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Thread: SB's Block in Tasmania Build
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4th July 2017, 10:43 PM #91
I would eventually like to have an off grid solar system and 3 phase would be nice, but in the meantime I have a 7.5hp 3ph metal lathe running on a VFD at 240v. I generally only see 4-6 Amps consumption. I have an amp meter on the VFD control box to monitor it.
Dean
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5th July 2017, 12:12 AM #92
I can see a day when ordinary people will have suplimenary battery packs under the house that will provide a pretty good chunk of daily power first, rather than drawing it from a grid.
In January, the guy that installed my aircon said that just three or four panels on the roof would run it full-bore on hot days outright. Add a few batteries and it will do winters too.
Makes one think.
Enjoying your thread SB.
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5th July 2017, 01:05 AM #93GOLD MEMBER
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That's a combination of AC being more power consumption efficient and PV cells getting better. I think it will be mandatory to put them on every new house like water tanks are now. During this exercise of putting on solar power everyone I speak to says the price of batteries is going to fall in the next year or so.
CHRIS
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5th July 2017, 02:03 PM #94SENIOR MEMBER
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Dean, to boost to three phase I would need 3 x 7.5kw inverters in sync and probably a bigger bank of batteries. At Mt Stirling a stand alone three phase system has been installed (3x 7.5kw inverters and a 120volt battery bank and a large water turbine with 80 mt of head).
My power supply comes from a micro hydro turbine and solar panels and a 10 kva generator for emergencies, ie; charging batteries when there is no sun or water due to a combination of drought and bushfires(lot's of smoke).
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5th July 2017, 02:08 PM #95GOLD MEMBER
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Or just get a VFD.
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5th July 2017, 07:12 PM #96
This thread has gone seriously off-topic, I am sure SB would appreciate it if it could somehow get back to his build and his off grid system.
Off topic posts hav been moved here, as they all were basically on that subject
https://www.woodworkforums.com/f117/k...choices-215224
Further off topic posts will be deleted.
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5th July 2017, 10:49 PM #97
Yes HOUN, they are 2volt connected to make 48volt as 48volt is the way to go. The guys are coming back to cover the vents as they left them back at their store.
Chris, I don't have a link for the batteries, they were supplied by my installer and I can only tell you what they have written on them. You could contact DMS the installer in Tasmania and they might send you a specification sheet for you as they are very helpful. Yes, my system has historical data retention in the Victron colour screen readout and in the MPPT chargers that make up the total system, you can also have an internet module installed to send you data to your phone or computer but it is extra so I did not have it. I plan to monitor the system manually rather than become a power geek that checks it every other minute as I don't want power use to rule my life like some I know on the net. You could have the screen in your house as it takes a cat5 cable.
SB
ps, I have no interests in DMS or Victron of any kind.Power corrupts, absolute power means we can run a hell of alot of power tools
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6th July 2017, 12:29 AM #98GOLD MEMBER
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I can't find a battery rated in WH thus my question, they are all rated in AH. I am putting the monitoring in to assess what size batteries we are going to need and if changes are made in the house such as appliances etc we can see what effect the changes had. I don't think the monitoring even needs reading, it just happens and it can be read at any time in the future.
CHRIS
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6th July 2017, 12:51 AM #99GOLD MEMBER
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7th July 2017, 02:42 PM #100
Thanks big shed fo getting the thread back on track.
I'm about to start on the wet areas, that is the bathrooms that are upstairs. The main thing here is that under the building code, Tasmania permits anyone to waterproof wet areas and no registered installers are required. I have two bathrooms and one toilet to do. The building code says bathrooms and toilets that are above the ground floor must be waterproofed. As I'm putting in pre-moulded shower bases I will require two council inspections. The first is for sealing the floor area and the second is for after I have put in the shower and connected up and sealed all floor services. My wife and I have just finished putting in the cement sheeting for the floor and walls as you can see in the photos. The first photo shows the shower area without the bases and walls waiting for joint sealant etc.
SBPower corrupts, absolute power means we can run a hell of alot of power tools
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7th July 2017, 04:22 PM #101
Hi SB
are you going to run your waste pipes through the floor before or after you do the water proofing?regards from Alberta, Canada
ian
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7th July 2017, 07:01 PM #102GOLD MEMBER
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7th July 2017, 09:31 PM #103
I will be running the plumbing and sealing it up after the first council inspection. The reason is that the shower base has to be installed in the bathroom corner after the council is happy with the waterproofing that it sits on, then I can do all the plumbing which is just sitting under the floor waiting. Then it's reinspected by council. After all this I can do the floor and wall tiles and install the draw units and sinks.
SBPower corrupts, absolute power means we can run a hell of alot of power tools
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7th July 2017, 11:10 PM #104
Sure is a lot of government oversight and permission-giving for something you supposedly "own".
There is quite a lot of talk about batteries in the news today SB, you're leading the pack!
Watching the thread sure does show the amount of work in all these various jobs.
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7th July 2017, 11:20 PM #105
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