Diesel generator fuel theft — detection, prevention and monitoring
DG fuel theft is detected by correlating fuel-level sensor data with kWh output. A gap between expected fuel burn (kWh × specific fuel consumption) and actual tank drop indicates pilferage. Enlog's DG efficiency product reports this in real time and sends alerts.
Common DG fuel-theft patterns
- —Siphoning during refuelling (pre-delivery or at the tank).
- —Short-running the DG under load to mask waste.
- —Under-billed operator hours.
- —Leakage from return lines and filters.
- —Manual dip-stick errors and manipulation.
How IoT DG monitoring catches it
A DG controller reports engine hours and kWh output. A tank-level sensor reports fuel drop. For a calibrated DG, specific fuel consumption (SFC, usually 0.23–0.28 litres/kWh) is known. Any deviation beyond ±5% triggers an alert. Over a year, this typically saves 6–12% of fuel cost.
Frequently asked questions
Yes — for leak-grade accuracy. Ultrasonic or capacitive tank sensors work well. For quick-install setups, fuel-flow meters on the supply and return lines are an alternative.
Extremely — towers are one of the worst-affected use cases. Enlog's solution is deployed on thousands of sites across hotels, malls, hospitals and telecom.