Bitcoin mining has come a long way since the early days when anyone could mine from a laptop.
In 2009, the first Bitcoin blocks were mined using regular CPUs. That worked fine when only a few people were involved. But as more users joined, mining got harder. CPUs gave way to GPUs—graphics cards that offered faster performance and more efficiency.
Then came the first big shift: Application-Specific Integrated Circuits (ASICs). These machines were built for one thing—mining Bitcoin. The Bitmain Antminer S1, launched in 2013, was one of the first widely used ASICs. It could deliver about 180 GH/s at around 80 watts.
That might sound like a lot, but compared to what we use today, it was just the beginning.
By 2016, machines like the Antminer S9 had taken over. The S9 offered 14 TH/s and ran at about 1,300 watts. This machine changed the mining world.
For a few years, it was the go-to model.
Miners set up small farms in homes, garages, and warehouses. But as competition grew and mining rewards got harder to earn, the size and scale of mining had to grow.
Today, we’ve entered the era of megawatt farms. These are large facilities with thousands of ASICs running around the clock. At ValueHash, we support the latest high-performance miners like the Antminer S21 and soon S23 models, Whatsminer M30S, and other modern units from Canaan and Goldshell. Some of these devices like the Antminer S23 now deliver 500+ TH/s, using around 3,000 watts per unit.
This growth in performance has pushed infrastructure needs to a new level. Mining farms need steady power, advanced cooling, and strong security. That’s why our facilities in New York, Nebraska, and Kansas are design with industrial-grade setups. We use long-term power agreements, get rates as low as 6 cents to 7.5 cents per kWh, and rely on cool climates to reduce heat stress.
Cooling has also evolved. Early miners used basic fans. Now, we use hot/cold aisle setups, large-scale intake and exhaust systems. The goal is simple, keep the machines running at optimal temperatures for longer lifespan and better returns.
Security has scaled too. With millions of dollars in hardware and Bitcoin at stake, we use motion sensors, 24/7 surveillance, and controlled access at all sites. Downtime hurts profits, so we also invest in backup power and maintenance crews who fix issues on the spot.
As of April 2025, CoinShares estimates that global Bitcoin mining consumes about 15 gigawatts of power. That’s up from just 2.5 GW five years ago. The shift from home rigs to full-scale operations isn’t just about power, it’s about efficiency, reliability, and long-term returns.
Mining Bitcoin at this level isn’t just a hobby anymore. It’s a serious operation. The jump from S9s to megawatt farms shows how quickly the space has matured. For miners and investors, it’s no longer about finding a cheap machine—it’s about choosing the right partner with the right infrastructure.
Mining may look different now, but the core idea remains: secure the network and earn Bitcoin. With the right setup, it’s still one of the most cost-effective ways to build your holdings over time.