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Thread: Off grid 3 phase solar power
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20th October 2017, 11:51 AM #31.
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Here's an interesting example of what is called a stand alone or mini-grid solar setup.
In WA the power network is spread so thin that the costs of poles and wires, and power outages has gone through the roof in the more remote rural areas.
In some areas there has been little to nothing spent on pole and wire maintenance so many are up for renewal
Here's an example of the PRIMARY electrical energy provider in the state (Western Power) installing a complete solar mini grid system (backed up by diesel generator) to 6 farms in the Hometown region of WA.
https://westernpower.com.au/energy-s...-system-trial/
The trial has been going for one year and has been deemed an outstanding success with some 65 hours of power outages avoided.
Famers have not had to change any practices or electrical machinery on their farms.
Diesel was needed for 8% of the power.
The power was of a MUCH better quality.
The farmers pay nothing up front and the same energy rate as regular grid power.
The energy provider maintains the system (mostly remotely) and says it is cheaper to install and maintain these mini grid systems than funding the massive pole and wire replacement.
They will be installing many of more of these in the next few years.
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20th October 2017 11:51 AM # ADSGoogle Adsense Advertisement
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20th October 2017, 12:42 PM #32SENIOR MEMBER
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A significant factor for WA is line transmission losses, given the remote nature of WA and the respective location of power plants its not surprising that mini grid systems are deployed.
Had a chat to a mate who has a three phase diesel generator on his acerage, and it does seem quite economical. The generator costed him $16k to install and he runs it 6-8 hours per day and costs him around $200 per week in fuel. Which given the price of solar/battery storage at the moment it will take quite a few years before the cost of fuel/maintenance of running a diesel generator exceeds the cost of solar system.
Alternatively if you've got space install your own "mini-grid" and get the best of both worlds.
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20th October 2017, 12:52 PM #33
Without access to the compliance plate for your fridge, I'd guess that when running your fridge would draw around 8-10 Amps, with a starting current probably 2-3 times that. The voltage drop over a standard domestic 50m extension cord is not pretty. My first guess is that the extension lead was too light for the run and current draw.
Although I am surprised that a "big" Honda generator was feeding through a single extension lead.regards from Alberta, Canada
ian
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20th October 2017, 01:02 PM #34
A modern fridge uses about 100 to 300w. I have a big Samsung fridge freezer 300+ ltr and it happily runs off a 900 w pure sinewave genny.
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20th October 2017, 01:02 PM #35GOLD MEMBER
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In my case the generator was next to the fridge, it was rated at 10A the same as a power point but it wouldn't start the fridge.
To start the fridge we would rev the genny to full speed and close the switch. It would run untill the fridge stopped and then some one would switch off the generator. Some time later, I can't remember how long, the proceedure was repeated. A real PITA but it kept the fridge cold for many hours.
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20th October 2017, 02:48 PM #36
Paul,
1, 2 & 3
Neighbour got 3 phase and it cost him 30k to get it to my property is another 400 or 500m
DaveTTC
The Turning Cowboy
Turning Wood Into Art
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22nd October 2017, 02:09 PM #37
Personally I would focus my efforts on moving away from 3 phase all together if I was you. Is there any reason you need so much power? Start using hand tools more, get a treadle lathe maybe
Save a fortune! You'll be happier and healthier in the long run as well.
When the world goes to s**t (which may now be sooner than we thought) it's the guys with hand tools that will come out on top in the long run. A generator will be worthless by then when all the fuel runs out and the fish n chip shops close.
Stock up on hand tools and guns I say. They will be the most useful tools you will need.
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22nd October 2017, 02:15 PM #38.
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22nd October 2017, 02:36 PM #39
Until the battery needs changing or some other part needs maintenance then those solar panels will be like big flags alerting all those around that you may have a lithium battery stashed in your backyard that they all need to survive. Lol, I'm just joking around, but still, it's well worth stocking up on hand tools or any other item that you can't make yourself and requires no maintenance or reliance on mining. The lithium mines will be closed by then, or we will have sold it all off to China and can no longer control the mines in our own country. Tesla will have the left overs from them, that's if an EMP hasn't wiped out the USA by then!
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22nd October 2017, 02:54 PM #40
I have a treadle lathe and pole lathe [emoji6]
DaveTTC
The Turning Cowboy
Turning Wood Into Art
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22nd October 2017, 03:21 PM #41GOLD MEMBER
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22nd October 2017, 03:26 PM #42
You'll be all set then. I'll walk to Horsham if I need some turning done, that's if the roads aren't covered in mobs of zombies.
That reminds me I need to contact Brendan Stemp and find out when he's getting more glue in stock.......(because he's from Horsham, not because he reminds me of a zombie, just to clear that up)
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22nd October 2017, 03:40 PM #43
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22nd October 2017, 09:08 PM #44
What glue is that?
DaveTTC
The Turning Cowboy
Turning Wood Into Art
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22nd October 2017, 10:38 PM #45GOLD MEMBER
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Going by the text, the glue that he's sniffing!!!!!!
KrynTo grow old is mandatory, growing up is optional.
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