To bridge the price gap, we must drive down the capital costs of electrolyzers through massive manufacturing scale. Moving from laboratory prototypes to gigafactory-style production lines will likely trigger the same cost crashes seen in solar PV. We also need better materials science to replace expensive catalysts like iridium and platinum with more abundant alternatives. Efficient water management and advanced membrane technology will further squeeze out wasted energy during the splitting process.
Policy plays an equally vital role. Governments can bridge the immediate financial gap through carbon pricing or direct subsidies like production tax credits. Without a high enough price on carbon, grey hydrogen remains unfairly cheap because it ignores its own emissions. We also need clear frameworks for "green" certification to ensure buyers know exactly what they are paying for. Long-term contracts, such as off-take agreements, give investors the certainty they need to fund multi-billion dollar infrastructure projects. If we pair these policy levers with cheaper renewable energy, green hydrogen can finally compete on its own merits.
