# How to Cut Your DEWA Bill in a Dubai Summer

Canonical: https://jobxdubai.com/knowledge-hub/housing/reduce-dewa-bill-summer-guide
Category: Housing & Real Estate
Updated: 2026-08-21
Source: JobXDubai Knowledge Hub

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Every July and August, the same shock lands in thousands of Dubai inboxes: a DEWA bill double the winter amount. Cooling is the culprit — air conditioning dominates summer consumption in most homes — which is also good news, because it means a handful of AC habits control most of the bill.

Here is what actually moves the number, based on DEWA's own guidance.

## The 24°C rule

DEWA recommends setting your AC to **24°C**. Every degree cooler adds **around 5 per cent** to consumption, so a household running at 20°C all summer is paying roughly a fifth more for cooling than it needs to. Pair the thermostat with ceiling or standing fans: moving air feels several degrees cooler, letting you hold 24°C comfortably.

Two more AC habits with outsized impact:

- **Clean the filters monthly in summer.** Clogged filters force the unit to work harder for the same cooling.
- **Replace units older than 10 years.** Modern four- or five-star ESMA-rated models cut cooling consumption by **up to 25 per cent**. If you rent, this is the landlord's job — worth raising at renewal.

## Habits that cost nothing

- **Avoid heavy appliances between 12pm and 6pm.** Running the washing machine, dryer and dishwasher outside peak afternoon hours eases both your bill and the grid.
- **Keep the heat out.** Curtains and blinds on sun-facing windows reduce the load your AC has to fight.
- **Switch on Away Mode when you travel.** DEWA's Away Mode feature manages consumption while you are on leave — most residents flying out for the summer never activate it.

## Find the leaks before they find your bill

Water leaks are the silent line item. DEWA's **High Water Usage Alert** notifies you of abnormal consumption, and its **Consumption Assessment Tool** in the app benchmarks your usage against similar homes. Check tanks, washing machine connections, kitchens, bathrooms, outdoor taps and even walls — a slow leak runs 24 hours a day.

While you are in the app, review your daily consumption graph. A flat overnight electricity baseline that seems high usually points to an appliance that never sleeps.

One reminder for newcomers: a chunk of your DEWA bill is not consumption at all. The 5 per cent municipality housing fee arrives on the same invoice — our [DEWA setup guide](/knowledge-hub/housing/dewa-setup-guide-dubai) breaks down what each line means.

## Key takeaway

**Set the AC to 24°C, clean filters monthly, keep heavy appliances out of the 12pm–6pm window, and activate Away Mode when you travel.** A 1°C thermostat change is worth about 5 per cent of consumption, and an ageing AC unit replaced with an efficient model saves up to a quarter of cooling costs.

## FAQ

### What temperature should I set my AC to in Dubai?

DEWA recommends 24°C. Each degree below that adds around 5 per cent to your consumption, and fans let 24°C feel cooler than it sounds.

### Why is my DEWA bill high even though I was away?

Check three things: whether Away Mode was activated, whether the housing fee makes up much of the total, and whether a water leak or always-on appliance kept running. The app's consumption graphs show exactly when usage happened.

### Do old AC units really cost more to run?

Yes. DEWA advises replacing units older than 10 years; efficient four- or five-star ESMA-rated models reduce cooling consumption by up to 25 per cent.

### Is district cooling billed by DEWA?

No. In many towers, chiller charges come from a separate provider such as Emicool or Tabreed. These tips help with the DEWA portion; for chiller buildings, thermostat discipline still cuts the cooling invoice.

## Further reading

- [DEWA setup: connecting power and water in your Dubai home](/knowledge-hub/housing/dewa-setup-guide-dubai)
- [Cost of living in Dubai 2026](/knowledge-hub/relocate/cost-of-living-dubai-2026)
- [Renting your first apartment in Dubai](/knowledge-hub/housing/renting-first-apartment-dubai-guide)
- [Dubai vs Sharjah: living and commute compared](/knowledge-hub/housing/dubai-vs-sharjah-living-commute)

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