost of Servicing iMiEV 2012
Replies: 34
Views: 4108

Cost of Servicing iMiEV 2012

I do a discharge test every day Image