Finished Wiring Solar Panels And Mining Cryptocurrency On Solar Power

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I finished wiring up my new solar powered system and ran an altcoin mining rig purely on solar power.

This is part two of the day’s work. In the first half of the day I moved the off grid solar power battery bank over to the solar panels to reduce the length of the wires between the solar panels and the charge controller. This should increase my overall available solar power output.

In this half of the day I finished wiring up the batteries. I have eight Trojan T105 golf cart batteries which are rated at 6 volts DC.

I connected the batteries into pairs in series to give me four 12 volt batteries. Then I connected the pairs in parallel to give me a single 12 volt battery bank rated at 900 AH.

I then connected the power inverter to the battery bank since the wires were already there. The positive lead goes on one end of the battery bank while the negative lead goes onto the opposite side of the battery bank.

Then I removed the Renogy solar charge controller from the off grid tiny house and fastened it to the battery box. I wired this up to two solar panels giving me 400 watts of solar to the Renogy, its top limit. Now I had some power going into the battery bank.

To my very great and happy surprise, I found that I was getting nearly 24 Amps of energy going into the batteries at this time. Inside the tiny house I was only getting 13 Amps max at any given time. This is nearly double the output to the batteries!

The big difference comes from the fact that I was using 60 feet of wire between the solar panels and the charge controller when the battery bank was by the off grid tiny house. Now though I reduced that by 1/10th of the length. This tremendously increases my total solar power entering the batteries.

The next step was to remove the Tristar MPPT solar charge controller from the off grid electronics shop and move it to the tiny house battery bank. I wired this up with four 200 watt solar panels giving me 800 more watts of power going into the battery bank. The Tristar can handle 800 watts at 12 VDC.

Now I was getting some serious power. So I went back inside the tiny house and fired up a cryptocurrency mining rig. I had this fully plugged into the off grid solar power AC outlet inside the tiny house.

I even plugged the monitor into the off grid AC outlet. The modem, mining rig, monitor and also my laptop and monitor were all running at the same time on the solar power output.

And it worked!!! I was pushing about 600 – 700 watts of power into the battery bank now. And this was in late afternoon with indirect sunlight. The batteries were in absorption mode before so the MPPT solar charge controllers were limiting the amount of power entering the batteries as needed. So I think there was more power available but there were occasional clouds and I did not want to put too much of a strain on the battery bank so I did not try to run more power at this time.

But it was very exciting to see the mining rig running fully on off grid solar power.

Now any time the sun is shining I can run a mining rig for free on solar power.

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23 thoughts on “Finished Wiring Solar Panels And Mining Cryptocurrency On Solar Power

  1. how come you didn't wire your panels in series, and you could have used a smaller wire going to the charge controller inside the house. An mppt controller can handle very high DC voltage, but you should keep the batteries close to the controller because of low voltage going to charging batteries.

  2. Of course it can be done but doesn't make much sense to do it. My rigs have to run 24 hours a day at all the watts I can get. At best you will only pull down enough power to charge the batteries then discharge them in a few hours. Having the rigs go on and off during a 24 hour period doesn't return enough to make ends meet. the constant/consistent demand for electricity means that they need to run 24/7/365. Battery power alone won't cut it. It's not all that important to be off grid in the land of cheap electrical power, way cheaper than any solar system that you can build evan at half price. Fun to do maybe but way off course when it comes to being a practical application of disciplines. Also maybe someone can correct me if I'm wrong but I think it would be a better idea to always end your connections to the battery bank with the negative instead of the positive. Less chance that a surge will go through your equipment or fuses.

  3. get some DC disconnects place on pos lead of inverter and one for each charge controller. make connections then turn on. no more sparks. bad for batteries .they make H2 gas when charging. also run the remote monitors inside . glad to see system grow. I did the same but different. My NiFe batteries 12 years old 100 percent. 12V 700Ah 20 cells 2X10. I started with interstate GC2 batteries 6X lasted 3 years.

  4. Don't know why, but I got to thinking what you would need to run 4 mining rigs 24 hours a day, around the clock and still have household power. My closest guess was 34 6 volt batteries. With 8 of those being seperate to provide household power. Yet, I am not sure I am correct in that. My cousin in Montana runs his off grid cabin off a fork lift battery pac, and I think it is 36 volt. Wonder if that would allow you to do 4 mining rigs plus household power? And how many more panels would you need to add to power those batteries/fork lift battery pac?

  5. Just FYI. There is no profit in CPU and GPU mining anymore since BTC has took a dive in FEB and MAR till now. Its best to get involved in Masternode POS Mining to make any profits in Crypto. Cheaper to rent a VPS and setup a Masternode than waste electricity on mining the old way. I have shut down all my miners that used GPU's and went fully into POS mining and Not POW mining.

  6. Hi Troy
    a few sugestions/ideas. Make so that the inverter and charger can sit in side the battery box at winter and help keep it warm. Look into powering your computer from 12volt instead of inverting up and down from 110 volt AC. I have made this on my robot lawnmower. It had an 12volt inverter from a battery to 230Volt AC and the lawnmower power supply making it 24volt DC :-/ that cost about 1 Ampe from the battery. Then I got a $5 China DC to DC step up converter. That is now doing the same job, but just going from 12V up to 24V (actually turned out it was more like 32 Volt) but it only uses 200mA,,, a 5X saving.
    My video tomorrow is called "I want to Run my Data Center of Solar Power – 733" so we are kind of working on the same thing ๐Ÿ™‚

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