It can generate electricity for 30 years with no maintenance or replacement of parts.
Sandia National Laboratories researchers have developed a fundamentally new type of rotary electrical contact. The technology is called Twistact, and it will eliminate the need for expensive rare-earth magnets in large wind turbines.
“We knew it would be game-changing if we could find a way to get around the limited service lifetime of conventional rotary electrical contacts," he said. One of the major benefits of Twistact is the complete elimination of rare-earth magnets. These materials have vulnerable supply chains and come at substantial initial costs.
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