Electrolysis is a promising option for carbon-free hydrogen production from renewable and nuclear resources. Electrolysis is the process of using electricity to split water into hydrogen and oxygen. This reaction takes place in a unit called an electrolyzer.

Learn about NREL's renewable electrolysis research, which focuses on designing, developing, and testing advanced experimental and analytical methods to improve electrolyzer stack and system efficiency.

May 24, 2023 · Electrolyzers that use renewables to power their hydrogen production – like wind, solar, hydroelectric power, or certain biofuels – churn out emissions-free production of green hydrogen.

Today, the most common way of producing green hydrogen is via electrolysis - a process whereby water is split into hydrogen and oxygen using electricity generated from entirely renewable energy sources. This occurs in units known as electrolyzers.

Hydrogen from Next-generation Electrolyzers of Water (H2NEW) is a consortium of nine U.S. Department of Energy (DOE) national laboratories focused on making large-scale electrolyzers, which produce hydrogen from electricity and water, more durable, efficient, and affordable.

Jul 2, 2023 · Electrolyzers are the core pieces of a chemical kit that splits a mole of H 2 O into a mole of H 2 and a half mole of O 2. The report from Carbon Solutions puts the number of electrolyzers operating in the US at just 42, with a combined hydrogen production capacity of about 3,000 t per year.

Nov 7, 2017 · Electrolyzers use electricity to break water into hydrogen and oxygen. The electrolysis of water occurs through an electrochemical reaction that does not require external components or moving parts. It is very reliable and can produce ultra-pure hydrogen (> 99.999%) in a non-polluting manner when the electrical source is renewable energy.

As one in a series of Hydrogen Shot reports and assessments, this report, Hydrogen Shot: Water Electrolysis Technology Assessment, focuses primarily on current electrolyzer status and research, development, and demonstration needs to achieve $1/kg H2 based on current information and analysis.

• Characterize electrolyzer performance under variable input power conditions • Design and develop shared power electronics packages and controllers to reduce cost and optimize system performance and identify opportunities for system cost reduction through breakthroughs in component integration

Generating green hydrogen efficiently from water and renewable energy requires high-end technology and innovative solutions — like our electrolyzer product family from Siemens Energy. Using Proton Exchange Membrane (PEM) electrolysis, our electrolyzer is ideally suited for harnessing volatile energy generated from wind