A customized mobile substation gets power back to customers as safely and quickly as possible.nBefore power makes it down distribution lines and into homes, a substation is required to transform voltage to a usable level for safe delivery throughout a community. But in Winona, Mississippi, the substation that usually powers the town was destroyed when catastrophic weather swept through the area last week. Luckily, the brilliant technology of a mobile substation will serve Winona while crews rebuild the permanent substation.