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Brisbane’s Renewable Energy Solutions Australia (RESA) recently unveiled the first working installation of what is claimed to be the world’s quietest wind turbine. The Eco Whisper Turbine is capable of producing 20kW of electricity despite being about half the height and having half the blade diameter of more familiar three-bladed solutions, and is able to automatically adjust the position of the blades to maximize wind capture.
Much of the noise produced by small wind turbines occurs when air spills off the tip of the blades but thanks to a unique cowl/ring design, the Eco Whisper Turbine is said to benefit from near-silent operation. RESA says that its design can produce more than 30 percent more energy than other turbine solutions over a wide range of wind conditions – that translates to up to 45,000 kWh per year in optimum conditions.
