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Hydrogen suffers from an abundance of hype, particularly about what it can be used for in the energy transition. Wild claims for the application of hydrogen, with little basis in current science and commercial reality, have worked to obscure the realistic opportunities for putting truly clean hydrogen to work here and now
Beneath the noise, hydrogen trains have been catching on.
GREEN HYDROGEN
Production of hydrogen via renewables-powered electrolysis could be an economical option along rail routes
ALTERNATIVE TRAVEL
Hydrogen is also being tested within the aviation and shipping sectors where there are few other alternatives
KEY QUOTE
Fuel cell hydrogen trains make economic sense above all when they are used on longer and non-electrified routes of over 100 kilometres
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A new transmission line across the Baltic Sea shows that a more integrated European power network is not only steadily evolving, but that innovative approaches to infrastructure design can bring down the cost of the energy transition.
Without a European grid up to the task of not only meeting more demand for electricity, but also assimilating it from distributed renewables, green electrification of heating and transport is stymied from the start. Decarbonisation requires new infrastructure, yet the public is having none of it.
Three concerns are said to be hindering the uptake of electric passenger cars—high purchase cost, fear of a flat battery, and lack of charging infrastructure. But cost has fallen, the range of car batteries now rivals that of a full tank of fuel and recharging a depleted battery when the need arises is proving to be easier than expected
Denmark has led the way on decarbonisation of heating, with a rapid transition away from fossil fuels aided by its large scale adoption of heating networks over the past 40 years. Instead of exchanging individual heating appliances in every home and commercial building, the Danes are centrally converting their heat networks to renewable energy, saving citizens a pile of money in the process
It is the affordability of renewables that makes direct and indirect electrification of heating, transportation and some industrial processes possible. Ridding the world of carbon pollution is no longer a pipedream, but a job to get done
As the United States legislates for higher shares of renewables, the development of its straggling and disjointed grid network to match its clean energy ambitions is lagging behind
Cement and steel manufacturing are two of the most carbon intensive industries in the world. Electrification can play a role in decarbonising both, though technology innovation is expensive and removing all emissions from the processes is a tall order
Decarbonisation of heating requires switching from systems and appliances that combust fossil fuels to those that rely on renewable energy. Nowhere is the switch more challenging to achieve for existing building stock than in the UK. If it can be done there, it can be done anywhere
No matter how much wind and solar power is generated, the energy transition cannot be achieved without a built-for-purpose electricity infrastructure. Gaps in the interconnections of Europe’s grid network and lack of capacity on the wires where it is needed most will halt green electrification of energy.
