Green Hydrogen: Climate Savior or Costly Fantasy?

Hydrogen's role as a climate-friendly energy alternative is complex, heavily dependent on its production method. Currently, nearly all global hydrogen is produced from fossil fuels, generating carbon dioxide. While methods like electrolysis powered by renewables (green hydrogen) offer a climate-friendly path, they are substantially more expensive than fossil-based alternatives.

Grey hydrogen, produced from natural gas, is the cheapest option at $1 to $2 per kilogram. In contrast, green hydrogen currently costs between $7 and $19 per kilo, a price expected to decrease but remain at least double that of grey hydrogen by 2030. Sustainable hydrogen is not anticipated to be available on a large scale until the 2030s.

Key sectors like refineries, ammonia production, steel, transport, and energy are expected to be major hydrogen users. Hydrogen is particularly relevant where direct electrification is unfeasible, such as heavy goods transport, shipping, and aviation. However, it is not considered cost-efficient for widespread private household heating.

Globally, approximately 100 million tons of hydrogen are produced, with China being the largest producer, primarily using coal. The European Union aims to produce 10 million tons of green hydrogen by 2030, a target that falls short of demand. Despite Europe's historical strength in electrolysis technology, China has significantly expanded its production capacities, becoming central to global electrolyzer manufacturing.