Techno-economic analysis for clean hydrogen production using solar energy under varied climate conditions.

The paper discusses the feasibility of the use solar energy into hydrogen production using a photovoltaic energy system in the four main cities of Iraq. An off-grid photovoltaic system with a capacity of 22.0 kWp, an 8.0 kW alkaline electrolyser, a hydrogen compressor, and a hydrogen tank were simulated for one year in order to generate hydrogen. A mathematical model of the proposed system behavior is presented using MATLAB/Simulink, considering nine years from the 2021 to 2030 project span using hourly experimental weather data. The outcomes demonstrated that the annual hydrogen production ranged from 1713.92 kg up to 1891.12 kg, oxygen production ranged from 1199.74 to 1323.78 kg, and water consumption ranged from 7139.91 L to 7877.29 L. The hydrogen evaluated costs equal to $3.79/kg. The results show that the optimum site for solar hydrogen production systems can be established in the midwest of Iraq and in other cities with similar climates, especially those that get a lot of sunlight. • A technical and economic assessment of hydrogen production by solar energy. • A photovoltaic energy system with a capacity of 22 kWp produces hydrogen at a rate of around 1891.12 kg/year. • A photovoltaic energy system is a promising green hydrogen production technique in Iraq. • The levelized hydrogen cost produced by the 22 kWp photovoltaic energy system is $3.79/kg. [ABSTRACT FROM AUTHOR]