CREATE TABLE table_62934 ("Rank" FLOAT, "Name" TEXT, "Capacity  (  MW  ) " FLOAT, "Province" TEXT, "Type" TEXT)

what is the lowest rank when the type is hydro, the name is grand rapids generating station and the capacity (mw) is more than 479?
SELECT MIN("Rank") FROM table_62934 WHERE "Type" = 'hydro' AND "Name" = 'grand rapids generating station' AND "Capacity ( MW )" > '479'
SELECT MIN("Rank") FROM "table_62934" WHERE "Capacity ( MW )" > '479' AND "Name" = 'grand rapids generating station' AND "Type" = 'hydro'