Marketing is the study and management of exchange relationships. Marketing is used to create, keep and satisfy the customer. With the customer as the focus of its activities, it can be concluded that Marketing is one of the premier components of Business Management - the other being innovation.
By the way, if anyone here is in advertising or marketing...kill yourself...you're the ruiner of all things good...you are Satan's spawn, filling the world with bile and garbage...kill yourself.
The transition from a fossil fuel-based energy system to a renewable hydrogen-based system will take a long time. During this transition, research and fuel cell (FC) technology improvements towards performance benchmarks set by EU-funded scientists can pave the way.