What Is the Primary Driver of High Energy Use in Pure PoW?

The high energy use in pure PoW is primarily driven by the continuous, global competition among miners to find the next valid block hash. Miners are incentivized by block rewards to dedicate massive amounts of specialized hardware (ASICs) to constantly guess the nonce.

This competitive guessing game, known as the 'race to the hash', requires constant electricity consumption on a massive scale.

What Is an ASIC-resistant Algorithm and How Does It Promote Decentralization?
How Is the Energy Consumption of a Mining Operation Related to Its Hash Rate?
Why Is the Nonce Typically Incremented Sequentially by Miners?
What Is the Purpose of a “Block Header” in a Blockchain?
How Do Energy Costs Influence a Miner’s Profit Margin in PoA?
How Does the Network’s Difficulty Target Relate to the Energy Expenditure in PoW?
What Was the Transition from CPU to GPU to ASIC Mining?
What Is a ‘Hash Rate’ and How Is It Measured?

Glossar