Enertis Applus+ conducted a comprehensive study analyzing the production costs of green hydrogen in various international locations. The research aimed to assess the viability of large-scale green hydrogen production by evaluating the levelized cost of hydrogen (LCOH). The analysis involved over 4,000 simulations across ten locations worldwide, considering different levels of solar and wind resources. The study focused on off-grid electrolyzers powered solely by renewable electricity generation systems. The research explored a wide range of hybrid configurations involving solar photovoltaic plants, wind farms, and battery energy storage systems to identify the most efficient and economically competitive combinations. By keeping the electrolyzer power constant and varying the composition of generation sources and energy storage capacity, the study enabled comparable scenarios across all locations. The study highlighted the importance of renewable resource availability in determining hydrogen production potential. Locations benefiting from complementary renewable sources such as solar and wind demonstrated advantages by enabling higher capacity factors for the electrolyzer, resulting in lower LCOH and increased efficiency. The analysis identified optimal system configurations by balancing energy curtailment, electrolyzer capacity factors, and renewable resource availability. The findings emphasized the significance of well-managed renewable generation in maximizing electrolyzer operation and achieving substantially lower LCOH. Locations like Texas (USA) and Cádiz (Spain) showcased high-capacity factors and significant LCOH reduction below $3.6/kg. In contrast, regions with lower electrolyzer capacity factors, such as Romania, faced challenges in achieving similar cost efficiencies. The study provides valuable insights for enhancing the cost-effectiveness of green hydrogen production through renewable integration and storage systems.