interesting links from external ....
https://keynumbers.com/#/public/model/lcoh-levelised-cost-of-blue-hydrogen-with-carbon-tax-7659
https://keynumbers.com/#/public/model/convert-hydrogen-kg-to-gj-9271
https://keynumbers.com/#/public/model/lcoh-forecast-green-hydrogen-western-green-energy-hub-6957