Sub-metering is the implementation of a system that allows a landlord, property management firm, condominium association, homeowners association, or other multi-tenant property to bill tenants for individual measured utility usage.

Organizations can monitor, control, and manage energy usage by collecting detailed information about operations. One of the most cost-effective methods is sub metering, which can be used to monitor energy usage and power consumption for individual tenants, departments, and pieces of equipment or other loads to account for their actual energy usage.