The engine itself is being tested by rolls—royce, but the project's being supported and part—funded by easyjet, which believes hydrogen power is a major part of its future. the cost of carbon is only going in one direction — it's going up, whether it's through regulation and taxation, whether it's just the price of fuel, as we've even see more recently so, you know, this is an investment that's notjust doing the right thing for the planet but, actually, from a business perspective, makes a lot of sense as well. the hydrogen being used in the test is obtained from water using electricity ...