Wind Turbine As Tall As a 70-Story Building Announced In China

Sweeping the area of 12.3 standard NFL fields each rotation, with gargantuan 140-meter (459-ft) blades, the MySE 18.X-28X will be the largest wind turbine ever built. New Atlas reports: [T]he new MySE 18.X-28X promises to push "beyond the 18 MW threshold," with a mind-boggling swept area of 66,052 sq m (711,000 sq ft). MingYang says it'll handle "the most extreme ocean conditions," including level-17 typhoons with wind speeds over 56.1 m/s (202 km/h / 125.5 mph). Given an average wind speed of 8.5 m/s (30.6 km/h / 19 mph), MingYang projects it will produce 80 GWh of energy per year, "sufficient to supply 96,000 residents." Why go to the trouble of making these things so enormous? Well, increasing the swept area of your fan increases the slice of sky you're harvesting energy from, and it bumps up your overall yield. But perhaps more importantly, wind farms need to be thought of as total systems. One of the biggest costs in an offshore installation is the work needed at the sea bed to root these huge turbines down and give the wind something to push against. So both MingYang and CSSC sell these mammoth mega-turbines primarily as cost-cutting measures that'll help bring down the capital cost of wind farm setup, and eventually the cost of the energy they produce. "Compared to the installation of 13MW models," reads a statement by MingYang on LinkedIn, "the higher output of the MySE18.X-28X would save 18 units required for a 1GW wind farm, shaving off construction costs by 120,000 - 150,000 USD/MW." New Atlas calculated this to "represent a CAPEX saving of $120-150 million on a gigawatt-scale project." "For reference, the 1.2-GW Hornsea One Project, built using 7-MW turbines, is estimated to have cost "at least $5.153 billion, so while $150 million can't be considered chump change, it might represent a couple of percent on a project this big."

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