The use of hydrogen for motoring or heating on a large scale is problematic for several reasons. First, the production of “green hydrogen” by electrolysis is extremely wasteful compared to using renewable energy directly to run heat pumps or electric vehicles. You need around five times more wind or solar power to heat a house with hydrogen than to heat the same house with an efficient heat pump. Fuel cell cars need almost three times as much electricity compared to electric vehicles. As a result of this inefficiency, the required expansion rates for renewables would be extremely high, a fact pointed out by the UK Committee on Climate Change in its comprehensive report on the future of hydrogen. The expansion of renewable energies is already happening too slowly to even reach the climate targets. It seems highly unlikely that Europe will have the money and the land to build five times as many turbines and solar panels just to keep the old fossil gas pipelines running.
Science AP 23rd Oct 2020 read more »
Tom Baxter: The UK’s Hydrogen Task Force recently published a report that claimed investing in hydrogen could unlock £18bn in Gross Value Added by 2035. On the face of it an impressive number and one that caught the eye of the media and energy commentators including Energy Voice. The contributors to the report included fossil companies, hydrogen boiler manufacturers and gas grid operators. As many Energy Voice readers will be aware I believe hydrogen is being over-sold by vested interests. Fossil companies, hydrogen boiler manufacturers, hydrogen producers and gas grid operators have a business model where pushing hydrogen is an understandable position.
Energy Voice 26th Oct 2020 read more »