Storing Energy

Chapter 18

Power-to-Gas

Robert Tichler^*

Stephan Bauer^***    Department of Energy Economics, Energy Institute, Johannes Kepler University Linz, Linz, Austria^**    Innovation and Development, RAG Oil Exploration Company, Vienna, Austria

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 the chapter the term “power-to-gas” is defined as the utilization of (surplus) ...