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In the first nine months of implementing the directives (April to December 2011), DUBAL saved 6,942,760 kWh. A further 4,458,316 kWh has been saved in the first six months of this year (January to June 2012), bringing the total savings over the 15-month period to 11,401,076 kWh, which as reduced CO2 emissions at DUBAL by 5,701 metric tonnes.
DUBAL's Tayeb Al Awadhi (Vice President: Power & Desalination) says that the four 'quick wins' for energy conservation identified by the DSCE are proving effective at DUBAL. "We have fully implemented the directive to set air-conditioning thermostats to 24°C during working hours and 27°C outside working hours; as well the directive to turn off all non-essential lights after working hours. We are also on track to achieve the third directive, namely to change to energy efficient lighting, where our internal target is to complete 50% of the changeover by the end of 2013. Overall, we are well placed to achieve total energy-savings of 22,317,240 kWh per year by 2013."
The DSCE directives complement DUBAL's ongoing efforts to minimize the power consumption of its operations. For example, the extremely energy-intensive process to reduce alumina to primary aluminium is continually being enhanced so as to be more energy efficient. The energy consumption in the potlines of 14.71 MWh/tonne aluminium in 2011 represented a 110,000 MWh savings over the 14.82 MWh/tonne aluminium recorded in 2010. The company has implemented numerous energy-savings projects over the years while others are being considered for implementation in the near-term. This approach reflects the energy-conscious culture that DUBAL, which is encouraged through targeted communications using appropriate channels - including a dedicated category in DUBAL's well-established Suggestion Scheme.
"At DUBAL, being energy-conscious is a vital component of our corporate responsibility. By lowering DUBAL's power consumption, we can help minimize the rate of resource depletion; while simultaneously reducing the levels of greenhouse and other gases emitted to the atmosphere," explains Al Awadhi. "It's also an operating imperative for long-term sustainability. Given the high cost of energy worldwide, reducing our consumption of this major resource is key to maintaining DUBAL's competitiveness in the global aluminium industry."