S9 hashing on direct DC solar and AC PSU hybrid system

https://v.nostr.build/ZF3imFr3BxzP6Y7u.mp4

Here I have an S9 powdered both by the 12v DC output of a solar charge mppt controller and the output of an apw3++ plugged into an inverter. The output of the solar charge controller is wired directly to DC output lugs of the PSU. As the clouds roll by the output of the solar power decreases and the PSU delivers more power from the inverter. This same technique can be used by plugging the PSU into a grid powered outlet instead of the inverter. It's basically a way to subsidize the power consumption of a miner with solar power directly. It's pretty cool to watch.

#bitcoin #bitcoinmining #plebminer #homemining #offgridmining #solarmining #offgrid#solarpower

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I don't usually repost #bitcoin stuff but I really dig this note. Tinkering with electrical systems is fun. Keep signing #danknotes my dude.

nostr:nevent1qqspfzer95lcdjd6rr4zr64sm7adgmpk96h4pg3d4d6jz83nvsrpvagppemhxue69uhkummn9ekx7mp0qgsy6q3ua80awknlxp6m368qssqghct6ra6scca4meepumhcswkuwegrqsqqqqqp3ykqlz

DC should be better efficiency too?

You hit the nail on the head. For the latest bitaxe 5v miners, dc-dc will be the way to go. A few dc-dc converters is simpler than going thru an inverter.

Wow! thanks. I have to 5th this now

Amazing, but this makes my head hurt. Only reason I can figure that this works is that the voltage coming off the charge controller is probably like 13.7v as it's trying to bulk charge or something, and the PSU is probably shunting above 12.5v. When the solar charge voltage drops below 12.5v the psu starts trying to hold at 12v.

I don't love it, would prefer the logic in a single device, especially if the psu is tied to mains. That being said, if it works its not stupid, and this is genuenly one of the most intersting thing I've seen recently. Congrats!

After 3 months of poor solar mining conditions, hashrate is ripping again, off grid, at the yurt.

Late October was the last time a miner was plugged into the solar power system at the yurt. As the solar mining season comes to a close, the winter heating season begins and the miners are needed for heat in the house.

The system was expanded to its maximum production potential with the existing inverter, and charge controllers. This allows for full utilization of the equipment for Bitcoin mining which fast tracking the return on investment. Since installing the equipment, Bitcoin mining has already recoupped 25 percent of the total cost. (There is a 30 percent tax refund/credit whatever the fuck too)

It's a totally different story when denominating the expenses in Bitcoin (that's true of anything). The goal was to increase resilience and balance forms of capital. It's impossible to know when a extended power outage might occur and this solar power setup is enough to keep my essential loads running, plus I already had the miners to utilize the power in the meantime. Now, the system is completely installed, and I'm familiar with it's operations and repairs. After the power is out it's too late, and I'll wish I already had the system instead of Bitcoin anyway.

#permaculture #permies #homesteading #meshtadel #bitcoin #bitcoinmining #plebminer #offgrid #solarpower #resilience

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This is awesome. I might have to try this.