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Burj Khalifa is the tallest building in the world, and the magnificent centerpiece of Downtown Dubai, a new, world-class destination. Bringing Burj Khalifa to life required a combination of visionary ideals and solid science. In the process, the project amassed an awe-inspiring number of facts, figures, and statistics.

World Records At over 828 metres (2,716.5 feet) and more than 160 stories, Burj Khalifa holds the following records:

Tallest building in the world

Tallest free-standing structure in the world

Highest number of stories in the world

Highest occupied floor in the world

Highest outdoor observation deck in the world

Elevator with the longest travel distance in the world

Tallest service elevator in the world

The electricity consumption is expected to peak at 50 MVA, or the equivalent of 500,000 100-watt bulbs burning simultaneously.  In one of the region's landmark sustainability initiatives, Burj Khalifa, the world's tallest building, is tapping solar power for meeting a bulk of the water heating requirements of residents. A perfect complement to the sustainable development initiatives spearheaded by the UAE, Burj Khalifa uses solar panels to heat 140,000 litres of water every day, which will be distributed to homes and commercial entities within the tower. The solar powered water brings energy savings equivalent to 3,200 kilo watts per day and 690MWh of energy per annum.The thermal energy initiative at Burj Khalifa highlights Emaar's commitment to partner in the Government's sustainable development goals, according Ahmad Al Matrooshi, Managing Director - UAE, Emaar Properties.

The solar panels of Burj Khalifa serve as solar collectors, as against photovoltaic electricity generation technology. Located on roof of The Offices, the annexure of Burj Khalifa, 378 collector panels, each 2.7 sq m in area, can heat the entire 140,000 litres of water in approximately 7 hours of day time solar radiation.

Among other key sustainable energy and water use measures, the condensate from all the air-conditioning equipment in Burj Khalifa is reclaimed to cool the potable water from Dubai Electricity '&' Water Authority. The condensate is then collected in an on-site irrigation tank and used for tower's landscaping. When operational, this system will provide about 15 million gallons of supplemental water per year.

The tower's water system supplies an average of 946,000 litres (250,000 gallons) of water daily.

At peak cooling, Burj Khalifa will require about 10,000 tons of cooling, equal to the cooling capacity provided by about 10,000 tons of melting ice.

Dubai's hot, humid climate combined with the building's cooling requirements creates a significant amount of condensation. This water is collected and drained in a separate piping system to a holding tank in the basement car park.

The condensate collection system provides about 15 million gallons of supplement water per year, equal to about 20 Olympic-sized swimming pools.

The condensate collection system provides about 15 million gallons of supplement water per year, equal to about 20 Olympic-sized swimming pools.

The tower's peak electrical demand is 36mW, equal to about 360,000 100 Watt bulbs operating simultaneously.