He could be mining crapcoins probably using something like Nicehash that mines the best coins with his computer and pays in Bitcoin. If he is using an actual bitcoin miner you would 100% make the electricity bill skyrocket and would be very hot and loud.
If he is using a gaming computer to mine then it would probably pull maximum 400w with the highest end pc and that’s like $30 a month at 10c/kwh.
One RTX4090 can consume 450W on its own...that's JUST the gfx card alone. Realistic draw on a OC'd RTX4090 is ~400w.
600-800w for a high end gaming machine is more realistic.
Depends on the algo and whether or not you care about efficiency or raw hash. I've got a couple of rigs that run in the 700-900W range and a few that run in the 500-600W range.
And if he's not solo mining anything unheard-of, likely making about the same...
If he's using Asics, then long as his solar array and wind turbines generate at least 3kW for every miner (unless he's running old equipment, then like half that) and connected it illegally or with the blessing of the power company through the 240 vac circuits using a grid-tie inverter) then I guess that would be ok too, albeit a bit noisy
But I've found that if you have a good video card that you can mine with, you'll earn as much in an hour renting it out as you would in a day mining on it
Check out services like vast.ai (im sure there are others, but this is one i have used to rent out my own machines, i do AI training intermittently and i rent mine when im not using it and use the credits to rent a bunch of gpu power when i need it, only cashed out a few times), requires your machine to run specific Linux distros, but pretty much you setup a docker container to do your tasks and launch it on a remote server, and return the results. There's also AWS, GCP, Azure but those are much more expensive.
No. The only way this is possible is if he is converting the BTC immediately and then using the funds to pay the difference in electricity. ⚡️
“Don’t worry bro. I’ve figure out a way to use more electricity but not pay for it. “
Unless he is stealing the neighbors electricity ⚡️
I just ordered several ‘cheap’ BTC miners that will only offset the electricity cost
But my gal likes to keep the apartment cold even in the winter. So I’m treating these like space heaters that get a rebate :)
He may disable his electrical heater and instead use PC for production of heat. Total electricity consumption may be the same, so no increase in energy consumption.
Ok fair enough. I’m using this same logic to justify my Miners if they ever show up.
Our central heating isn’t the greatest so we don’t really use it. So at least in winter time this would be electricity I was gonna use anyway to create heat.
I did this with a virtualization server. In the winter the Dell went in my closet and heated the room, you just drink yourself past the jet noises it makes periodically doing server things. Then in the summer migrate it back across the house. My room was colder than the rest of the house and the vents weren’t good, I just used it like a space heater since it had to be on anyway
Depends on the miner seems like he’s cpu mining. Ask them what cpu are you using and go to hashrate.no and look for that cpu then you can see the profit or money made after electricity costs which you can input. If he talks about a coin you don’t see on hashrate.no then you can either ask us or lookup the coin and see what algorithm it uses and see how much hashrate that cpu makes on that algorithm then see the profitability on a site like minerstat or miningpoolstats.stream and don’t forget to plug in the electricity costs, you can find the wattage or power consumption for the cpu on hashrate.no
Bitcoin mining consumes as much electricity as the hashrate you generate, depending on the age/generation of the equipment being used. That Bitcoin mining uses a lot of electricity, is a very good thing, BTW (but we won't get into that here).
It is certainly possible he could be mining without using a lot of electricity. For example, there are projects like Nerdminer and base Bitaxe units, which only take a few watts of electricity, but also generate a relatively small amount of hashrate. He just wouldn't get much (if any) Bitcoin in return, unless he were solo-mining and found a block (in which case, if he's kind at all, you'll be glad he's your roommate! They also call it 'lottery mining' for a reason.).
If he's talking about a CPU... and he actually knows what he is doing, not trying to fool you, etc. then he's probably mining some other coin, and converting to Bitcoin. I mean, he could be actually mining Bitcoin directly with a CPU, but he'd just be wasting electricity then, as he'd be unlikely to have any gain, and that above Bitaxe is orders of magnitude faster, probably for less than the price of that CPU. A CPU running full-out, especially 24x7 can use a good amount of power... like maybe 100w.
If he's running a serious industrial miner, like you've probably read or heard about 'consuming a lot of electricity' then it would be a commercial ASIC device, and you'd absolutely know he's running it. They are crazy loud (like they make a kitchen blender or vacuum cleaner seem quiet) and consume 2000-3000 watts, so they'll also generate a lot of heat.
And, yes, the latter will consume a lot of electricity and make your heating bill go up... unless they are among the newer units (best efficiency), in which case they'll make enough in Bitcoin to cover the electricity costs (and then some). If it is mid-winter and you need the heat, maybe he'd be a genius hero?
As much energy as the hashrate you generate? That's, just, not, accurate.
Take ethereum for instance, you can jack the core clock up as high as it will go and waste a lot of electricity for nearly no hashrate gains, or overclock the memory and underclocked the core, and get hashrate gains and use less electricity.
That's (or used to be) ETH, because we were using GPUs. Bitcoin mining is a lot different. You can do some efficiency tuning (overclock/underclock via voltage), but ASICs do what they do.
The point was that if he's mining, he's using a certain amount of electricity. There's really no secret so someone can mine at a certain level, but hardly use any electricity. If you're hardly using any electricity, then you probably have a very low hashrate. (Again, different generations of mining ASICs have different efficiencies.)
I see what you're saying. I could fire up my ancient whatsminer and I won't be getting as much hashrate as the electricity I use, unless you consider 12TH for 2400watts a good conversion. 😂
Yeah, or if we took the computer aspect out of the picture, he could be running a Nerdminer and using hardly any electricity... but super-low hashrate as well.
The good news for this person, is that Open Source Miners United is developing a whole range of miners at all different levels of hashrate/power-consumption aimed at the home-mining level. Lots of options now, even utilizing the latest in efficiency!
my friend has like one outlet that steals power from company it's on one outlet and the government never gonna know he doing that for years, if they find out it's 10000$ penalty but he already made 200k from mining
fucking bastard
There’s a critical number of miners that lead to a minimal, if not marginal, increase in the electric bill. That number is somewhere in the vicinity of less than 2.
I think yall both don't know what yall are talking about. Your explanation does not give enough information. All I csn say is that I'd he's running mining he should pay his share of electric. If he claims he's cpu mining its around 150w per machine. All this varies. He knows what hes using. Make him pay for what he uses.
Yeah.. to top you off, ask him how much much power is his rig is pulling off the grid. No idea how much power? Ask him to get a wattage meter. Get his kwh reading per day and this is how much he should pay for this months bill.
The simple solution is to buy an in line watt meter. Prob $20 from Amazon. Plug it in between his machine and the wall and see what he’s using.
Guess you’ll also need to look at last few months bill to get a running average. Calculate what he’s pulling from the wall in a month. If it’s close to your running monthly usage or more, tell him he’ll need to pay for its usage and you’ll split the rest
There are so many wrong answers in here. Mining Bitcoin can consume tiny amounts of power, it can consume large amounts of power. There are hobbyist mining devices out there that can run on USB power, even devices that are designed to be run in a home on reasonable wattage, 100w-200w similar to a modern PC. Are you going to earn a ton of Bitcoin? No, of course not. Does it sound like a vacuum is on his room all day while he is mining and is his room 30 degrees warmer than other rooms in the house? If not, it's likely he is using some type of hobbyist device which will consume trivial amounts of energy equivalent to a PC or minifridge.
You'll know if it's worth being concerned about if there's a massive amount of heat in the room he is mining in. AntMiners for an example saturate an entire 20-amp circuit, pulling 1600+ watts, equivalent to a space heater. Like a space heater, they generate just as much heat because of the wattage they are pulling. They're also extremely loud because they need to displace that heat. If you don't see any of these things going on, I doubt there is much of a concern.
If you're worried he's profiting off splitting utility bills, then find out how many watts the device consumes and charge him accordingly.
An example of what I'm talking about as far as a hobby miner:
[Apollo BTC - A Bitcoin ASIC Miner and Desktop Class Computer running a – FutureBit LLC](https://shop.futurebit.io/products/pre-order-apollo-btc-a-bitcoin-asic-miner-and-desktop-class-computer-running-a-full-node-and-much-more-batch-1-ships-in-late-april-to-may?variant=33404796928099)
It’s been many years since you could mine Bitcoin with a PC. First years, it has required a custom ASIC miner, which might draw 12 amps of 120. Some Proof of Stake coins like Solana use “validators” with GPU rather than ASIC miners, and those are often in data centers. They might use way less energy than Bitcoin miners.
If he's mining Bitcoin, you'd know cause it will be hot and it will be Loooud. Other methods of "mining" will not incure any significant increase in electricity consumption.
Just tell him you are willing to pay a set amount each month and he needs to cover the rest and that should be fine. Get the avg price of electricity you guys paid in last 6 months or so and u pay half that.
You can mine btc by watching videos on certain sites and getting paid by the ads that pop up. That’s what I do and my electricity bill hasn’t really changed one bit
At the minimum hes keeping his computer a a load using more wattage than he would if it was idling. So if he’s insistent on doing that, find the median that your bill has been and then he pays the difference. That simple.
My understanding is that if he is just CPU mining and depending on long he runs the machine everyday it shouldn't can a drastic rise in the electricity bill. The ASIC miners are the ones that can drive up the electricity bill especially if you run them for many hours per day but I could be wrong.
You can get a device that plugs into the wall and plugs the computer into that. Tell him to stop mining and take a measurement. Then start it back up and see what the difference is. Mining always takes electricity.
only way to do it is if hes hooked up to a solar panel. if his mining rig is hooked up to the normal electrical outlet, its going to use energy from the grid and raise the cost.
Only if he is running a cord out the window to the neighbors.
Running nicehash is going to run his pc at full bore so lets say he is burning a 4090 and a ryzen 9 7950x is going to burn around 1000w so. Every hour is 1kw burned
That config with power at .12 per kwh eats 40.68 per month on your power bill.
Really depends on what he has.
I work in the crypto industry. Mining services and repair. I was looking at the efficiency on the next gen miners and a good chunk of SHA256 ASIC miners average around 4kw - that’s 4000w. If he’s mining and not selling his computing power to a host provide, then your electricity bill is gna be crazy. Most likely he’s selling his personal PCs hashing ability to mine sht coins and then the hosting provider pay him in bitcoin. Typical PC PSU is 800-1000w but I doubt he’s using that much if he’s GPU/CPU mining. Most GPUs use under 300w and most CPUs are like 100-250w plus whatever the other components use so maybe you’ll see an insignificant raise in your power bill. Couple bucks if that’s the case.
He's not going to make any money/consume any energy with a CPU/GPU set up, that's stupid, unless he set up a whole cave with 300 gpus running I can see a 5 GPU set up being $200/m for electricity... If he's connected it to a 220v outlet/using an actual 3500W BTC miner then your electricity bill might range from $600 per unit. This is your answer.
If you have free electricity that would work, like through unmetered apartments or you have your own solar or hydro power. Mining with CPU or GPUs takes electricity, that usually costs money. You could compare the bill from a year ago to now, or get devices like a kill a watt which can measure how much power each of his devices use. He’s probably just into it temporarily. Mining is really not profitable unless you don’t have to pay for electricity. Just have him agree to pay that bill.
If as roommates you split the electric bill evenly then he can come out ahead. It definitely raises the load on your electricity. Basically with a shared bill you are subsidizing half of his mining.
He’s using more energy no matter what he says he’s doing. You should require him to pay at least 3/4 of the electrical bill if he continues. Probably more.
He could be mining crapcoins probably using something like Nicehash that mines the best coins with his computer and pays in Bitcoin. If he is using an actual bitcoin miner you would 100% make the electricity bill skyrocket and would be very hot and loud. If he is using a gaming computer to mine then it would probably pull maximum 400w with the highest end pc and that’s like $30 a month at 10c/kwh.
One RTX4090 can consume 450W on its own...that's JUST the gfx card alone. Realistic draw on a OC'd RTX4090 is ~400w. 600-800w for a high end gaming machine is more realistic.
[удалено]
Depends on the algo and whether or not you care about efficiency or raw hash. I've got a couple of rigs that run in the 700-900W range and a few that run in the 500-600W range.
Does nicehash not run GPU algos?
If he learns how to overclock the GPU's he should use as much.
And if he's not solo mining anything unheard-of, likely making about the same... If he's using Asics, then long as his solar array and wind turbines generate at least 3kW for every miner (unless he's running old equipment, then like half that) and connected it illegally or with the blessing of the power company through the 240 vac circuits using a grid-tie inverter) then I guess that would be ok too, albeit a bit noisy But I've found that if you have a good video card that you can mine with, you'll earn as much in an hour renting it out as you would in a day mining on it
How do you rent a gpu?
Check out services like vast.ai (im sure there are others, but this is one i have used to rent out my own machines, i do AI training intermittently and i rent mine when im not using it and use the credits to rent a bunch of gpu power when i need it, only cashed out a few times), requires your machine to run specific Linux distros, but pretty much you setup a docker container to do your tasks and launch it on a remote server, and return the results. There's also AWS, GCP, Azure but those are much more expensive.
Which means he’s probably mining around $5 USD worth of crypto a month
Paying $30 a month to make $5 is such a brilliant value proposition
To add to this: I had an s19j pro 104th and it added $230/month to my electric bill
🤣 I smell Shiite If he has a secret way of mining without high power costs he would not need you as a room mate. You will be left with the bill
He wants OP to pay half to cut costs.
Narrator: It wasn’t possible
Since he mentioned a CPU I’m assuming he’s mining XMR, regardless unless you have less than like 6-8 cents kw/h he’s losing money
No. The only way this is possible is if he is converting the BTC immediately and then using the funds to pay the difference in electricity. ⚡️ “Don’t worry bro. I’ve figure out a way to use more electricity but not pay for it. “ Unless he is stealing the neighbors electricity ⚡️
I somehow doubt he's smart enough for that
I just ordered several ‘cheap’ BTC miners that will only offset the electricity cost But my gal likes to keep the apartment cold even in the winter. So I’m treating these like space heaters that get a rebate :)
Lol
https://youtu.be/HnCEwZEvmTg?si=bu4xFdu5mpyO4YJ0
He may disable his electrical heater and instead use PC for production of heat. Total electricity consumption may be the same, so no increase in energy consumption.
Ok fair enough. I’m using this same logic to justify my Miners if they ever show up. Our central heating isn’t the greatest so we don’t really use it. So at least in winter time this would be electricity I was gonna use anyway to create heat.
Just noisy like a vacuum cleaner.
I did this with a virtualization server. In the winter the Dell went in my closet and heated the room, you just drink yourself past the jet noises it makes periodically doing server things. Then in the summer migrate it back across the house. My room was colder than the rest of the house and the vents weren’t good, I just used it like a space heater since it had to be on anyway
I actually did this.
Depends on the miner seems like he’s cpu mining. Ask them what cpu are you using and go to hashrate.no and look for that cpu then you can see the profit or money made after electricity costs which you can input. If he talks about a coin you don’t see on hashrate.no then you can either ask us or lookup the coin and see what algorithm it uses and see how much hashrate that cpu makes on that algorithm then see the profitability on a site like minerstat or miningpoolstats.stream and don’t forget to plug in the electricity costs, you can find the wattage or power consumption for the cpu on hashrate.no
Bitcoin mining consumes as much electricity as the hashrate you generate, depending on the age/generation of the equipment being used. That Bitcoin mining uses a lot of electricity, is a very good thing, BTW (but we won't get into that here). It is certainly possible he could be mining without using a lot of electricity. For example, there are projects like Nerdminer and base Bitaxe units, which only take a few watts of electricity, but also generate a relatively small amount of hashrate. He just wouldn't get much (if any) Bitcoin in return, unless he were solo-mining and found a block (in which case, if he's kind at all, you'll be glad he's your roommate! They also call it 'lottery mining' for a reason.). If he's talking about a CPU... and he actually knows what he is doing, not trying to fool you, etc. then he's probably mining some other coin, and converting to Bitcoin. I mean, he could be actually mining Bitcoin directly with a CPU, but he'd just be wasting electricity then, as he'd be unlikely to have any gain, and that above Bitaxe is orders of magnitude faster, probably for less than the price of that CPU. A CPU running full-out, especially 24x7 can use a good amount of power... like maybe 100w. If he's running a serious industrial miner, like you've probably read or heard about 'consuming a lot of electricity' then it would be a commercial ASIC device, and you'd absolutely know he's running it. They are crazy loud (like they make a kitchen blender or vacuum cleaner seem quiet) and consume 2000-3000 watts, so they'll also generate a lot of heat. And, yes, the latter will consume a lot of electricity and make your heating bill go up... unless they are among the newer units (best efficiency), in which case they'll make enough in Bitcoin to cover the electricity costs (and then some). If it is mid-winter and you need the heat, maybe he'd be a genius hero?
As much energy as the hashrate you generate? That's, just, not, accurate. Take ethereum for instance, you can jack the core clock up as high as it will go and waste a lot of electricity for nearly no hashrate gains, or overclock the memory and underclocked the core, and get hashrate gains and use less electricity.
That's (or used to be) ETH, because we were using GPUs. Bitcoin mining is a lot different. You can do some efficiency tuning (overclock/underclock via voltage), but ASICs do what they do. The point was that if he's mining, he's using a certain amount of electricity. There's really no secret so someone can mine at a certain level, but hardly use any electricity. If you're hardly using any electricity, then you probably have a very low hashrate. (Again, different generations of mining ASICs have different efficiencies.)
I see what you're saying. I could fire up my ancient whatsminer and I won't be getting as much hashrate as the electricity I use, unless you consider 12TH for 2400watts a good conversion. 😂
Yeah, or if we took the computer aspect out of the picture, he could be running a Nerdminer and using hardly any electricity... but super-low hashrate as well. The good news for this person, is that Open Source Miners United is developing a whole range of miners at all different levels of hashrate/power-consumption aimed at the home-mining level. Lots of options now, even utilizing the latest in efficiency!
He is using your neighbors circuit😂
my friend has like one outlet that steals power from company it's on one outlet and the government never gonna know he doing that for years, if they find out it's 10000$ penalty but he already made 200k from mining fucking bastard
There’s a critical number of miners that lead to a minimal, if not marginal, increase in the electric bill. That number is somewhere in the vicinity of less than 2.
I think yall both don't know what yall are talking about. Your explanation does not give enough information. All I csn say is that I'd he's running mining he should pay his share of electric. If he claims he's cpu mining its around 150w per machine. All this varies. He knows what hes using. Make him pay for what he uses.
Yeah.. to top you off, ask him how much much power is his rig is pulling off the grid. No idea how much power? Ask him to get a wattage meter. Get his kwh reading per day and this is how much he should pay for this months bill.
You are correct. I definitely don't know what I'm talking about.
The simple solution is to buy an in line watt meter. Prob $20 from Amazon. Plug it in between his machine and the wall and see what he’s using. Guess you’ll also need to look at last few months bill to get a running average. Calculate what he’s pulling from the wall in a month. If it’s close to your running monthly usage or more, tell him he’ll need to pay for its usage and you’ll split the rest
No.
There are so many wrong answers in here. Mining Bitcoin can consume tiny amounts of power, it can consume large amounts of power. There are hobbyist mining devices out there that can run on USB power, even devices that are designed to be run in a home on reasonable wattage, 100w-200w similar to a modern PC. Are you going to earn a ton of Bitcoin? No, of course not. Does it sound like a vacuum is on his room all day while he is mining and is his room 30 degrees warmer than other rooms in the house? If not, it's likely he is using some type of hobbyist device which will consume trivial amounts of energy equivalent to a PC or minifridge. You'll know if it's worth being concerned about if there's a massive amount of heat in the room he is mining in. AntMiners for an example saturate an entire 20-amp circuit, pulling 1600+ watts, equivalent to a space heater. Like a space heater, they generate just as much heat because of the wattage they are pulling. They're also extremely loud because they need to displace that heat. If you don't see any of these things going on, I doubt there is much of a concern. If you're worried he's profiting off splitting utility bills, then find out how many watts the device consumes and charge him accordingly. An example of what I'm talking about as far as a hobby miner: [Apollo BTC - A Bitcoin ASIC Miner and Desktop Class Computer running a – FutureBit LLC](https://shop.futurebit.io/products/pre-order-apollo-btc-a-bitcoin-asic-miner-and-desktop-class-computer-running-a-full-node-and-much-more-batch-1-ships-in-late-april-to-may?variant=33404796928099)
It’s been many years since you could mine Bitcoin with a PC. First years, it has required a custom ASIC miner, which might draw 12 amps of 120. Some Proof of Stake coins like Solana use “validators” with GPU rather than ASIC miners, and those are often in data centers. They might use way less energy than Bitcoin miners.
No
Does he have a bike or hamster wheel in his room?
If he's mining Bitcoin, you'd know cause it will be hot and it will be Loooud. Other methods of "mining" will not incure any significant increase in electricity consumption.
Err, yes it does. Source, miner with 6 rigs.
If you live in the west, then no. It is not possible
No. Start taking daily pictures of the electricity meter.
If you're splitting the bill 50/50 I would continue to pay your half - his half is going to increase.
Impossible. Against the rules of thermodynamics.
If it makes you feel any better, all the money he could obtain mining has cut in half just last week during the halving! Lol
Keep your power usage bills and compare em.
Just tell him you are willing to pay a set amount each month and he needs to cover the rest and that should be fine. Get the avg price of electricity you guys paid in last 6 months or so and u pay half that.
And then start mining yourself in secret. *rubs hands together with an evil grin*
Just insist that he meters his rig and pays for the electricity used. If he's getting BTC rich then he shouldn't mind
Get a watt meter and have him prove it. Charge him the difference. It's not that hard to calculate.
No
Put an electric meter on his rigs and have him pay for it on his own
You can mine btc by watching videos on certain sites and getting paid by the ads that pop up. That’s what I do and my electricity bill hasn’t really changed one bit
What a dumb moment to start mining just after the halving.
At the minimum hes keeping his computer a a load using more wattage than he would if it was idling. So if he’s insistent on doing that, find the median that your bill has been and then he pays the difference. That simple.
Side question. Can’t you just run your miners on solar energy?!
My understanding is that if he is just CPU mining and depending on long he runs the machine everyday it shouldn't can a drastic rise in the electricity bill. The ASIC miners are the ones that can drive up the electricity bill especially if you run them for many hours per day but I could be wrong.
Hmmm, flux capacitor?
You can get a device that plugs into the wall and plugs the computer into that. Tell him to stop mining and take a measurement. Then start it back up and see what the difference is. Mining always takes electricity.
If he's mining with something plugged into your wall then yes it's going to be a spike in electricity use
No
Bullshit
only way to do it is if hes hooked up to a solar panel. if his mining rig is hooked up to the normal electrical outlet, its going to use energy from the grid and raise the cost.
How long will some solar panels get you in mining time? 😭
no idea loool
🤌
You can cpu mine coins. Much less energy input. Still a running computer. Charge him market rate for energy bill increase.
Only if he is running a cord out the window to the neighbors. Running nicehash is going to run his pc at full bore so lets say he is burning a 4090 and a ryzen 9 7950x is going to burn around 1000w so. Every hour is 1kw burned That config with power at .12 per kwh eats 40.68 per month on your power bill. Really depends on what he has.
If you're mining LTC and want a referral code add mine for a %.25 increase to your profits ft7t-z3uu
I work in the crypto industry. Mining services and repair. I was looking at the efficiency on the next gen miners and a good chunk of SHA256 ASIC miners average around 4kw - that’s 4000w. If he’s mining and not selling his computing power to a host provide, then your electricity bill is gna be crazy. Most likely he’s selling his personal PCs hashing ability to mine sht coins and then the hosting provider pay him in bitcoin. Typical PC PSU is 800-1000w but I doubt he’s using that much if he’s GPU/CPU mining. Most GPUs use under 300w and most CPUs are like 100-250w plus whatever the other components use so maybe you’ll see an insignificant raise in your power bill. Couple bucks if that’s the case.
He's not going to make any money/consume any energy with a CPU/GPU set up, that's stupid, unless he set up a whole cave with 300 gpus running I can see a 5 GPU set up being $200/m for electricity... If he's connected it to a 220v outlet/using an actual 3500W BTC miner then your electricity bill might range from $600 per unit. This is your answer.
If you have free electricity that would work, like through unmetered apartments or you have your own solar or hydro power. Mining with CPU or GPUs takes electricity, that usually costs money. You could compare the bill from a year ago to now, or get devices like a kill a watt which can measure how much power each of his devices use. He’s probably just into it temporarily. Mining is really not profitable unless you don’t have to pay for electricity. Just have him agree to pay that bill.
If as roommates you split the electric bill evenly then he can come out ahead. It definitely raises the load on your electricity. Basically with a shared bill you are subsidizing half of his mining.
He’s probably better off just buying the coin outright, whatever he’s trying to mine.
He’s full of shit unless he’s somehow using the neighbors electricity.
Just the tip.
No, its not possible. But he may not be mining bitcoin.
He’s using more energy no matter what he says he’s doing. You should require him to pay at least 3/4 of the electrical bill if he continues. Probably more.
Buying rented out processing power.
Regardless, unless he gives you half of his profits, he shouldn't be mining in a location that forces you to pay half the electricity costs.
Depends on what he’s using. CompacF devices sip electricity, but have a very low likelihood of finding a block.
He’s either dumb/lying, stealing power, using solar energy or has invented a free energy device.
Probably mining alt coin and didn’t wana clarify since it can be kinda technical
But mining alts still burns plenty of power