The Ethereum network currently relies on energy-intensive mining to generate and distribute new tokens. Thousands of miners worldwide operate high-value hardware to solve complex computational problems, competing to earn ETH while helping maintain network security.
Ethereum presently has 3,815 active nodes, primarily located in the United States, Germany, and China. However, a major upgrade scheduled for next year will fundamentally change how the network operates and how new ETH is created—marking the end of Ethereum mining as we know it. So, what comes next for all these miners?
Understanding Proof-of-Work and Proof-of-Stake
Bitcoin’s 2008 whitepaper introduced the cryptographic concept of Proof-of-Work (PoW) to create a secure, decentralized transaction network. When Ethereum launched in 2015, it adopted the same consensus protocol.
In simple terms, Proof-of-Work is a mechanism that ensures all node computers agree on transactions and database states, protecting the network from double-spend attacks. However, this process demands enormous computational power and consumes vast amounts of electricity—a common criticism from environmental groups.
Ethereum’s core developers have long been working on transitioning the network’s consensus mechanism from Proof-of-Work to Proof-of-Stake (PoS). This shift promises significantly lower energy consumption and improved scalability.
Ethereum 2.0 uses staking to maintain network security. Participants lock up tokens as collateral, and malicious actors risk losing their staked funds if they attempt to disrupt the network.
According to core Ethereum developer Tim Beiko, the existing PoW chain is expected to "merge" with the PoS chain by the end of this year. Once this happens, mining will cease. Miners are advised to plan conservatively and conclude mining activities before 2022.
The Merge: Transition from Eth1.0 to Eth2.0
Ethereum miner Michael Carter has analyzed potential mining returns under various market conditions in the coming months. He believes that mining profitability is unlikely to change dramatically before the Eth1.0 and Eth2.0 merge.
That said, Carter is also actively exploring alternative Proof-of-Work chains and is prepared to shift his mining resources should more profitable opportunities arise.
The situation is especially challenging for ASIC miners. “ASIC equipment will become practically useless, and miners could lose almost everything,” he notes. GPU miners, on the other hand, have more flexibility.
One popular transition strategy involves dual-mining Ethereum Classic and Ravencoin. Ethereum Classic emerged from a 2016 hard fork of the Ethereum network. It currently holds a market cap of $41.6 billion, ranking 15th among all cryptocurrencies. Ravencoin, with a market cap of $2.89 billion and a price of around $0.05, is another option. Both can be mined using GPU hardware, though they are considerably smaller than Ethereum.
Additional Challenge: The EIP-1559 Update
In July, Ethereum underwent another significant upgrade that altered miners' revenue structure and amount. This update, known as Ethereum Improvement Proposal (EIP) 1559, introduced an automated gas fee pricing mechanism and began burning those fees.
Instead of distributing transaction fees to miners, the network now sends them to a burn address, effectively removing them from circulation. Miners only receive newly minted ETH as a reward. Supporters of EIP-1559 argue that this benefits everyone by reducing ETH supply and potentially increasing its value—though most miners disagree.
Many mining pools have strongly criticized the proposal, and some miners have already started leaving the network. EIP-1559 marked the beginning of a gradual miner exodus, which will culminate with the full transition to Proof-of-Stake.
If a large number of miners exit before the merge, the overall network hash rate will decline, increasing the rewards for those who remain. In other words, fewer miners mean higher earnings per participant.
As Beiko explains, “We need some miners to continue until the very last block before the merge to ensure network security. Given the substantial investments in infrastructure, many miners have a strong incentive to mine until the final block.”
Who Is Prepared?
While everyone in the ecosystem is aware of Ethereum’s shift to Proof-of-Stake, some have been preparing longer than others.
F2Pool, the second-largest Ethereum mining pool, was among the first to establish an Ethereum 2.0 validator pool. Notably, it was also the first major pool to support EIP-1559, arguing that although the proposal reduces block rewards, it may lead to higher ETH prices over time.
A representative from F2Pool stated, “We learned a costly lesson in 2016 during The DAO incident and the subsequent hard fork. Key developers and core contributors sided with what is now Ethereum, and that chain has thrived. Ethereum Classic, by comparison, developed more slowly. We don’t want to be left behind again.”
Not all mining pools share this view. SparkPool, which controls about a quarter of Ethereum’s hash rate, publicly opposed EIP-1559, calling it “wealth redistribution” and “tyranny of the majority.” SparkPool is also strongly against the Eth2.0 merge.
According to Beiko, dissenting miners could create a fork of Ethereum that continues to use Proof-of-Work—effectively an “Ethereum Classic 2.” Should major pools like SparkPool refuse to upgrade, they risk being left behind.
Frequently Asked Questions
What is the main difference between Proof-of-Work and Proof-of-Stake?
Proof-of-Work relies on computational effort to validate transactions and secure the network, consuming significant energy. Proof-of-Stake uses validators who stake cryptocurrency to achieve consensus, which is far more energy-efficient.
Can Ethereum miners still profit after the merge?
While Ethereum mining will end, miners can repurpose their hardware for other Proof-of-Work cryptocurrencies or participate in Ethereum staking. 👉 Explore transition strategies
What happens to mining hardware after Ethereum moves to PoS?
ASIC miners designed specifically for Ethereum may become obsolete. GPU miners can switch to other mineable coins or sell their equipment in secondary markets.
How will EIP-1559 affect miners before the merge?
EIP-1559 reduces miner revenue from transaction fees by burning them instead. This may accelerate miner departure ahead of the full PoS transition.
Is it still profitable to mine Ethereum before the merge?
Profitability depends on electricity costs, hardware efficiency, and ETH market price. Some miners may remain profitable until the very end, especially if others exit early.
What are the best alternative coins for GPU miners?
Ethereum Classic and Ravencoin are among the most popular alternatives. Other options include Ergo and Beam, which also support GPU mining.
The Ethereum ecosystem is evolving, and miners must adapt to these significant changes. Strategic planning and flexibility will be essential for those looking to continue participating in the crypto mining space.