Out of the box the jPro advertises 30 j/Th, but I see folks using aftermarket firmware getting 26, maybe even a bit less, with a jPro. So sub 20 j/Th is a significant improvement.

Building out a microgrid is pretty capital intensive, so I imagine miners will continue trying to find places where cheap power is stranded that doesn't require as much capex to get off the ground. Although adding this to existing solar farms could be a great way to use electricity when there's excess. I'd guess it's already being done.

I've been working on improving the angle of incidence. Results so far are greatly improved. I'll share more here when I have more data.

I don't yet have data on efficiency gains from going direct-dc, but Dirty from 100acresranch says he generally sees between 16-25 j/Th on a jPro. Again, I'll share what I'm seeing when I get the panel angle optimized.

Just did this for the first time last week. The transaction was in the mempool for around a week, then cleared yesterday. Magic.

100acresranch.com is the website. He's active on TG and I think he's on X as well. He's been very responsive and helpful getting the tuner setup.

I removed the power supply and added a Loki board from Pivotal Pleb Tech (pivotalpleb.com) to the control board before installing it in the tuner box. Pivotal Pleb has a detailed guide on their site for installing the Loki, which can also be used to allow a single s19 hashboard to be powered from 120v AC.

I watched your video! Love to see what you've done. Are you turning the miners on and off manually?

The low voltage is definitely a challenge. My furthest wire run is 45ft and I had to spend quite a bit on wire that could handle the runs. Thankfully it's a one time cost. I'm still gathering data to see what my efficiency numbers will be, but Dirty says he's achieved as low as 16w/Th on a j pro. Those power supplies do eat up some watts.

I don't think that direct dc is the best solution for all applications, but it is pretty cool to see the miner tuning it's power draw to what the panels are producing in real time.

I think plebs can mine at home if they're also taking advantage of the heat produced by the miners. Any instances where space or water heat are produced by electricity are opportunities to produce that heat with a miner and stack a little corn on the side. This only works for folks who are willing to get their hands dirty.

Did you also calculate the value of the heat you would receive? If you're running a space heater anyway, using a miner as that heater is a way to get a rebate on some of your electricity costs.

What is your electricity cost after the first year?

It's kind of a rush.

What is a demon?

We're thinking along the same lines. A decentralized grid is a resilient grid.

No, it's about as loud as our air purifier on its medium setting. Just a gentle white noise in the background.

I replaced the power supply fan with a quieter one from Noctua and underclock the s9 to 900 watts. If I want it quieter I can underclock it further or replace the miner fans with Noctua fans, but so far that is unnecessary.

You're right that, purely in USD terms I would come out ahead just purchasing BTC.

My considerations also take into account increasing my experiential capital, investing in energy resilience and abundance for my family, the value of the heat produced by the miner, and satisfaction I get from participation in the network.

The s9 is used as a space heater in a cool room in our house, so the BTC mined is essentially a rebate on power that would've otherwise been consumed by a resistive heater.

The short answer is, I don't need it to ROI in a certain amount of time. The miner is always available to turn excess electricity into BTC and heat. If I want to use the electricity the system produces for other tasks, the miner simply ramps down until there's extra electricity that needs a consumer.

Got it. I was trying to upload an unsupported file format.

I tried to add some pics. They didn't show up. Not sure what went wrong. I'll do some more digging and add them when I figure it out.

I tried to upload pics, but haven't figured it out yet. There are some pics on nostr here: https://primal.net/e/note1v3ean329z69h3mhgqjzlcf8n0afjj2epdmzn7v03r9ema8rqwf4sjrjjk2

As the system is currently configured the s19 is mining at around 20Th, so significantly more than my s9 hashes. I'm hearing from folks that tilting the panels south should help increase production. I'll post again when there's more data.

Thanks!

That's similar to how I'm thinking about it. The resilience afforded by supplying your own electricity is wonderful. Large scale solar doesn't make sense to me. Small scale, absolutely.

I think it is legit and usable on a small scale. I loved living on solar. We lacked nothing and had an abundance of energy many days.

Large scale and government subsidized I think it's a shitcoin.