Green Hydrogen Economics: Investment Opportunities and the Future of Global Energy Transition

Abstract

Green hydrogen has emerged as an important option for reducing carbon emissions in sectors where direct electrification is difficult, including steel, fertilizer, chemicals, shipping, aviation, and long-duration energy storage. Produced through water electrolysis powered by renewable electricity, green hydrogen can reduce dependence on fossil fuels and support the transition toward low-carbon energy systems. However, its development remains constrained by high production costs, limited electrolyzer capacity, uncertain industrial demand, insufficient storage and transport infrastructure, and high financing costs, particularly in developing economies. This paper examines the economics of green hydrogen, focusing on investment opportunities, cost drivers, policy support, trade potential, and its future role in the global energy transition. The study relies on secondary data from the International Energy Agency, International Renewable Energy Agency, Intergovernmental Panel on Climate Change, World Bank, and relevant academic literature. The analysis finds that green hydrogen is most economically justified in hard-to-abate sectors rather than in applications that can be directly electrified. Renewable electricity prices, electrolyzer capital costs, utilization rates, access to finance, and guaranteed long-term demand are the main determinants of project viability. The study concludes that green hydrogen can become a major component of the global clean-energy system if governments and private investors coordinate renewable-energy expansion, industrial demand creation, transport infrastructure, certification standards, and risk-sharing mechanisms.