Advice on home mining

[philipma1957]

Hi, I would like to ask few things about asic miners. I want to build small photovoltaic power plant, around 10 kW output and feed with that energy an asic miner. But I would like to shut down miner for night (so I dont have to invest into batteries for night operation + more fve panels to charge them through day + bigger/more expensive converter). Is that even possible? Can be asic miner regularly shot down, lets say at 6:00 p.m. and turned on at 8:00 a.m. automatically? Or it need to be set up (pool adress, wallet etc.) everytime after its turned off?
Thanks for advices and replies in advance.

Search the forum. People ask the same thing all the time.

Solar panels/batteries + ASIC mining don’t mix together.

The bottleneck is your battery pack. Their lifecycle isn’t enough to sustain your miners. Miners are way too power hungry.

Even if you find a way to constantly feed the batteries with solar energy (i mean if the sun was up all day and night), it still wouldn’t work.

Your batteries will die quickly and you’ll have to replace them. Then instead of making any money, you’ll be spending from your own pocket to replace your batteries.

Tldr; sell whatever electricity you produce to the grid. You’ll make more money.

If he gets a good grid package he can mine when mining pays more then the power company pays him.

Right now in New Jersey if you have a roof of solar on your home you may have 10kwatt to 20kwatt set up

that will produce on average 50 to 100 kwatts in a day.

the best miner for btc is the s21xp it does 270 hash so at 5.76 cents a th it makes $15.55 a day

it burns 88 kwatts which would be all of your 20kwatt large roof setup. that makes 100kwatts a day.  It would pay to mine right now say 88 of the 100 go to the miner and 12 go for a 1 to 1 credit.   you would spend $14.60  of the 100 x 16.60 cents a kwatt  = $16.60 credit on the miner

and get 2 dollar of your bill with the left over credit. So you would net about 15.55 + 2 = 17.55 vs 16.60 and of course you would get tons of free heat.  which really is free. about 7 a day in heat.  All of the math disregards the 7600 usd you paid for the miner.

So for the next hundred days you make 7+ 1 = 8 bucks x 100 = 800 bucks.  plus you paid 7600 for the miner.  it will take years to pay all of it off but you spent zero on batteries so the power system is cheaper.

or just use the 100kwatts a day to reduce the power bill you have. and do not buy a miner  = much less work.

[Peteri2]

Thanks for replies. My idea is to buy miner with consumption somewhere in range 3-3,5 kW/h and feed it from 10 kW FV installation (I guess that tripled or almost tripled installed power output of panels should produce enough power for 3,5 kW/h miner). No batteries, so miner will operate lets say from 8:00 to 18:00. It will be off grid installation. Purchase prices for electricity from FV are so ridiculous here that it doesnt giving much sense to sell it back to the grid operator and on top of it, any on-grid installation have to be legal = you need official project, licenced company to build it and regular revisions, all of which further increasing costs.
I have two possible locations, first is quite sunny garden in southern Slovakia and second is my cottage, thats a bit more mountaineous area, but on the other hand, much better prepared (optical internet, electricity etc.). I dont need FV for anything else, just for miner, so all its capacity will serve to miner. For winter I might to pack miner and send it to datahousing somewhere in US (current prices are 0,08 usd/kWh).
At least thats my wet dreams lol, I wonder how they will crash with reality.

[mindrust]

No batteries? Are you sure? I don’t think it will ever work. Batteries stabilize the current, they provide you a stable electricity. Without the batteries you’ll have a unstable current that have many small cuts, voltage drops and spikes etc, you’ll fry your miners. At best, they’ll never work. Even on a fully sunny day your solar panels won’t produce a regulated stable electricity for your miners. If that kind of setup was possible, everyone would do it and nobody would use batteries.

Your project is dead on arrival.

Sell it to the grid, thank me later. I saved you from losing a couple thousand.

I have never seen a non-battery setup, if you can make one, prove me wrong and I’d learn something new gladly.

[philipma1957]

getting an inverter to be that stable is hard.

We played around with this and L3+ units back in the day.

The inverter could not stabilize and run the pus correctly.

we went string of pineal to 120 volt inverter to  apw3++ psu.

Also you can't run 8am to 6pm

more like 9am to 4pm

even more like 10 am to 3pm.

early sun and late sun are not very good. especially missing the battery.

you could stabilize the setup with a decent battery

panels >>> charger>>> battery >>> inverter >>>> psu

but do not use a 3500 watt miner.

do this one

https://altairtech.io/product/bitchimney/ set it to low 40 th and run it for 6 hours a day say 9:30 am to 3:30 pm

the battery needs to be lithium ,

and it acts more like a big ass capacitor than a battery as you almost never take 20% against it.

and personally you will likely lose money because battery and off grid do not work for this. Even with a lower power miner and only running 25% of the day.

[Peteri2]

I thought that installed power output of panels 3x bigger than max consumption of miner should produced enough energy for inverter to keep stabilized 230V, 50 Hz sinus under that load, even in not super sunny days. Ok I will try to consult this with some company who builds FV installations and possibly connect it to the grid to balance those irregularities, despite I wanted to avoid it.
Anyway, thanks for advices, you might saved me a lot of troubles.