Renewable energy is naturally intermittent. Hydrogen
provides a means to store renewable energy for times when the sun doesn't shine
or the wind doesn't blow. When these resources are available, they can be used
to generate electric power for immediate use, with surplus energy being
converted to hydrogen using an electrolyzer. The hydrogen is stored until
renewable energy is unavailable, at night or on cloudy or windless days. A fuel
cell then converts the stored hydrogen to electric energy. Hydrogen thus offers
a solution to renewable energy's key deficiency, i.e. that it's not always
available when we need it. To learn more about the connection between renewable
energy and hydrogen and fuel cells go to the solar hydrogen cycle web
page. |