Definition: Transport refrigeration unit powered by electricity instead of diesel engine. Power source can be vehicle batteries, shore power, or dedicated refrigeration batteries.
Power Sources:
- **Vehicle electrical system**: 12V/24V for small units, limited capacity
- **High-voltage battery pack**: 400-800V systems, several hours runtime
- **Shore power**: 220V/380V connection when parked
- **Hybrid**: Combination of diesel and electric
Advantages:
- Zero direct emissions (suitable for indoor loading, urban restrictions)
- Quieter operation than diesel TRU
- Lower operating cost (if electricity cheap)
- Reduced maintenance (no diesel engine servicing)
Disadvantages:
- Higher initial cost (2-3x diesel TRU cost)
- Limited range (battery systems)
- Charging infrastructure required
- Battery degradation over time
- Reduced capacity in extreme heat (battery and compressor limitations)
Best Applications:
- Urban last-mile delivery
- Indoor facility operations
- Short-haul routes with frequent charging
- Emission-restricted zones
Cost Premium: R150,000-400,000 additional over diesel TRU (depending on capacity and battery size)
Related Terms: Battery-Powered Refrigeration, Diesel TRU, Zero Emission, Sustainability
Find Equipment: Electric refrigeration system suppliers