Cooling is the biggest line on almost every electricity bill in the Kingdom. The good news: most buildings can cut it by a third or more without sacrificing comfort. Here is the order we recommend, based on payback in Saudi conditions.
1. Pre-cool your chillers and condensers (payback 1.5–2.5 years)
Air-cooled chillers and condensers lose capacity and burn electricity when entering air exceeds 45°C. A PreCooll adiabatic wet wall drops the entering air by 15–25°C, cutting chiller energy by 20–40% and peak demand by up to 30%. DAMAC EDGNEX measured 35%; PSAU 20%.
PreCooll chiller pre-cooling →
2. Replace DX with Oxycom IDEC where fresh air is needed (up to 90% less electricity)
Factories, warehouses, showrooms, halls, schools and kitchens need lots of fresh air — and pay a fortune to cool it with compressors. IDEC (Indirect Direct Evaporative Cooling) supplies 100% fresh, filtered, cool air for fan-and-pump electricity only. eXtra Al Worood cut its cooling bill by 66%.
3. Fix kitchen make-up air (fast payback for restaurants)
Every m³ your hoods exhaust must come back in. A DX fresh-air unit is the most expensive way to cool that air; an IntrCooll make-up air unit is a fraction of the capital and running cost.
4. Restore your coils (Enercoat coatings, up to 20%)
Dust, heat and corrosion degrade every coil in the Kingdom. A thermal coil coating restores performance, protects against corrosion and extends equipment life, with measured before/after savings.
5. Choose VRF for new or replaced comfort cooling
VRF modulates to real demand zone by zone and avoids the on/off cycling of ducted splits; for villas, compounds, offices and hotels it is usually the most efficient refrigerant-based choice.
6. Find the hidden waste with analytics (FDD)
Stuck valves, drifting sensors, simultaneous heating and cooling and equipment running out of schedule waste 10–20% in most large buildings without anyone noticing. Fault detection and diagnostics on your BMS data ranks what to fix first.
7. Design it right the first time
The cheapest kWh is the one the design never needed: correct loads, the right system for the space, options compared on capital and running cost.
Related service
PreCooll Chiller Pre-Cooling
Oxycom PreCooll adiabatic pre-cooling for air-cooled chillers, condensers and dry coolers: 15–25°C cooler entering air, 20–40% less chiller energy, capacity restored on the hottest days.
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