We’ve had a recurring puzzle at one of our larger facilities where our internal sub-metering data consistently shows a lower total energy consumption than the utility’s main revenue meter for the same billing period. The discrepancy isn’t massive, but it’s enough to raise questions and impact our budgeting accuracy. Our sub-meters are regularly calibrated, and we account for internal generation and known losses. Despite this, the utility’s bill remains persistently higher than our reconciled internal figures. It creates a noticeable gap between our expected and actual energy costs each month.How do you approach reconciling these types of discrepancies in your operations? What are your go-to checks when facing such a mismatch between internal consumption data and the official utility statement?