Abstract
The increased integration of intermittent renewable energy sources such as wind and solar power is a growing challenge to the new flexible model of energy production. This integration has led to the development and promotion of energy storage systems with new long-term storage options such as power-to-gas. Power-to-gas refers to the chemical storage of electrical energy in the form of gaseous substances such as methane or hydrogen. In this chapter the term “power-to-gas” is defined as the utilization of (surplus) electrical energy from renewable power sources for the production of hydrogen in an electrolyzer and the optional synthesis of methane or other hydrocarbons from hydrogen and carbon dioxide.
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