Why Your DEWA Bill is So High (And How to Fix It)

Opening your DEWA bill during summer can be a shock. For a typical 2-bedroom apartment in Dubai, electricity bills can reach AED 800-1,500 per month between June and September. But much of that cost is avoidable. Understanding what drives your energy consumption and making targeted changes can reduce your bill by 20-30% without sacrificing comfort.

Where Your Electricity Goes

In a typical Dubai home, electricity consumption breaks down roughly as follows:

• Air conditioning: 60-70% — This is by far the biggest consumer
• Water heating: 10-15% — Electric water heaters run frequently
• Lighting: 5-8% — Depends on bulb type and usage habits
• Appliances: 5-10% — Fridge, washing machine, dryer, dishwasher
• Electronics: 3-5% — TVs, computers, chargers

Since AC accounts for the vast majority of your bill, that is where the biggest savings opportunities lie.

AC-Related Causes of High Bills

Dirty or Clogged Filters

A dirty AC filter restricts airflow, forcing the compressor to work harder. This alone can increase energy consumption by 15-25%. Check your filters monthly and clean or replace them every 1-3 months.

Low Refrigerant

When refrigerant levels drop due to leaks, the system cannot cool effectively. It runs longer cycles trying to reach the set temperature, consuming more electricity. If your AC is blowing lukewarm air, have a technician check the refrigerant level.

Dirty Coils

Dust and grime on evaporator and condenser coils reduce heat transfer efficiency. An annual AC deep clean addresses this issue and can improve efficiency by 10-15%.

Thermostat Settings

Every degree below 24°C increases your energy consumption by approximately 3-5%. Setting your thermostat to 24°C instead of 20°C can reduce your AC energy use by 15-20%. Use the timer function to reduce cooling when you are sleeping or away.

Duct Leaks

Leaking ductwork means cooled air is escaping into wall cavities and ceiling spaces instead of reaching your rooms. A duct inspection and sealing service can identify and fix these leaks.

Non-AC Causes of High Bills

Water Heater

Traditional tank water heaters keep water hot 24 hours a day, even when you do not need it. Consider:

• Turning off the heater when not in use, especially during summer when tap water is already warm
• Setting the temperature to 50-55°C instead of the default 60-70°C
• Insulating the hot water pipes

Old Appliances

Older refrigerators, washing machines, and dryers consume significantly more energy than modern energy-rated models. An old fridge can use twice the electricity of a new energy-efficient model.

Standby Power

Electronics on standby (TVs, gaming consoles, phone chargers) consume power continuously. While individually small, collectively they can add AED 20-40 to your monthly bill.

Lighting

If you still have incandescent or halogen bulbs, switching to LED can reduce your lighting costs by 75%. LED bulbs also produce less heat, reducing the load on your AC.

Practical Steps to Reduce Your Bill

Immediate Actions (Free):

1. Set your AC to 24°C
2. Turn off water heater during summer daytime
3. Unplug chargers and electronics when not in use
4. Close curtains and blinds during peak sun hours (10am-4pm)
5. Run washing machine and dishwasher during off-peak hours

Low-Cost Improvements (Under AED 500):

1. Replace all bulbs with LEDs
2. Add draft excluders to doors
3. Apply UV-blocking window film to sun-facing windows
4. Install a smart thermostat or timer for your AC
5. Clean your AC filters yourself monthly

Investment Actions (AED 500-5,000):

1. Schedule professional AC servicing quarterly
2. Install a tankless water heater
3. Upgrade to energy-efficient appliances
4. Add blackout curtains to sun-facing rooms
5. Have ductwork inspected and sealed

Understanding Your DEWA Tariff

DEWA uses a slab-based pricing system where the rate per kilowatt-hour increases with consumption:

• 0-2000 kWh: 23 fils/kWh
• 2001-4000 kWh: 28 fils/kWh
• 4001-6000 kWh: 32 fils/kWh
• Above 6000 kWh: 38 fils/kWh

This means that reducing your consumption from the higher slabs saves you more per unit than reducing from the lower slabs. Even small efficiency improvements can drop you into a lower tariff slab, amplifying your savings.

Conclusion

High DEWA bills are not inevitable. A combination of regular AC maintenance, smart habits, and targeted improvements can reduce your electricity costs by 20-30%. The single most effective action is scheduling regular AC maintenance to keep your system running efficiently. ProKeep offers AC service plans that pay for themselves in energy savings. Book your AC efficiency check today.