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https://www.dropbox.com/s/qdvrwk1x7x5phse/140627_185044.pngUnfortunately I'm on a road trip, but I edited the photo. I was thinking of using one battery on a charge controller like this in 12v mode http://m.ebay.com/itm/351004581852?nav=SEARCH another possibility is you could use the charge controller in 24v mode and then force it into 12v with yet another converter. That converter will however make the 12v output more steady than the direct 12v through the charge controller and battery which might be better for the miner.
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Here the issue is "when the battery will drain off and when that turns off":
We need a stopping point to switch to psu power before the battery drains very low and the devices get low power and malfunction, right?
Further that's bad to the battery too. How we will achieve that?
I think we will require some kind of a circuit to sense that low voltage or power point(like inverters/ups shut-off) and cut-off the supply from solar.
Then it the repay will have no power flow on one channel and it switches to the other one, to psu output.
Then in the morning when Solar provides enough power the relay switches off psu and lie in solar.
And the battery will be just used during night if PSU input Supply fails.
Regarding soldering battery wires to PCI-E connectors are also a problem. What you think about that?
The charge controller between the battery and solar panel will stop the battery when it goes below 11.5 and the relay will switch to the computer power supply. |
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Check the antminers for their input requirements. If they take 12VDC +/- 2 VDC, then scrap the DC>AC>DC arrangement and hook them straight up to a battery. I do this with my Jally.
Solar panel (200W) + wind turbine (200W) > hybrid combiner/controller > batt (nominal 12VDC) > Jally + R-box
Input the same as above > batt (nominal 12VDC) > UPS (400W) > Laptop (signals startup & shut down based on battery condition)
Yes Cranky4u. That's what I was thinking too, but adding a 12v output from a computer power supply. You would connect the computer power and the power from the battery charge controller up to the dpdt relay and it would switch between the pc power supply and solar power depending on if the solar is available or not. Thanks to all. 1. What kind of a Replay you advice here? 2. If the power from solar is low during low Sun will this replay switches to PSU? 3. Also what kind of a cable you are using to connect your devices to battery. Normally inverters use cables of very higher guage to connect to battery, so do I need to use such a kind of cable? It will be more better if you can add an image of what you have done or others done such things. 1. I assume by replay you mean relay, and you would need a 12v dpdt relay, with whatever amperage you need, which is wattage/voltage. So for a antminer you would need something like http://www.ebay.com/itm/2pcs-JQX-30F-2Z-DC-12V-Coil-30A-250V-AC-Power-Relay-8-Pin-DPDT-/300715926685?pt=LH_DefaultDomain_0&hash=item460410e49d2. If the power is low, first the battery will drain off, and when that turns off, then the relay will switch to the PSU's 12v power supply. 3. Definitely use a higher gauge wire between battery and the charge controller. 12v has high amperage. You can solder connectors up to the wire and screw into the battery terminals. Will definitely make a guide if I ever get time to finish this project  |
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Depending on where you live, I would get probably 800 watts of solar panels, the rated wattage are only on the full sun. PVC pipe Wind turbine might be better because its 24/7? Definitely interested if anyone tries this idea Ah!!! How much is your 800Watts panel cost in $? If you make your own panels...probably still a good $400 dollars. After the use on the 12v antminers, you could definitely use the 12v supply onto 750ti's or even a 280x. This could have a good roi over a few years. If you only run on solar, you wouldn't have to install more 12v relays into your breaker box. The 12v relay and wiring is a good $100 or $250 if you get it installed. |
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Check the antminers for their input requirements. If they take 12VDC +/- 2 VDC, then scrap the DC>AC>DC arrangement and hook them straight up to a battery. I do this with my Jally.
Solar panel (200W) + wind turbine (200W) > hybrid combiner/controller > batt (nominal 12VDC) > Jally + R-box
Input the same as above > batt (nominal 12VDC) > UPS (400W) > Laptop (signals startup & shut down based on battery condition)
Yes Cranky4u. That's what I was thinking too, but adding a 12v output from a computer power supply. You would connect the computer power and the power from the battery charge controller up to the dpdt relay and it would switch between the pc power supply and solar power depending on if the solar is available or not. |
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Depending on where you live, I would get probably 800 watts of solar panels, the rated wattage are only on the full sun. PVC pipe Wind turbine might be better because its 24/7? Definitely interested if anyone tries this idea |
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That idea is good but practically need to check the implication problems. Do you know how the voltage will be in b/w terminals when solar is connected to battery? I think it will be varying and the input to Ants will be an issue. What you think of it? Also I was actually looking for how many panels and their W ratings. I believe the charge controller will let it go up to 12.5 and down to 11.5 volts and then shut off. I have ants, and don't quote me on this, but I think the voltage regulators will be okay on the antminers. The antminer chips are running on 1.5 volts I think. You could also use the charge controller in 24v mode and then step it down to 12v with a step down converter and it'll be a more steady 12v. |
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Make sure your PSU is shorted to stay on, and if it beeps, then it has no internet connection. If it doesn't, then you should be able to connect to it through the ip adress is has on your computer.
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How are you connecting your miners and computer? Is your computer on the same network and connected to the internet or directly to the miner?
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You are going to buy from BFL... :S
I was thinking the same thing. 25 ghs isn't all that much. |
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I live in Hopewell NJ and I have a 200 amp breaker box just for my basement that I can use for just mining. Planning to get more antminers  |
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I have two antminers and I make about .01 BTC each with multipool. Bitcoin is usually the most profitable. On the https://www.multipool.us/ homepage they show recent profitability. Also coinwarz.com has a good conparison on profitable coins. The difficulty with ASICs keep moving upward in sha256, but GPUs in Scrypt, or soon to be Scrypt-n have a more steady difficulty with steady payouts |
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I'm paying .10 in NJ, so electricity is cheaper here apparently?  How would we pay you for a miner and how would it be shipped? |
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I suppose it's all relative to your power usage, being only a hobby miner at 15gh/s my power usage is low. I have 4 x 170 watt pv panels and a couple of soladin 600 micro grid tie inverters, that I picked up cheap a while back just to mess about with. So what I do is not directly run my rig off the PV (well the soladins are plugged into the same ring main as the miners so in reality during the day it is) but offset the power usage by what my panels produce thought the day, so it works out atm anyway I'm not paying for any mining electricity usage. Are grid tie inverters even legal in the U.S.?? I was hearing that it was illegal? |
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I setup my miner with a direct ethernet link and it worked fine. Then when I connect it to my router it doesn't come up on my router config page. It doesn't seem to be mining. What could be the problem. I used DCHP for the Lan settings.......
Thanks in advance!
Pool info not set in the correct format. Oh...Thanks Dogie!!! |
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I setup my miner with a direct ethernet link and it worked fine. Then when I connect it to my router it doesn't come up on my router config page. It doesn't seem to be mining. What could be the problem. I used DCHP for the Lan settings.......
Thanks in advance!
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