40% of global greenhouse gas emissions come from “hard-to-abate” industry sectors like industrial processing and transport. Electrification won’t be enough. They also need hydrogen, argue Patrick Molloy and Leeann Baronett at Rocky Mountain Institute. Hydrogen production is already well established and growing. But it’s mainly for the chemical industry, which never meant it to be “green”: sure enough, only 4% of current hydrogen production is made by electrolysis powered by renewables. The rest is created using fossil fuels. Ramping up green hydrogen is essential if it’s to meet its full transition potential, as growing demand for alternative energy will see hydrogen production quadruple by 2050, say the authors. Though green hydrogen is still expensive and hard to scale, it’s the same criticism that was once aimed at wind and solar, criticism now shown to be short-sighted.
Energy Post 3rd Sept 2019 read more »