Per-kWh pricing is a billing model where electricity is charged by each kilowatt-hour (kWh) a customer uses. It is a usage-based tariff: the more power consumed, the higher the bill. In utility systems, this model depends on accurate meter readings, correct rate tables, and consistent billing records.
In cyber security, per-kWh pricing matters because the metering and billing pipeline can be a target. Attackers may try to alter smart-meter data, manipulate APIs, or disrupt reporting to hide theft, create false charges, or confuse reconciliation. Defenders protect these systems with signed meter data, access control, logging, anomaly detection, and invoice-to-meter audits. Reliable per-kWh billing is not just a finance issue; it is part of the trust chain in connected energy infrastructure.