DEWA tariffs, cooling loads and what air conditioning costs a UAE home in 2026

DEWA charges residential electricity on four slabs from 23 to 38 fils per kWh

The official DEWA tariff page, checked on 13 September 2026, publishes the electricity and residential water slabs below. The electricity slabs apply to residential and commercial accounts. Fuel surcharge is a separate monthly amount; the September 2026 value should not be presented as a fixed annual rate.

Monthly electricity (DEWA, checked September 2026)	Electricity rate	Residential water per month	Water rate
0 to 2,000 kWh (green slab)	23 fils per kWh	0 to 27 cubic metres	AED 7.700 per cubic metre
2,001 to 4,000 kWh (second slab)	28 fils per kWh	27 to 54 cubic metres	AED 8.800 per cubic metre
4,001 to 6,000 kWh (orange slab)	32 fils per kWh	above 54 cubic metres	AED 10.120 per cubic metre
above 6,000 kWh (red slab)	38 fils per kWh	one cubic metre is about 220 imperial gallons

The slabs apply progressively. Industrial electricity has separate bands: AED 0.230/kWh up to 10,000 kWh and AED 0.380 above that. September 2026 fuel surcharges are AED 0.060/kWh and AED 1.100/m3. Published meter charges are AED 5, 6 or 35 for electricity and AED 5 or 7 for water, depending on meter type. DEWA states that 5 percent VAT applies. Other bill items must be checked on the account statement.

A Dubai DEWA bill runs from AED 300 for a studio to AED 4,500 for a villa in summer

A DEWA bill in Dubai in 2026 runs from AED 300 to 450 a month for a 400 square foot studio in summer to AED 2,500 to 4,500 a month for a 4,000 square foot five-bedroom villa, with winter bills at roughly half those figures, according to the Oliva guide to DEWA bills, which states that electricity consumption rises 40 to 70 percent from June to September. The guide adds the housing fee that tenants pay through the same bill, 5 percent of the annual rent divided into twelve monthly instalments, and a 5 percent late payment surcharge.

Home (Oliva, 2026)	Summer bill (AED per month)	Winter bill (AED per month)
Studio, 400 sq ft	300 to 450	150 to 250
1-bedroom apartment, 700 sq ft	500 to 750	250 to 400
2-bedroom apartment, 1,200 sq ft	700 to 1,100	350 to 550
3-bedroom apartment, 1,800 sq ft	900 to 1,400	450 to 700
3-bedroom villa, 2,500 sq ft	1,500 to 2,500	700 to 1,200
5-bedroom villa, 4,000 sq ft	2,500 to 4,500	1,200 to 2,000

The summer to winter ratio in that table is the cooling load made visible. A villa at 4,000 kWh in July, which lands at the top of the blue slab, pays AED 460 for the first 2,000 kWh and AED 560 for the second 2,000 kWh before surcharges, and the next 1,000 kWh of a hotter August cost AED 320 at the orange rate. The rising slabs are the reason a fit-out that reduces cooling load pays back faster in a large villa than in a studio: the saved kilowatt hours come off the most expensive slab first.

Air conditioning is about 60 percent of peak load and 65 to 70 percent of home electricity

Air conditioning represents about 60 percent of the load on DEWA's network during peak-time consumption, which runs from 12 pm to 6 pm, according to Amal Koshak, Senior Manager of Marketing Communications at DEWA, quoted by Gulf News on 15 September 2018, and DEWA's campaign asked customers to raise thermostats from 20 degrees Celsius to 23 or 24 degrees during those hours. The share inside the home is higher than the share on the network: The National reported on 23 May 2024 that air conditioning typically accounts for between 65 and 70 percent of the electricity used in homes across the Gulf, citing Professor Moncef Krarti, and that a 1 degree Celsius rise in temperature results in about 10 percent greater AC energy consumption, in an article on how the Gulf can cool its reliance on air conditioning.

Outdoor temperature sensitivity does not establish the saving from changing an indoor thermostat. The earlier version of this article incorrectly turned a reported relationship with temperature into a guaranteed 20 percent household saving. A project estimate needs measured consumption, operating conditions and a suitable energy calculation. The glazing and materials article discusses envelope decisions that affect heat gain.

Empower district cooling charges AED 0.568 per RT-hour plus AED 750 per RT per year

Empower, the district cooling provider, bills district cooling in two parts: a consumption charge of AED 0.568 per refrigeration ton (RT) per hour recorded by the unit's meter and billed in arrears, and a demand charge of AED 750 per RT per year billed monthly in advance according to the days in the month, according to the Empower charges explanation page. Empower's own worked example is a 6 RT unit: AED 4,500 of demand charges a year, and AED 387.50 for January (4,500 divided by 365 and multiplied by 31), payable whether or not the cooling runs.

The Empower page lists the smaller charges on the same account: meter maintenance at AED 50 for three months or AED 30 per month, a disconnection fee of AED 500, a meter testing fee of AED 160 if the meter proves accurate, a voluntary disconnection fee of AED 150 per instance, and 5 percent VAT on every charge. The page also records that DEWA has been authorised since 1 January 2011 to raise its tariff by 15 percent in each existing slab, and that district cooling companies pass DEWA tariff increases and the actual fuel surcharge on to their customers.

A tenant comparing a chiller-free apartment with a district cooled one should read the two Empower lines separately:

• The demand charge is fixed by the RT capacity allocated to the unit, so a 6 RT apartment carries AED 4,500 a year plus VAT before use.
• The consumption charge follows the meter, so the interior decisions that cut cooling load (glazing, shading, set point, fan coil maintenance) reduce this line only.
• The security deposit, connection charge and administration fee are one-off items on top of both lines.
• In a chiller-free lease the landlord pays the cooling; in a district cooled lease the tenant pays both Empower lines.

Why floor area alone cannot size a villa air-conditioning system

A villa cooling calculation must account for glazing, shading, orientation, insulation, ventilation, occupancy and the selected indoor and outdoor conditions. Cooling capacity and electricity consumption are different quantities: BTU/h describes a heat-transfer rate, while kWh on a DEWA bill records electrical energy over the billing period.

The previous version combined a 20 to 30 BTU/h per square foot assumption with 15 to 20 refrigeration tons for 3,000 square feet. Those numbers do not follow from one another. Using 12,000 BTU/h per refrigeration ton, the stated arithmetic gives 5 to 7.5 tons. That correction is a dimensional calculation, not a recommendation to size a villa from floor area.

Request the mechanical designer's room-by-room calculation and the equipment performance at the actual design conditions. A nominal capacity alone does not describe moisture removal, airflow, part-load operation or installation constraints. Compare the selected equipment and electrical demand with the approved design before purchasing.

How can a household compare bills before and after a fit-out?

Record the billing days and meter consumption before comparing money totals from different periods or attributing a change to a fit-out. Changes in fuel surcharge, occupancy, weather or billing-period length can alter a bill without any change in equipment efficiency. Keep district cooling charges separate from DEWA electricity, and keep one-off account charges separate from recurring consumption.

1. Record opening and closing meter readings and the billing dates.
2. Split electricity, water, district cooling and account-specific fees.
3. Compare similar operating conditions and note changes in occupancy.
4. Apply each electricity slab to the consumption within that slab.
5. Keep the dated tariff and fuel surcharge with the calculation.

Use the DEWA electricity worked examples for the slab arithmetic. Budgeting for the equipment itself belongs in the fit-out cost plan; a lower operating bill does not by itself prove a shorter payback period.