The global grey hydrogen market was valued at US$ 147.4 Bn in 2024 and is projected to grow at a CAGR of 3.8% from 2025 to 2035, reaching approximately US$ 222.2 Bn by the end of 2035. Despite increasing attention on green and blue hydrogen, grey hydrogen continues to dominate global supply due to its cost advantages, mature infrastructure, and strong industrial demand.   Why Grey...