Shardeum is Environmentally Friendly.

Blaise Hilary
2 min readFeb 18, 2024

Bitcoin and many other blockchain networks have come under scrutiny for their environmental impact. The process of validating transactions on these networks requires powerful computers, which consume a significant amount of energy. This energy consumption leads to emissions that can harm the environment by reducing air purity. To mitigate these effects, blockchain networks need to become more energy-efficient.

The Need for Energy-Efficient Consensus Algorithms

One way to improve the energy efficiency of blockchain networks is by using consensus algorithms that do not require excessive energy expenditure. Traditional algorithms like Proof of Work (PoW) are known for their high energy consumption. In contrast, algorithms like Paxos and Practical Byzantine Fault Tolerance (PBFT) are more energy-efficient. These algorithms rely on assigning node IDs to participants, which are used to validate transactions.

The Challenge of Permissioned Node IDs

While node IDs can improve energy efficiency, many existing algorithms that use them are permissioned. This means that a central authority decides which nodes can join the network, reducing security and decentralization. Permissioned systems also limit the openness and inclusiveness of the network.

Shardeum: A Solution for Energy-Efficient and Secure Consensus

Shardeum is a blockchain network that addresses these challenges by using a decentralized and secure node ID generation protocol. Unlike traditional permissioned systems, Shardeum’s protocol does not require a central entity or trust among nodes. This approach maintains the openness and inclusiveness of the network while ensuring energy efficiency and performance.


As blockchain technology continues to evolve, it is crucial to prioritize energy efficiency and environmental sustainability. By using innovative consensus algorithms like Shardeum, blockchain networks can reduce their environmental impact while maintaining security and decentralization.

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