
Mining bitcoin with unreliable power.
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Hello ungovernable misfits. TensaiBankai here bringing you another Bitsized bitcoin. Today I am going to be talking a little about mining here in south africa with unreliable power.
South Africa has had a load shedding crisis for almost a decade now. A problem that has been getting worse over time as the state decays. This means that for multiple hours or time-slots during the day we have our power cut for up to 8 hours a day where our power cuts last between 2 to 4 hours at a time.
This has made things somewhat “complicated” when it comes to mining. When I have not been paying attention, the constant power interruptions have been somewhat destructive to my computing components. Losing multiple graphic, cards, motherboards and power supply units, a washing machine.
When I first got my miners I decided to become a little bit more cautious with what I was doing around the home. Not only are these machines quite expensive, our import duties are extremely high. Not to mention the difficulty of acquiring replacement parts locally. Specific attention needs to be put in place to ensure that you get the most out of your machines for as long as possible.
This means that the first thing that happens when a miner is connected here, is that all the plugs get replaced with surge protection plugs. I also ensure that none of the miners are sharing circuits with other electronics or appliances. I have had multiple issues in my office area, that when the power turns back on, circuits end up tripping because of the high current draw as certain things turn on.
Many people would look at this difficulty that I experience doing this, the high electricity costs and ask why would anyone want to mine in these conditions. I will say that I am a bit of a zealot when it comes to bitcoin. I like that I have some KYC Free sats that I earned by exchanging electricity for SATS. I also like that mining, even at a loss, can have certain… tax advantages. Not to mention, that this entire winter, bitcoin kept me warm.
There is also the issue that I see, with so many South Africans going off the grid, our only state owned power provider is really losing many of its highest power consuming customers. This means that they make less money, which in turn means that they either make up the shortfall by borrowing more, increasing electricity rates or failing in other areas.
Selfishly, I can see myself helping them to limp along as long as possible until it can no longer go on.
Fortunately, this has been going on for long enough that the power cuts adhere somewhat loosely to a schedule. The schedules are designed in a way that different suburb groups are targeted at different times every day ensuring that not the same group of suburbs have their power turned off when it’s time to make dinner. This is further complicated by the stage of load shedding which increases the amount of times you get loadshedded in a day.
So, I find myself spending a bit of time looking at schedules. Some Industrious South Africans have made an app called Eskom Se Push which alerts you when your suburb is going to be load shedded as well as letting you know any changes to the load shedding schedule.
Since I work from home this allows me to know when I should stop mining and turn off my asics. Stopping the ASIC allows the ASIC fans to cool the hashboards down instead of letting them get cooled by passive ambient radiation, which is the case when the power is suddenly turned off. It’s even worse when your miner is in an enclosed space.
Recently, however, I started leaving the home quite frequently for a few hours at a time and this means that if I am scheduled to go down, say in 6 hours from now, I would miss out on 6 hours possible luck if I were to preemptively power down before i leave. It's not something that I enjoy doing.
So, what did I do? I wrote some software which allows me to use the whatsminer API to remotely connect to my whatsminer and turn off the mining remotely as I have VPN access to my home network. Hopefully, when I find some more time in the future, I will be able to connect this up to a telegram bot, which will allow me some finer control and not necessarily rely on using my VPN.
What would I do if I didn’t have a schedule? Well, I most probably wouldn’t be running any of the newer generation miners at all. Because even when throttled, they still use quite a bit of power and the boards heat up quite a bit. It’s an undesirable situation for me if they heat up quite a bit and get their power cut repeatedly. S9s are way more suited for this purpose. Not only are the machines robust as hell, when braiins (with two Is) firmware is loaded, you can throttle the machines down all the way to 100 watts. I would also probably be running multiple S9s to try and make up for the shortfall in overall hash.
This would allow me to set a temperature of the asic to a level that I would be happy with should an immediate disconnect of power occur.
Failing that, the other way one can mitigate a situation like that is to have a battery backup, that you link into that you can use to trigger shutdown conditions once the battery state gets reduced below a certain threshold.
Thats all all for now. If you need me, you can find me on twitter @tensaibankai and drop me a DM.
If you want to hear more from Tensai and missed our full episode check it out bellow.
https://bit-buy-bit.libsyn.com/tensai-bankai-on-bitcoin-freedom-and-farming
Show guest
twitter - @tensaibankai
twitter - @MaxBitbuybit
twitter - @bitbuybitpod
Website - https://ungovernablemisfits.com
Show guest
twitter - @tensaibankai
As always please feel free to reach out and ask me any questions.
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Difficulty adjustments. How do mnemonic seed words work? UTXO management.
Hello, ungovernable misfits. Ten-side bunker here, bringing you another bite-sized Bitcoin. Today, I'm going to be talking a little bit about mining here in South Africa with unreliable power.
South Africa has had a low-chidding crisis for almost a decade now, maybe a little bit more, and it's a problem that's been getting worse over time as the state gradually decays. This means that for multiple hours or time slots during the day, we have our power cut for up to eight hours a day where our power cuts lost
between two to four hours at a time. This has made things somewhat complicated when it comes to mining. When I've not been paying attention, the constant power interruptions have been somewhat destructive to my computing components, lost multiple graphic cards, motherboard, power supply units, even a washing machine.
So when I first got my miners, I decided to be a little bit more cautious with what I was doing around the home. Not only are these machines quite expensive, our input duties are extremely high, not to mention the difficulty of acquiring replacement parts locally.
So I felt specific attention needed to be put in place to ensure that you get the most out of these machines for as long as possible. And so one of the first things I do when I get a miner and I've connected it here is the plugs get replaced with surge protection plugs.
I also ensure that none of my miners are sharing circuits with other electronics or appliances. I've had multiple issues here in my office area where when the power turns back on, circuits end up tripping because of the high current draw as certain things turn on concurrently.
Now many people would look at this difficulty that I'm experiencing doing this, all these challenges, the high electricity costs, the intermittent power, and they would want to know why I want to mine in these conditions.
And I'll say I'm a bit of a zealot when it comes to Bitcoin. I like having KYC sets that I've earned by exchanging electricity for sets. Also like mining, even at a loss, it can have certain tax advantages.
And not to mention that this entire winter Bitcoin is what kept me warm. There are also many other issues I see in South Africa where as more and more people are going off the grid because of our intermittent power supply, our only state owned power provider is losing many of its highest power consuming customers.
This means that they make less money, which in turn means that they either make up the short fall by borrowing more, increasing electricity rates or failing in other areas. So selfishly, I see myself as helping them limp along for as long as possible until it can no longer go on by exchanging fiat for KYC free sets.
So fortunately, this has been going on for long enough that the power cuts adhere somewhat loosely to a schedule. These schedules are designed in a way that different suburb groups are targeted at different times every day ensuring that not the same group of suburbs have the power turned off when it's time to make dinner.
So everybody gets their turn at cooking in the dark. This is further complicated by the stage of load shading, which increases the amount of times you get load shaded in a day. So stage one load shading, you'll get shaded for only one hour a day and sometimes it might jump
up to stage three or four when your power gets cut three or four times a day. So I find myself spending a bit of time looking at the schedules and fortunately, some industrious other Africans have made an app called Eskom Sapush, which sends you alerts
when your suburb is going to be load shaded as well as letting you know if there are any changes to the load shading schedule. So since I work from home, this allows me to know when I should stop mining or turn off my ASICs and stopping my ASICs allows the ASIC fans to cool the ashboards down instead of letting them
get cooled by passive ambient radiation, which is the case when the power is suddenly turned off. And you know, this is even worse if your miner is in an enclosed space, which many plebs do to make the ASIC more bearable for a home situation.
So recently, I have found myself leaving the home quite frequently for a few hours at a time, and this means that if I'm scheduled to go down, say in six hours from now, I would miss out on six hours of possible luck if I were to preemptively power down before I leave, and this is not something that I enjoy doing.
So to mitigate the situation, I wrote some software, which allows me to use the Watts miner API to remotely connect to my Watts miner and turn off the mining remotely as I have VPN access to my home network.
Hopefully, when I have some more time in the future, I'll be able to connect this thing up to Telegram bot, which will allow me some finer control and not necessarily rely on my VPN, as well as linking up into the Escoms to push API so that all of this stuff can happen without any of my direct input.
So what would I do if I didn't have a schedule? Well, I most probably wouldn't be running any of the newer generation miners at all, because even when these ASICs are throttled, they still use quite a bit of power and the boards heat up quite a bit, and it's an undesirable situation for me.
If they heat up quite a bit and they get their power cut repeatedly, S9s are way more suited for this purpose. Not only are the machines robust as hell, when brains with two eyes firmware is loaded, you can throttle the machines all the way down to 100 watts,
and I would probably be running multiple S9s concurrently to make up for the short fall in overall hash. This would allow me to set the temperature of the ASIC to a level that I would be happy with should an immediate disconnect of power occur.
Failing that, the only other way one could mitigate a situation like that is to have a battery backup that you're linked to, that you can then use to trigger the shutdown conditions once the battery gets reduced below a certain threshold.
Well, that's all for now, and if you need me, you can find me on Twitter @tensibankai and drop me a DM.
Machine transcript; expect the odd mishearing. Click a passage to play from there.




