en.Wedoany.com Reported - When evaluating solar hydrogen projects, it is not enough to look at electrolyser price or PV capacity. For Photovoltaic Hydrogen Production, the first cost driver is usually electricity cost, followed by electrolyser investment, utilisation hours, O&M, water treatment, storage, transport and financing cost.

Water electrolysis is highly electricity-intensive. Lower PV electricity cost improves hydrogen competitiveness, but solar output is intermittent. If electrolysers operate at low load for long periods, equipment depreciation per kilogram of hydrogen rises. Project economics must therefore consider both low power prices and sufficient electrolyser utilisation.

The IEA states that low-emissions hydrogen remains more costly than unabated fossil-based hydrogen, and the cost gap remains a key barrier to project development. It also notes that electrolyser cost projections have become less optimistic because deployment has been slower than expected. At the same time, renewable hydrogen in China could become cost-competitive by the end of this decade due to low technology costs and cost of capital.

This means solar hydrogen must be assessed by region. Desert, Gobi and plateau areas with strong solar resources can provide low-cost PV electricity, but they are often far from hydrogen demand centers, and storage or transport costs may offset the electricity advantage. Regions near industrial demand have easier offtake, but land, solar resources and power prices may be less favorable.

A professional project model should include total cost. Beyond PV generation and electrolyser CAPEX, developers must calculate grid connection, hydrogen tanks, compressors, pipelines or transport, purification, water systems, certification and backup power. If only PV LCOE and electrolyser cost are considered, project returns may be overestimated.

The commercial path for Photovoltaic Hydrogen Production is not maximum scale, but balancing lowest total cost with the most certain hydrogen demand. The most bankable projects are not necessarily the largest or most promoted, but those with the best match among electricity price, utilisation hours and downstream offtake.

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