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It is the largest solar thermal project in the world in terms of installed capacity, investment size and molten salt heat reserve.
SHANGHAI, Nov. 30, 2022 /PRNewswire/ -- On Nov. 29 (Dubai time), Trough Unit No. 1 installation of Shanghai Electric's 700MW Solar Thermal & 250MW PV Plant in Dubai has successfully achieved the generation of electricity connected to the grid, marking an important milestone on the path of the company's entry into the renewable energy sector. The facility already offers world-class technical parameters and reliable operation of both primary and auxiliary equipment, delivering environmentally friendly CSP power to local communities for the first time.
The project, for which Shanghai Electric Group is the contractor, is the fourth phase of the solar thermal and photovoltaic power plant developed by the Dubai Electricity and Water Authority at the Mohammed bin Rashid Al Maktoum Solar Park (MBR). The connection of the facility to the grid marks the culmination of a key objective in Shanghai Electric's globalization roadmap. Built on a world-leading tower and taking advantage of pipeline solar thermal power generation technologies, the project overcomes the limitation that conventional photovoltaic power plants cannot generate electricity at night, making it a demonstration model for the Chinese government's Belt and Road initiative and efforts to achieve carbon neutrality globally.
The 250 MW PV modules are dispersed in unused locations to maximize site usage, while the 700 MW CSP facility consists of three 200 MW pipeline units and one 100 MW tower unit. It is the world's largest stand-alone photovoltaic solar project, covering an area of 44 square kilometers (approximately 17 square miles), the equivalent of just over 6,000 standard football fields or 100 Tiananmen squares. The project uses some 560,000 tons of molten salt and 70,000 heliostats of about 25 square meters each. The earthwork required for leveling the terrain in the desert amounted to about 40 million cubic meters, which is equivalent to the volume of 41 "water cubes" (the well-known aquatic center of Beijing Olympic Green) or the amount of sand and gravel used to build two of the artificial islands supporting the Hong Kong-Zhuhai-Macau Bridge. Rising to a height of 262 meters (approximately 860 feet), the facility is the tallest tower solar thermal project in the world. In addition, it offers the world's largest slot-opening technology in commercial operation, with an opening distance of 8.2 meters. The operation of the facility replaces the burning of 2 million tons of standard coal per year. All these factors combine to make it the largest solar thermal project in the world in terms of installed capacity, investment size and molten salt reserve heat.
Its location in the middle of the desert, where daytime temperatures can reach close to 50°C, together with the impact of the pandemic, among other factors, meant that the project encountered various difficulties during construction, such as increased costs in (of which raw materials increased the most), shipment delays, supply chain issues for equipment manufacturing, and severe staff shortages. By embracing creative solutions and being meticulous in advance preparation, the project department overcame several technical issues to achieve this milestone.
The energy stored in the trunking units and the tower unit, once all the units are operational, can generate power continuously for a maximum of 13.5 hours at night and 15 hours during periods of inclement weather . When the entire project is complete, it will bring Dubai significantly closer to achieving its 2050 clean energy goal of providing clean energy to 320,000 local families and reducing carbon emissions by 1.6 million tons per year.
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