The 2025 Bitcoin halving has slashed mining rewards, pushing miners toward low-energy coins to maintain profitability. With energy costs soaring, miners are flocking to proof-of-stake (PoS) alternatives like Cardano (ADA) and Algorand (ALGO), which boast eco-friendly credentials. Cardano’s Ouroboros protocol offers staking rewards with minimal energy use, while Algorand’s pure PoS consumes 0.000008 kWh per transaction. Some miners are also exploring Hedera (HBAR), leveraging its energy-efficient hashgraph technology for high-speed transactions. This shift reflects a broader trend: Bitcoin’s energy-intensive proof-of-work (PoW) model is losing appeal amid global sustainability pressures. As miners diversify, these low-energy coins could see increased adoption, potentially driving their prices higher in late 2025.