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Mining, its operation, its industry and its challenges

The mining industry

Heat your home while mining bitcoins

The mining industry

  • Mining pools
  • Software used by the industry
  • Regulation and electricity tariffs
  • Where do miners go and energy management?
  • Mining centralization

Mining pools

Currently, Bitcoin mining has evolved into a serious and substantial industry, with many players now publicly known and an increasing number of significant miners. This evolution has made mining almost inaccessible for small players due to the high cost associated with acquiring new mining machines. This raises the question of the distribution of hashrate among various market players. The situation is complex because it is essential to examine both the distribution of hashrate among different companies and among different mining pools.
A mining pool is a group of miners who combine their computing resources to increase their chances of mining. This cooperation is necessary because a small mining machine, operating in isolation, is competing against industry giants, significantly reducing its chances of success. Mining works on a lottery principle, and the chances of winning a block (and therefore the Bitcoin reward) every ten minutes are extremely low for an individual small miner. By pooling their computing power, miners can combine their resources, find blocks more frequently, and then distribute the rewards proportionally to each miner's contribution to the pool.
For example, if a pool finds a block and wins 6.25 bitcoins, a miner contributing 1% of the total computing power of the pool would receive 0.0625 bitcoins, or 1% of the 6.25 bitcoins earned. However, it is worth noting that mining pools typically charge a small commission (usually around 2%) to cover the cooperative's operating costs.

Software used by the industry

In the context of Bitcoin mining, the role of software is just as crucial as hardware. An example of this is illustrated by the role of Bitmain, a prolific manufacturer that developed the Antminer S9. In addition to mining hardware, the industry heavily relies on collaborative mining pools, such as Braiinspool, which controls approximately 5% of the global hashrate of the Bitcoin network. Actors in this industry are continually seeking to enhance efficiency through the use of hardware and software. For example, a popular software used in this context is BraiinsOS Plus. This software replaces the original operating system of the mining machine, allowing the same operations to be performed more efficiently. With such software, a miner can increase the efficiency of their machine by 25%. This means that for an equivalent amount of electricity, the machine can produce an additional 25% of hashrate, thereby increasing the rewards received by the miner. This software optimization is a crucial element of competitiveness in Bitcoin mining, highlighting the importance of an integrated approach that combines both hardware and software improvements to maximize efficiency and returns.

Regulation and electricity tariffs

As observed in China and elsewhere, regulation has a significant influence on mining. Although there are no significant mining operations in France, regulations and high electricity tariffs in Europe pose major obstacles. Miners are constantly searching for low-cost electricity to maximize their profits. Therefore, the high cost of electricity in Europe and France does not attract miners to these regions.
Miners tend to gravitate towards regions with low electricity tariffs, often in emerging countries or countries with energy surpluses. For example, a large portion of the global hashrate is located in Texas, United States. Texas has an independent power grid that does not share its energy resources with other states. This uniqueness often leads Texas to produce more electricity than necessary to avoid shortages, creating a surplus. Bitcoin miners capitalize on this overproduction by establishing operations in Texas, where they can mine bitcoins at extremely low electricity rates during periods of energy surplus. This situation illustrates the significant impact of regulations and electricity tariffs on Bitcoin mining, underscoring the importance of these factors in miners' decisions regarding the location of their mining operations.

Where do miners go and energy management?

By highlighting the impact of Bitcoin miners on the global energy landscape, the trajectory is clear: these actors are constantly seeking sources of cheap electricity, often those that are wasted or untapped. This phenomenon is evident in regions with new electrical infrastructure, such as those equipped with recent hydroelectric dams.
Let's take an example. In a country building a dam, electricity production often begins before the distribution lines are fully operational. This time gap can result in significant costs and discourage investment in such infrastructure projects. However, bitcoin miners can act as a flexible demand source, ready to consume this "orphaned" electricity, thus helping to offset infrastructure costs. The implication here is that new installations can be immediately profitable, promoting the creation of new sources of electricity. This principle also applies on smaller scales. Whether it's an individual using a hydroelectric generator on a small river or a household equipped with solar panels, the excess electricity produced can be used to power bitcoin mining operations.
In France, for example, surplus electricity from solar panels is injected back into the grid and producers are compensated with a consumption credit from EDF. Similarly, one can imagine a miner operating on this surplus electricity, shutting down when local demand equals supply. Although this may seem selfish, prioritizing bitcoin production over supporting the local power grid presents another angle: stabilizing the power grid. The complex management of surplus electricity, which sometimes incurs associated disposal costs, can be greatly simplified. Bitcoin miners can absorb these surpluses, acting as a flexible buffer, adjusting demand rather than supply. In a world where electricity production from renewable (non-controllable) sources is constantly increasing, miners can play a key role in ensuring the balance of our power grids, while benefiting from cheap or surplus electricity to power their mining operations.

Mining centralization

Mining centralization is addressed as a major challenge. Large players, such as Foundry, dominate the market, which can potentially lead to transaction censorship. This centralization can also make the network vulnerable to attacks, including the 51% attack, where an actor or group controls more than 50% of the network's hashing power, allowing them to control and manipulate the network.
Regulation Risk: It is emphasized that if a country like the United States were to decide to regulate or ban certain Bitcoin transactions, it could have a significant impact on the network, especially if a large portion of the hashing power is centralized in that country.
To combat this centralization, different strategies are discussed:
  • Home Mining: The idea of Home Mining is based on the decentralization of mining activity. It encourages individuals to participate in mining from their homes, thus distributing the hashrate more widely.
  • Stratum V2: The Stratum V2 protocol offers another approach. Unlike its predecessor, Stratum V2 allows miners to choose which transactions to include in the blocks they mine. This ability enhances resistance to censorship and reduces the influence of large mining pools on the network. By giving more power to individual miners, the Stratum V2 protocol can play a decisive role in the fight against hashrate centralization. Open-Sourcing Mining Software
  • Open-sourcing mining software: This is another potentially effective strategy. By making mining software accessible to everyone, small miners would have the same opportunities as large mining companies to participate and contribute to the blockchain network. This approach would encourage a broader distribution of hashrate, thus contributing to network decentralization.
  • Diversification of Actors and Geography: Encouraging the participation of diverse actors from different geographical regions in cryptocurrency mining can also prove effective. By diversifying the hashrate geographically, it becomes more difficult for a single actor or country to exert disproportionate control or influence over the network. This approach can help protect the network against potential attacks and strengthen its decentralization.
The general conclusion is that decentralization is crucial for the security and resilience of the Bitcoin network. Although centralization can offer efficiency benefits, it exposes the network to significant risks, including censorship and 51% attacks. Initiatives like Takai and the adoption of new protocols, such as Stratum V2, are important steps towards decentralization and protecting the Bitcoin network against these threats.
Quiz
Quiz1/5
How do regulations and electricity tariffs influence Bitcoin mining?