I admire Germany for doing so much to reduce greenhouse gases. Too bad that the initiative has left them dependent on the import of natural gas –half of it from Russia.
Olaf Scholz, Chancellor of Germany, came to Canada and signed a “Declaration of Intent” that would see hydrogen exported to Germany by 2025. Dream on.
Talk of hydrogen during Scholz’s visit has set Newfoundland abuzz with plans to build wind turbines to generate electricity and produce green hydrogen for export. But no turbines have been built, nor plants to produce hydrogen from electricity, and no facilities to convert the hydrogen into ammonia for transport.
Scholz also wants our liquefied natural gas. The chances of exporting of LNG from the east coast are close to zero.
First of all, there are no LNG export terminals on the East Coast. And even if there were, there is no pipeline to supply them. In fact, there are no operational LNG export terminals in all of Canada –the only one under construction will ship LNG from Kitimat, B.C., to Asia.
Another idea being floated is the dual use of LNG plants for compressing hydrogen. That’s also unlikely say Johanne Whitmore, chair in energy sector management at HEC Montréal and Paul Martin, a chemical engineer:
“However, hydrogen-ready LNG terminals do not actually exist today because both gases have different properties which require different infrastructure. Repurposing existing infrastructure would require extensive retrofitting at great expense. New infrastructure will take years to build, which won’t help Europe meet near-term energy needs, or abate its emissions (Globe and Mail, August 8, 2022).”
Hydrogen can be made from natural gas or electricity. When made from natural gas, it is classified as “grey” if none of the carbon produced in the process is sequestered and classified as “blue” if at least 90 per cent of the carbon is captured. When hydrogen produced from renewable electricity sources is classified as “green.”
It takes a lot of energy to make hydrogen. The use of natural gas to make hydrogen is more polluting than LNG without carbon sequestration. And most of the hydrogen produced in Canada is grey. Canada’s ambitious Shell Quest sequestration project has carbon capture rates of less than 50 per cent, well below the threshold that would classify it as blue.
Exporting liquid hydrogen is not only technically challenging, there are huge energy losses using natural gas production (30 per cent, compared to LNG’s 8 per cent).
“As academics and engineers with decades of experience in energy,” say Whitmore and Martin, “we are concerned that Canada’s dash to build new LNG infrastructure in the hope of exporting hydrogen is not only scientifically baseless, but risks locking both Canada and Germany into a fossil-based economy.”
Newfoundland’s concept would overcome the shipping problem, somewhat, by transporting hydrogen as ammonia. But more energy would be lost in converting ammonia back into hydrogen at the end.
Prime Minister Justin Trudeau was dreaming when he told a G7 in June that Eastern Canada LNG infrastructures could be expanded on the basis “they could then be used for hydrogen exporting,” thereby “keeping it consistent with Canada’s longer term climate goals.”
Dreams and hydrogen have one thing in common: they are both lighter than air and float away.
Eye View 