DUBAI — The Dubai Electricity and Water Authority (DEWA) recently announced that its energy conservation programmes with different categories of clients reduced consumption of electricity and water worth Dh97million in 2009.
The DEWA’s Senior Manager for Demand and Tariff Management at its Customer Services Department, Amal Koshak, talks to Khaleej Timesabout how the government utility company succeeded in reducing electricity consumption by more than 201 million kwh and water by one billion and 38 million gallons in a year. She also speaks about what DEWA is
doing this summer to augment the energy-conservation efforts.
Q: Could you explain the DEWA’s energy conservation strategy and what it has been doing to achieve its goals?
A: The DEWA has its strategy to raise awareness on conservation and the environmental impact of electricity and water consumption. The DEWA has implemented a number of water conservation initiatives over the past five years including programmes that aim to specifically reduce consumption at homes, schools and businesses.
The DEWA launched the Best-Consumer Award to encourage and promote best consumption behaviour among customers within the residential sector, to achieve the largest percentage in their utility consumption savings. The sixth round was recently completed whereby 13 environmentally-conscious residential customers were awarded cash prizes for significantly reducing the use of water and electricity at
their residences. The DEWA also initiated the ‘Conservation Award for A Better Tomorrow,’ which is an annual award targeting schools and universities in Dubai. DEWA also organised several activities such as lectures, workshops and competitions among students. Students, teachers and management of these educational institutions were educated on the required procedures to conserve electricity and water. All these were meant to serve one critical mission of the DEWA — to trigger and initiate the culture of conservation amongst young minds that will be responsible for all things in the future and make them realise that resources available are precious and hence they should be used and consumed rationally in order to make them available for
the coming generations. Activities and campaigns for educational institutions are followed by significant awards for top-ranking schools that achieved electricity and water savings in their buildings as well as for students who achieved savings at their homes.
Thus, the DEWA is educating students on electricity and water conservation and its role in maintaining the natural resources and protecting the environment. In the meantime, it is encouraging them to implement these measures in their schools and homes by awarding them.
Q: So, how different is the DEWA’s awareness campaign which started in summer?
A: The campaign demanding less consumption during peak period started one year ago and pleaded all customers to stop using unnecessary appliances and equipment during peak period, which is between 12noon and 5pm. This is called the load shifting campaign, and the main purpose or objective is to educate the general public about electricity peak load, the time of the day when there is the highest demand for electricity.
Q: What are the main messages of this campaign?
A: The DEWA’s ‘Peak Load’ campaign highlights the simple initiatives individuals can do to decrease electricity consumption. For example, switching off electrical appliances such as irons,
washers and dryers, dish washers and ovens during peak hours as well as using moderate A/C temperature (24degrees C) in the occupied areas and raising it to 28degreesC or switching it off in the unoccupied areas can make a significant difference in power savings.
Through this campaign, we want to inform consumers that energy saving, load shifting and improved power factors are beneficial first for them in terms of bill reduction and system reliability. Also, these measures protect the environment.
Q: What more is the DEWA planning to do to reducing power consumption during summer?
A: This year, we are launching a new campaign on the power factor the main purpose of which is to improve the power factor at the premises of bulk customers such as those in industrial and commercial sectors.
Power factor represents the relation between active and apparent power, between the ranges of 0.0 to 1.0 with the high value being the better. Through this campaign, we will encourage bulk customers to improve their power factor to be within the permitted range 0.9 lagging to 0.1 and to persuade them to make required maintenance for their capacitor banks for the same purpose.
Q: How is the DEWA reaching out to the target consumers in these campaigns?
A: We have both external and internal communication methods for such campaigns. We use conventional print and electronic media and marketing collaterals like flyers, brochures, posters and roll-ups. In our customer engagement programmes, we have outreach programmes and face-to-face communication. We are making visits to 22 government departments in Dubai and entering into agreements with them that support our energy conservation campaigns.
Apart from lectures and workshops, we also use the social media like SMS, facebook and YouTube to reach out to our customers. the DEWA’s portal www.dewag.gov.ae is a powerful tool that helps us send across the energy conservation messages. Internally, we use emails and our internal newsletter called Al Masdar.
sajila@khaleejtimes.com
For bulk consumers
- install suitable capacitor banks sized to loads to keep the power factor within the permitted range.
- carry out the required maintenance for capacitor banks and ensure they are in operation to keep the power factor within the permitted range.
- improved power factor reduces electrical losses in the internal networks, maintain equipments’ lifetime. Accordingly saving energy reduces emissions and protects the environment.
Did you know?
- the high electrical peak hours in Dubai are between 12 noon and 5 pm during summer.
- wasting energy during these hours necessitates DEWA to invest heavily to meet the growing demand; invariably more fuel is needed for producing electricity, for meeting such higher demand rates.
- turning off less-critical electrical appliances like electrical irons, washers and dryers, dish washers, water heaters and electrical ovens during electrical peak times and operating them during off-peak times leads to an efficient and reliable electrical system.
- air-conditioning represents 60 per cent of the load on electrical peak times. Reducing usage of appliances for air-conditioning reduces electricity bills
- if every customer turned the air-conditioning up from 20degreesC to 24degreesC during electrical peak time, it will lead to:
- avoiding the installation of about 300 megawatts electrical production units.
- saving 270 million kilowatts-hours per year worth Dh81 million, which is sufficient to provide 11,000 apartments with electricity for a whole year.
- saving approximately 160 thousand tons of emissions.
- energy consumption
of any appliance/equipment equals its electrical rating in kwh multiplied by the number of operating hours. The resulted energy will be in kwh. Therefore, energy saving depends on operating hours. For example, if an old window A/C with a capacity of 2 tonnes and
about 4 kW electrical capacity is switched off for 5 hours a day, the saved energy = 5 hours x 4 kW = 20 kWh/day.
Power-saving tips for summer
Residential customers
- don’t use home appliances such as washing machines and dryers during peak period from 12noon to 5pm. You may use them during other timings during the day.
- stop air conditioning in unoccupied rooms or at least raise the setting to 27oC.
- do not water plants during daytime. Do so at night or early morning.
- use drip irrigation for trees, shrubs and bushes.
- reset the flow of the automatic sprinkler systems according to the season to suit the needs of plants and lawn.
- fix all leaks in the washroom and in any other area of your home.
- close the tap while brushing your teeth or shaving.
- install aerators on taps and use a bowl or pan filled with water to wash fruits and vegetables instead of washing them under a running tap.
- turn off the tap while washing dishes (avoid leaving the tap running).
commercial customers
- control fresh air according to demand through CO2 sensors.
- stop irrigation during daytime and do it during night or early morning.
industrial customers
- maximise production outside peak period and minimise it during peak period (12noon– 5pm).
- carry out annual maintenance.
- carry out daily maintenance during peak period (12noon– 5pm).
- if there are only one or two shifts, re-arrange mode of operation to avoid operation during peak period during summer.