1. The Specific Fuel Consumption (SFC) Metric
Diesel fuel accounts for 65% to 75% of total operating expenses for private power utilities and mini-grids. The primary metric of generator health is Specific Fuel Consumption (kWh produced per Liter):
Generator_Efficiency = Total_Metered_kWh_Delivered / Total_Diesel_Liters_Burned
3.3 – 3.8 kWh/LOptimal Range: Prime load (70–80% load factor), healthy injectors, and turbocharger efficiency.
2.8 – 3.2 kWh/LSub-Optimal: Light loading (wet stacking), line resistance losses, or minor fuel siphonage.
< 2.8 kWh/LCritical Alert: Active diesel theft, injector leakage, bypass lines, or faulty master totalizer meters.
2. Standard Diesel Consumption Benchmarks by kVA Rating
PG Unite automatically audits your logged fuel fill-ups against manufacturer standard performance curves:
| Generator Rating | 50% Load (L/hr) | 75% Load (L/hr) | 100% Load (L/hr) | Expected kWh/L |
|---|---|---|---|---|
| 100 kVA (80 kW) | 12.5 L/hr | 17.8 L/hr | 23.6 L/hr | 3.38 kWh/L |
| 250 kVA (200 kW) | 29.0 L/hr | 42.5 L/hr | 56.0 L/hr | 3.53 kWh/L |
| 500 kVA (400 kW) | 54.0 L/hr | 79.0 L/hr | 105.0 L/hr | 3.80 kWh/L |
| 1,000 kVA (800 kW) | 105.0 L/hr | 155.0 L/hr | 208.0 L/hr | 3.85 kWh/L |
3. Automated Fuel Theft Defense in PG Unite
Tank Level Drop Anomaly Detection
If the fuel level in your bulk storage tank decreases during shutdown hours or decreases faster than current kW generator output warrants, an immediate WhatsApp alert is triggered to the owner.
Delivery Invoicing Reconciliation
Match fuel tanker delivery notes against physical ultrasound tank level rise to ensure 100% of paid liters actually enter the tank.