Hydrogen is about three times bulkier in volume than natural gas for the same enthalpy, and hydrogen accelerates the cracking of steel (hydrogen embrittlement), which increases maintenance costs, leakage rates, and material costs.
Hydrogen is about three times bulkier in volume than natural gas for the same enthalpy. Hydrogen accelerates the cracking of steel (hydrogen embrittlement). Steel (hydrogen embrittlement) increases maintenance costs. Steel (hydrogen embrittlement) increases leakage rates. Steel (hydrogen embrittlement) increases material costs.