In modern society, we often talk about financial independence, but rarely do we mention its foundation – energy independence. Most of us live in a system where we are entirely dependent on a centralized grid that dictates prices, conditions, and the rules of the game. Even when we install solar panels, we are often forced to sell our excess energy back to the provider at a pittance, only to buy it back at a premium when we need it most. This is not independence; it’s just a new form of tenancy.
My vision is different. Instead of treating excess solar energy as waste to be gifted to the grid, I see it as raw material for producing the hardest form of asset known to humanity – Bitcoin.
The core of this idea lies in a hybrid system that combines solar power, battery storage, and Proof of Work (PoW) mining. **The goal is to create a "closed loop" of sovereignty.**During the day, when the sun is at its peak, the home becomes a small factory. The panels power the household, while every remaining watt is directed into an ASIC miner. In this scenario, the Bitcoin miner doesn't just function as a profit-making device; it acts as an "energy valve" that prevents energy waste. Instead of the inverter throttling the panels because the battery is full and the grid won't accept the surplus, that surplus is converted into digital gold.
As the sun sets, batteries take over as the guardians of stability, smoothing the transition to off-peak grid hours. In this way, the home ceases to be a passive liability and becomes a sovereign production unit. Bitcoin mining acts here as a global energy arbitrage – it allows energy produced on a rooftop in a remote corner of the world, which would otherwise be lost, to be stored in a global, indestructible network.
This is not just about saving on a utility bill. This is a proof-of-concept where the individual owns both the energy and the money that energy creates. It is the ultimate Proof of Work – proof that the work of nature (the sun) and the work of a machine can liberate a person from dependence on central institutions.******
In the end, several key questions remain for anyone thinking in this direction:
Is a home truly sovereign if it depends on a state-mandated buy-back price for its energy?
Can Bitcoin mining be considered the most efficient form of "battery" for excess solar, considering that physical batteries have a limited lifespan?
Where is the line between a "smart home" and a "sovereign node" that independently generates value and maintains its own energy stability?
It is not economic at least on a small or medium scale.
The $99 cost of my Nano miner will take years to recover and I am using 100% free solar power and batteries to operate 24/7 although mid winter mining is limited for obvious reasons.
Mining with solar is only justifiable when in conjunction with a more direct reason for having solar system- for example mine is to keep the lights on, and fridge freezer running 24//365.
There is so much nonsense virtue signalling echo chamber circle jerking posted about BTC and LN yet many here cannot even bother to attach and use LN here on SNs.
I totally get your skepticism regarding small-scale ROI. Mining with a $99 Nano is a great educational tool, but as you said, the math is tough.
That’s exactly why I’m looking at this from a 'Sovereign Infrastructure' perspective rather than just a mining hobby. The solar system is being built primarily for home resilience (10kW hybrid + storage). The miner (S21) is there to act as a dynamic load to monetize the energy that the grid would otherwise force me to 'waste' or sell for peanuts.
It’s not about virtue signaling; it’s about practical energy arbitrage. If I’m already paying for the 'insurance' of having a solar house, why not let the excess energy secure the network and stack some sats in the process? I'd rather have my roof 'circle jerking' with a miner than giving free electrons to a utility company.
Fair enough although my solar system is a home supporting one with the objective of keeping fridge freezer lights and internet connection going 24/7/365.
I use 4x300watt + 450 watt panels and a dual system battery setup using 24v lead acid 100a/h as a backup and 24v Lifepo4 110ah as the main supply.
Entire system cost about NZD$7000.
This works to supply power 99.5% of the year with the backup of a small 800 watt petrol generator for those mid winter weeks when the sun might not shine.
We do not use electric for any heating and nearly all cooking is done on woodstove or gas hotplate.
Yes if you have a set up for running your home you will have surplus in summer and can use that to mine at whatever scale the set up enables...I suspect though it will be far from profitable and more of a minor sideline/hobby as my setup is.
Sure it is nice to be using some of the surplus to mine sats but do not hope to generate much if any real profit in the short term.
Maybe one day if BTC price goes to a million!
I get about 5 cents/kw/h mining (NZ currency) so if you have the option to sell back to the network you could probably get a better price- here in NZ you can get up to 15 cents/kw/h for selling back into the grid.
The time and effort spent in setting up and maintaining my mining operation definitely is not justifiable unless seen as a hobby...am constantly monitoring the battery level and weather forecast to set the miner at the ideal speed...for a dollar or two return every week!