The cost to produce green hydrogen is typically between $4.10 and $7 per kilogram, and it requires about 10 liters of freshwater and 50 kWh of electricity to produce 1 kg of hydrogen.

 The cost to produce green hydrogen is typically between $4.10 and $7 per kilogram, and it requires about 10 liters of freshwater and 50 kWh of electricity to produce 1 kg of hydrogen. The cost of producing green hydrogen is sensitive to the price of electricity, especially the wholesale power price. 

Here are some other things to consider when producing green hydrogen and green ammonia:

Hydrogen production costs

The cost of producing hydrogen from fossil fuels is $2.4/kg, while the cost from electrolyzed water is $4/kg. 

Hydrogen production methods

The cost of producing hydrogen via electrolysis in Europe varies from 4.13 to 9.30 EUR/kg of hydrogen. 

Hydrogen production plant design

The design of a hydrogen production plant includes equipment for cooling, hydrogen processing, electricity input source, water input source and treatment, and gas output. 

Water supply

The projected hydrogen demand by 2030 will create approximately 21 billion cubic meters of freshwater demand. 

Seawater and wastewater

Seawater and wastewater resources can be used to support hydrogen production at large scales. 

Desalination technologies

Direct seawater electrolysis and desalination technologies can support green hydrogen production.