You don't know the future cost of energy (otherwise you'd probably be cornering the energy futures markets right now). But it's a safe bet energy prices will continue to rise.
Higher energy prices mean there is more value than ever in tracking your power consumption. Submetering systems allow you to gain a more precise understanding of what drives usage. You can add metering to track at the room, equipment, subsystem or end customer levels. You can then use the information to accurately allocate costs, identify and eliminate waste, optimize usage and plan for future needs.