Italian researchers have found hydrogen storage offers more supply-side flexibility than batteries. Their study, published in Applied Energy, shows the optimal PV-to-electrolyzer ratio ranges from 1.8 in southern Italy to 2.1 in the north. They have also found that grid dependence increases by 60% when considering the aging of PV systems, electrolyzers, and batteries, raising the levelized cost of hydrogen (LCOH) by 7%. The research, conducted by the Università degli Studi di Firenze, used hourly data and the Multi Energy System Simulator (MESS) for optimal sizing, aiming to minimize LCOH while complying with green hydrogen incentives. They concluded that stricter temporal requirements for certification raise green hydrogen by 22% while only slightly increasing LCOH.
Saturday, 22 February, 2025
