Cold storage facilities in Malaysia cut electricity costs by monitoring refrigeration 24/7, controlling to product temperature instead of air temperature, optimising defrost and evaporator fans, fixing doors and seals, maintaining condensers, and adding rooftop solar. Infinergi uses Eniscope sub-metering, CUES product-temperature probes and Air Temp sensors to cut waste while protecting stock.
Why cold storage is an energy problem
In cold storage, refrigeration runs 24 hours a day, 365 days a year and is usually the largest share of the electricity bill. Small problems such as a door left ajar, iced-up evaporators or a dirty condenser make compressors work harder for weeks before anyone notices. Malaysia's heat and humidity make it worse.
Proven measures for cold rooms and warehouses
| Measure | What it does |
|---|---|
| 24/7 refrigeration monitoring | Eniscope sub-metering per compressor and cold room flags abnormal consumption immediately |
| Product-temperature control (Eniscope CUES) | Controls refrigeration on simulated food temperature instead of air temperature, cutting unnecessary cycling |
| Temperature & door alerts (Air Temp sensors) | Protects stock and catches doors left open or failing seals |
| Defrost & evaporator fan optimisation | Defrost on demand rather than on a fixed timer; slow fans when not needed |
| Condenser maintenance & head pressure | Clean, well-ventilated condensers and optimised head pressure reduce compressor work |
| Doors, curtains & insulation | Strip curtains, rapid-roll doors, door discipline and seal replacement |
| Variable speed compressors & fans | Match capacity to load |
| Rooftop solar + battery | Generates power when refrigeration demand peaks and shaves maximum demand |
Proven in refrigeration-heavy businesses
The same Eniscope technology has delivered an average 11.5% saving across 120+ 7-Eleven stores in Denmark and an average 18% saving across 105 KFC Malaysia outlets, where refrigeration was a key source of waste. Results like these come from finding faults and schedules that waste energy, without replacing equipment.
How to start
- Free audit of your TNB bills and refrigeration plant.
- Install monitoring on compressors and cold rooms in hours, with no loss of cooling.
- Act on the data: fix faults, tune controls and defrost, then plan upgrades and solar.
- Fund it from savings with zero CAPEX where you qualify.