Large-scale green hydrogen production via alkaline water electrolysis using solar and wind energy

Abstract

The study provided a precise technique for comparing wind and solar solutions for large-scale production of green hydrogen. A one-year experimental dataset depicting the wind speed and solar irradiance with a precision of 1 min. The carbon footprint study was conducted, and indicators were applied and evaluated for the purpose of standardising the performance assessment technique for renewable-based hydrogen production systems, such as the electrolyser capacity fulfilled by wind turbines and solar photovoltaic power plants. On the basis of the considered capacities of 2.5 for wind turbines and solar photovoltaics for cost estimating findings, the obtained optimum electrolyser capacity can match the energy produced by the wind turbine power plant, which is 1.5 MW, which can produce hydrogen at a rate of about 11,963 kg/year at 8.87$/kg, and the obtained optimum electrolyser capacity can match the energy produced by the solar photovoltaics power plant, which is 2.0 MW, which can produce hydrogen at a rate of about 94,432 kg/year at 6.33 $/kg. Further, the polynomial relation between hydrogen production and electrolyser capacity has been destroyed. The method used is easily adaptable for testing large-scale applications such as industrial plants, as well as any hydrogen requirements and environmental conditions.