Power-to-gas technologies can enable the integration of renewable technologies to utility power grid. They can be used to store the excess power generated in the form of hydrogen or natural gas. Electrolysers are used to convert the excess power generated to the hydrogen. Proton exchange membrane (PEM) electrolysers or alkaline electrolysers or solid oxide electrolysers are used to generate hydrogen by the electrolysis of water. Hydrogen thus generated is either injected directly into the gas grids or stored to be used in the future. Sometimes, hydrogen is also allowed to react with carbon dioxide to generate methane and this process is known as methanation. Methanation can be achieved biologically or by thermocatalytic processes. The methane that is generated is then injected into the natural gas grid. Hydrogen and methane generated can be distributed for immediate consumption or they can be stored and used to generate electricity, for heating purposes and to power vehicles.
The Energy and Power Systems (EPS) TechVision Opportunity Engine (TOE) provides insights on the latest advances in the broad range of technology related to the energy industry. The topics regularly presented range from energy storage technologies (batteries, fuel cells, flywheels and other advanced energy storage devices) to non-renewable energy such as oil and gas. Special emphasis is given to emerging areas in the renewable sector such as photovoltaics, wind energy, and geothermal energy, and emerging alternative fuels such as hydrogen, syngas, ethanol and biofuels. The EPS TOE keeps clients abreast of the latest R&D developments at major corporate and academic research centers, provides competitor intelligence and helps create strategic alliances.
The Sustainable Energy cluster provides global insights and intelligence on a wide variety of disruptive emerging technologies and platforms ranging from energy storage, advanced batteries, solar and wind energy, to unconventional oil, bioenergy, geothermal energy, and energy transmission.
Keywords: Power-to-gas, electrolysis, biomethanation