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World's first dual-tower solar thermal plant boosts efficiency by 24%
Two 650-foot-tall (200-m) towers have risen in China's Gansu Province. Combined with an array of 30,000 mirrors arranged in concentric circles, the new facility is expected to generate over 1.8 billion kilowatt-hours of electricity every year.
In 2017, Australia announced that it was building the world's largest single-tower solar thermal power plant with a proposed output of 150 megawatts, although that project was ultimately killed in 2019. The two towers at the new plant, which is now 90% complete, will also employ a molten salt method to store heat during the day and release it at night to keep the facility churning out power. As part of that green-power effort, the solar thermal energy towers and mirror arrays are expected to save 1.53 million tons of carbon dioxide emissions per year.
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