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July 8, 2022 6 mins
En plena crisis energética mundial, un par de científicos finlandeses innovaron con baterías de arena, las cuales pueden almacenar el calor durante meses, de manera que se libere de forma gradual para calentar hogares y oficinas en invierno.
Funciona mediante celdas colares o unidades eólicas, que generan excedentes de electricidad los cuales calientan la pila. De esta manera, el calor se liberará en los meses que sea requerido.
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