Techno-economic analysis of offshore wind PEM water electrolysis for H2 production

A model for producing hydrogen via offshore wind electrolysis was developed and the levelized costs of both energy and hydrogen were calculated. This model calculated the cost of hydrogen produced by offshore wind and showed that the levelized cost of energy for hydrogen production and transportation to shore could be lower than for electricity transmission from offshore wind farms, using real wind data from a particular location. Therefore, direct coupling of the electrolysis system with offshore wind turbine is more advantageous than transmitting electricity to shore and then producing hydrogen via traditional electrolysis; the cost of hydrogen from offshore wind electrolysis is estimated to be $2.09/kg versus $3.86/kg from traditional electrolysis using wind power. • A model for producing hydrogen via offshore wind electrolysis was developed. • The levelized cost of energy (LCE) is significantly lower for H 2 production/transportation • Direct coupling of electrolysis system within wind turbine is financially advantageous. • The levelized cost of H 2 (LCH) could be as low as $2.09/kg when using direct wind electrolysis • The cost of offshore electrolysis is also impacted by electrolysis-system size.