Definition
A factory energy management information system integrating energy metering, data governance, energy consumption analysis, and anomaly handling.
In detail
FEMS establishes correspondence between main tables, sub-tables, equipment, and business status, forming interpretable data through clear units, multipliers, time zones, sampling, and aggregation rules. Charts can help locate anomalies, but cannot prove energy savings based on a single dashboard; measurement gaps, cumulative meter resets, equipment boundary changes, and production conditions all need governance, then use the adjusted baseline to verify energy savings.
Example in practice
A workshop's curve showed zero energy consumption for two consecutive periods; the responsible person first checked collection logs and equipment operation records, found communication interruption, and registered it as missing data; after restoring collection and completing reconciliation, analyzed standby energy opportunities without counting zero values as savings.