01
From equipment rating to an energy promise
I would use a storage-duty example to examine how an equipment description becomes a commercial obligation. The session begins with the distinction between nominal energy, power and usable delivery at an agreed boundary. Participants would consider why a familiar four-hour label can conceal different assumptions about age, reserves, conversion and auxiliaries. The aim is to make the decision understandable without turning the audience into battery-design specialists. I would then connect the technical alternatives with the questions commercial and finance colleagues need answered: what service is being offered, what changes if the duty changes and which costs remain unresolved. A second example from industrial heat would show why operating conditions belong beside a performance ratio. The discussion would retain the limits of the fictional studies, including the difference between a design assumption and observed service. Attendees would leave with questions they can use when reviewing a proposal, rather than a universal equipment specification or a promise of a particular investment outcome.