Techno-economic assessment and gas turbine integration of green hydrogen for power generation in Canada

Hydrogen is increasingly recognized as a key energy carrier in the transition toward a decarbonized energy sector. Among various production pathways, green hydrogen derived from renewable sources such as solar and wind offers a scalable and sustainable solution. This study investigates the techno-economic feasibility of green hydrogen production and its integration into gas turbine systems in Canada. Sensitivity analysis of the levelized cost of hydrogen (LCOH) shows strong dependence on discount rate, project lifetime, and production scale. Optimization indicates that a discount rate of 4.5%, a 25-year project lifetime, and an annual production of 5000 kg reduce the LCOH to $9.123/kg. Thermodynamic analysis confirms the feasibility of hydrogen as a gas turbine fuel, with less than 5% deviation between analytical calculations and Aspen HYSYS simulations. Hydrogen combustion produces no direct operational emissions, whereas natural gas results in more than 31,000 kg CO 2 -eq during 9 h of operation, highlighting the environmental advantage of hydrogen. • Techno-economic feasibility of green hydrogen production in Canada is assessed. • LCOH sensitivity to discount rate, lifetime, and production scale is quantified. • Optimized LCOH of $9.123/kg achieved under favorable economic conditions. • Hydrogen feasibility in gas turbines validated via Aspen HYSYS simulations. • Hydrogen use enables rated power output with near-zero operational CO 2 emissions.