Is there an industry standard definition for "load"?
Power is an instantaneous value, a singular moment in time. Energy is power across a time unit. There is a lot of misuse of the term "power" because, for example, we refer to the Utility as the "Power Company", ergo the stuff they give us is power. But what we actually use and PAY FOR is energy.

Load is simply the work being performed by that energy, a component of the energy consumption, because energy consumption can be defined as load + losses.