Societatea americana Beacon Power anunta ca a inceput construirea unei centrale de 20 MW in Stephentown (NY), cu particularitatea de a stoca energie prin intermediul a 200 de discuri de inertie, grele.
Energia este stocata sub forma de energie cinetica pe un disc greu de 900 kg care se roteste cu viteza de rotatie de la 8000 la 16000 rot/min.
Sistemul de stocare inertiala se vrea a fi mai eficient, pentru ca este in masura sa restituie circa 85% din energia inmagazinata.
Conceptul de disc inertial (volant inertial) aplicat pentru stocarea si regularizarea energiei, nu este nou, dar cel dezvoltat de Beacon utilizeaza materialele cele mai recente si cele mai solide, cum este fibra de carbon.
Viteza de rotatie mai mare a discurilor inertiale permite o mai mare capacitate de stocare a energiei dar necesita materiale foarte rezistente, pentru a evita efectele explozive.
Unul din cele mai mari avantaje ale stocarii de energie prin inertie, dincolo de faptul ca nu exista emisii poluante de dioxid de carbon, este raspunsul sau rapid, in cateva secunde.
Sistemul dezvoltat de Beacon Power este performant si in egala masura evolutiv. De exemplu, 10 discuri (25 KWh), legate intre ele, sunt echivalentul unei puteri de 1MW.
marți, 16 februarie 2010
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