LED 조명의 자가 발전 시스템으로 사용할 수 있는 수직축 풍력시스템 (풍력 터빈)
요렇게 풍차를 돌려서 전기를 발생시킨 다음엔 배터리에 저장했다가 필요할 때 사용한다.
문제는 배터리 비용도 만만치 않다는 데 있다.
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같은 방식이지만, 자기부상 열차처럼 자장으로 공중 부양시킨 자기 부상 풍력 터빈 (Magntic Levitation Wind Turbine: Maglev Wind Turbine) 요거 초대형 풍력발전 시스템이다.
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