Dubai will soon be home to the world’s largest concentrated solar power plant.
The Dubai Water and Electricity Authority (DEWA) has announced the second phase of a massive solar project located in the Mohammed bin Rashid Al Maktoum Solar Park. According to a press release, the park is the largest single-site project to generate electricity from solar energy in the world, based on an independent power producer model.
The 13-megawatt first phase of the project has been operational since October 2013 and the 200-megawatt second phase will be operational by April 2017. The facility will ultimately produce 1,000 megawatts by 2020 and 5,000 megawatts by 2030, which will provide power for 800,000 homes. The solar park will help reduce 6.5 million tonnes of carbon emissions annually, the release said.
The project easily trounces the capacity of the world’s current record-holder, the Noor-Ouarzazate plant in Morocco which will have a 580-megawatt capacity by 2018.
DEWA has already received five bids from international companies for the Mohammed bin Rashid Al Maktoum Solar Park’s 800-megawatt third phase, with the lowest bid at USD 2.99 cents per kilowatt, a record-low price for solar power.
The ambitious project is part of the Dubai Clean Energy Strategy 2050, which aims to provide 7 percent of the emirate’s total power output from clean energy sources by 2020, 25 percent by 2030 and 75 percent by 2050, Saeed Mohammed Al Tayer, DEWA CEO and managing director, said in a statement.
The project is called a “concentrated solar plant” because it consists of a large number of movable mirrors, or heliostats, that can follow the sun’s path and harness sunlight to melt salt. The molten salt stores energy and can be used to power a steam turbine, allowing for energy production even when the sun isn’t shining.
“An important advantage of [concentrated solar power] is that thermal heat, which is used to produce electricity, can be stored easily, which makes it possible to produce electricity after sunset,” Al Tayer said. “The plant will have several thousand heliostats located around a tower that receives the radiation reflected by the heliostats which follow the sun’s movement. The heat-transfer fluid is then used to power the steam turbine to generate electricity.
“The project will use thermal storage for 8-12 hours daily, taking into account technical and economic factors. This will contribute to improving the effectiveness and efficiency of production and meet the requirements of the electricity grid. This in turn, will provide sustainable world-class energy supply for everyone in terms of availability and reliability, and support the sustainable development of the emirate. It will contribute to making Dubai the city with the lowest carbon footprint in the world by 2050.”
Al Tayer said that DEWA is working to diversify Dubai’s energy mix to include 61 percent from natural gas, 25 percent from solar energy, 7 percent from coal and 7 percent from nuclear power by 2030. The reliance on clean energy sources will be increased incrementally to touch 75 percent by 2050, he added.