What took solar modules four decades is unfolding with electrolyzers in just a few years. Chinese manufacturers already offer alkaline electrolyzers for $200 to $400 per kilowatt, while Western systems still cost $750 to $1,300. In regions with cheap solar or wind power, this price collapse brings green hydrogen for the first time into economically interesting proximity to fossil alternatives.
How Far Costs Have Fallen in Six Years
According to IRENA data, an alkaline electrolyzer cost $1,200 to $1,500 per kilowatt of installed capacity in 2020. Since then, prices have developed at two speeds. Western PEM systems (Proton-Exchange-Membrane) reached $750 to $1,300 per kilowatt, Chinese alkaline electrolyzers dropped to $200 to $400. Analysis of international tender data by Hydrogen Insight showed Chinese equipment was two to five times cheaper than Western competitors.
Peric Hydrogen, China's largest electrolyzer manufacturer, now produces with capacity of 6.5 gigawatts per year. Longi Green Energy, known as the world's second-largest solar module manufacturer, entered electrolyzer production while leveraging the same production lines and supply chains. China controls around 60 percent of global electrolyzer manufacturing capacity according to industry figures. This creates the same cost dynamics the country demonstrated in solar.
What This Means for Production Costs
Power costs determine overall green hydrogen production costs more than capital costs, often accounting for 60 to 70 percent. In regions with very cheap renewable power—the Atacama plateau in northern Chile with over 3,000 sunshine hours per year, Australia's northwest coast with consistent wind, or parts of Saudi Arabia and Oman with cheap solar power—unsubsidized green hydrogen production costs are already dropping to around $2.50 per kilogram according to IRENA and energy analysts calculations.
This still seems distant from gray hydrogen from natural gas at $1.20 to $1.80 per kilogram or blue hydrogen (natural gas with CO2 capture) at $1.50 to $2.50. But the gap is smaller than five years ago. IRENA already projected in 2020 that ambitious electrolyzer deployment could bring green hydrogen in best-resource regions below $2.50 before 2030. In individual markets, that is now reality.
In Comparison: What the Solar Curve Shows
China's role in electrolyzers is no accident. The same pattern appeared in photovoltaics. In 1976, solar panels cost around $100 per watt according to Lazard data. By 2024, the price fell to under $0.30, a decline of more than 99 percent. Chinese manufacturers played the key role in decisive scaling phases between 2008 and 2015 when prices fell 30 to 40 percent annually and numerous Western competitors left the market.
For lithium-ion batteries for electric vehicles, Bloomberg NEF recorded more than 90 percent price declines per kilowatt-hour between 2010 and 2024. Electrolyzers, according to experts, remain in the early part of this curve. IRENA projects long-term potential for another 80 percent cost reduction compared to 2020. What took decades in solar and batteries could occur in a shorter timeframe for electrolyzers through deliberate scaling policy.
What Critics Point Out
The electrolyzer price is not the decisive problem for green hydrogen's climate balance. It is the electricity flowing through it. Green hydrogen is only truly climate-neutral when powered by generation facilities built as additions to existing capacity and not drawn from the normal electricity grid. This additionality requirement is difficult to enforce in practice.
The Center for Strategic and International Studies (CSIS) and environmental group NRDC warned during disputes over the US Inflation Reduction Act tax credit program (45V) that without strict additionality requirements, projects could claim government subsidies that de facto generate more CO2 than conventional natural gas hydrogen. The United States has largely closed this chapter: the One Big Beautiful Bill Act of 2025 ended 45V support five years earlier than planned, by end of 2027.
This dampens immediate US investment prospects but does not change the global technology cost curve. Europe and Australia are developing their own certification frameworks. The EU has adopted delegated regulations on renewable hydrogen requiring additionality and hourly verification obligations. The result is a regulatory fragmented market: technologically mature, but not yet consolidated on the demand side.
2030 as First Test Without Subsidies
The US Department of Energy launched the "Hydrogen Shot" with a goal of $1 per kilogram by 2031, without subsidies, in best-case regions. Whether this target is achievable depends on two factors. First, cheap renewable projects must be built worldwide quickly enough to provide sufficient power for dedicated electrolyzer facilities without displacing existing consumers. Second, long-term supply contracts are needed: Chile, Australia, and several Gulf states have announced export projects, but contracts for fixed hydrogen delivery to Europe and Japan remain rare.
For Europe, the question is not hypothetical. Steel, chemicals, and heavy shipping have no other technically realistic decarbonization pathway than hydrogen. If costs continue falling by 2030 and certification questions are resolved, that would provide different foundations than today. Green hydrogen would not need to be cheap. It would only need to be cheaper than fossil hydrogen with CO2 pricing. A threshold that in Europe is already drawing closer.