Needs Pictures: 0
Results 46 to 56 of 56
Thread: Off grid 3 phase solar power
-
30th October 2017, 10:52 AM #46GOLD MEMBER
- Join Date
- Oct 2004
- Location
- Melbourne, Australia.
- Posts
- 1,271
This is a fair indication of what is more than reasonably possible right now.
I too, think you need to organise what your priorities are as far as power usage. It is possible to do what you wish to do right now, but I fear you would never be unable to afford it. By paring back to a more realistic version of what you wish to do, it more than likely will be achievable by yourself.
This is a media release from today.
http://redflow.com/wp-content/upload...1710_FINAL.pdf
Mick.
-
30th October 2017 10:52 AM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Posts
- Many
-
30th October 2017, 11:43 AM #47
I always find it interesting that they will spruik the benefits of the system, and say how comparable the cost is.....without ever telling us what the cost is (maybe they think they can talk us into it when it's a one on one conversation).
So, we know that they said the cost of grid power was "tens of thousands per km", and that it was a distance of 2.7km. Given that $20,000 is "tens" (plural) of thousands, I suppose that we can assume their minimum cost for grid power was around $60,000. They said that there was not much between them, without saying the solar system was "a little cheaper" so I think we can also assume that the solar system was a little more expensive, and probably by a margin of $5-10k.
Perhaps the all-up cost was around $70,000 then? The 72 x 260 watt panels plus 2x inverters would probably be around $25-30k, which leaves around $40k for the 6x 10kW batteries. However, we know that Zcells don't price compete with Lithium batteries like Tesla Powerwall (at around $10k for 13kW) so I'm thinking their system must have cost around $100k (which is still "tens of thousands per km").
-
30th October 2017, 12:38 PM #48
The bit I found interesting was the opening quote “Costwise, the difference between running mains power to the site of the new house site and setting up the solar-powered energy storage system was negligible" which could be interpreted as "in terms of the overall cost (house + power + landscaping + fencing + access road) the additional cost of solar power was negligible"
"negligible" in the context of a $800,000 project is possibly as much as $50,000regards from Alberta, Canada
ian
-
30th October 2017, 01:20 PM #49GOLD MEMBER
- Join Date
- Jun 2005
- Location
- Helensburgh
- Posts
- 7,696
We are in the process of completing the final part of our new system which is 28 x 295kw panels running through a Fronius 3 phase 7.5kw inverter. They were installing the communications to enable data logging today but the electrician who has never done a system with DA cannot get it to talk to the house network so I will get my son to have a crack at it hopefully this arvo.
We actually fired it up a few days ago and it was producing nearly 7.5 killerwasps in the mid afternoon which I thought was pretty good but mid morning today (cloudless, hot) was peaking at low 5's. At that level it was only just keeping up with the household draw so in the heat of summer it will be line ball when more AC is running. The reason we went with the DA was to assess the viability of batteries and just this preview this morning says batteries are useless to us in summer, let's see what happens in winter and how much is exported during the cold months. This is a fairly substantial domestic installation so I can't see batteries being a solution in a smaller typical one.CHRIS
-
30th October 2017, 02:47 PM #50GOLD MEMBER
- Join Date
- Oct 2004
- Location
- Melbourne, Australia.
- Posts
- 1,271
80 x 250W panels with stand alone mounting for in a paddock, is almost exactly $16,000 AUD at last weeks price, ex Melbourne. These are running at a 17.4% cell efficiency and come with a 10 year replacement warranty on the Photo Voltaic panels along with a 25 year power warranty. Neither of the warranties should be required unless a panel fails in the first couple of months. Panels have been running continuously in the USA for around 45 years at the moment, so that should see most people out.
Inverters are another issue entirely, they do have a lower life expectancy. The mentioned Victron inverters are currently available with a bit of running around for a tad over $10,000 AUD for two units
ZBM2 batteries are, from what I have gleaned, approximately $12,600 AUD each x 6 = $75,600 AUD. That said, the real cost for these units is almost certainly lower than this. With the Thailand factory in the designated duty free manufacturing precinct coming on-line shortly, one assumes a more substantial drop in unit price could be on the cards.
Then there is installation costs and what have you, say another $3,000 to $5,000.
Rough total should be somewhere in the vicinity of $106,600 AUD for hardware with probably another $5,000 for installation plus odds and ends.
Round figure would then be say $110,000.
Assuming they have installed the ZBM2 battery units, they will have a warranted 20MWh throughput in the life of each battery; probably at least another 10-15% of power throughput, but that is just a guess. At that stage the battery can be replaced (unlikely) or refurbished (more likely) costs for a refurbishment are not known by me at this stage, but eventually will be.
Realistically, I would suggest the actual cost would be well north of those figures, knowing what I do from 12V, 24V, 32V and 48V systems I am familiar with, nothing is ever near what back of the envelope figures suggest.
Some food for thought.
Mick.
-
30th October 2017, 03:56 PM #51
Plus maybe another $8-10k for the hot-dipped gal structure to hold the panels.
-
30th October 2017, 04:22 PM #52GOLD MEMBER
- Join Date
- Oct 2004
- Location
- Melbourne, Australia.
- Posts
- 1,271
-
30th October 2017, 04:48 PM #53
-
30th October 2017, 05:32 PM #54
Heh heh, "tens of thousands" is pretty broad....
-
2nd November 2017, 09:58 AM #55
-
2nd November 2017, 12:28 PM #56
Almoat up-to-date with replies. Just the link to go. Appologues for absence over last few days. Been flat out
DaveTTC
The Turning Cowboy
Turning Wood Into Art
Similar Threads
-
Off the grid power
By HUON in forum MY RURAL BLOCKReplies: 31Last Post: 20th June 2018, 09:36 AM -
Grid Connect Solar
By artme in forum NOTHING AT ALL TO DO WITH WOODWORKReplies: 3Last Post: 16th March 2010, 08:56 AM