REASSIGNABLE ELECTRICAL APPARATUS AND METHOD FOR CONNECTING ELECTRIC VEHICLE SUPPLY EQUIPMENT (EVSE) AND ENGINE BLOCK HEATERS WITHOUT MARKUPS ON ELECTRICITY USAGE FOR MULTIFAMILY OR MULTI-UNIT BUILDINGS

An apparatus and method are disclosed for selectively assigning shared electric loads in multi-unit buildings, such as electric vehicle supply equipment (EVSE) and engine block heaters, directly to individual tenant utility meters without sub-metering, third-party billing, or markups on electricity usage. An electrically rated enclosure defines a toollessly accessible assignment compartment that houses multiple keyed source receptacles, each permanently wired to a respective tenant meter, and multiple keyed load receptacles wired to external loads. Removable keyed assignment links interconnect selected source and load receptacles while preserving protective grounding and preventing mis-mating. Optional locks, blocking devices, and tamper-logging features provide administrative control over reassignment. Current sensors and a programmable controller enable monitoring, dynamic load management, demand-response operation, and overload prevention while ensuring that consumed energy is transparently billed to the tenant accounts associated with the selected source receptacles.