With massive investment promised in low carbon technologies, we are seeing great claims for a whole range of technologies. It is important to look closely at these. Recently, there has been particularly intense interest in the potential of hydrogen as a low carbon fuel. There are two main ways to produce hydrogen. The first is by electrolysis. If the electricity that is needed to power this process is from a renewable source, it produces genuinely zero carbon hydrogen, albeit, through expensive and inefficient use of electricity. The second is by the “reformation” of natural gas and then capturing the carbon dioxide that is emitted from this process. The problems with the second one are that technologies have never been developed that can come close to eliminating the emissions involved in extracting and transporting the natural gas “raw material” or that can capture all the emissions from the reformation process. Once gas reformers are built, they will last for decades.
Yorkshire Post 26th July 2021 read more »