Superior Water, Light and Power (SWL&P), an ALLETE company, provides electricity, water, and natural gas to customers... from Duluth, Minnesota, where ALLETE is headquartered. SWL&P has served this region for more than 130 years...
Superior Water, Light and Power (SWL&P), an ALLETE company, provides electricity, water, and natural gas to customers... from Duluth, Minnesota, where ALLETE is headquartered. SWL&P has served this region for more than 130 years...