Pedzisa mutsara unotevera: Muna 1993, Union Electric yakarwisana ne
Mafashamo emakore 500 munharaunda yeguta guru reSt. Louis anobva kuRwizi rweMissouri neRwizi rweMississippi. Muna 1994, Union Electric yakagoverana Edison Award yebhizimisi neMidwest Power Systems, Inc., yeDes Moines, Iowa, nokuda kwebasa ravo rokugovera magetsi kuvashandisi munguva yenjodzi yemafashamo ya1993.