WEST RIVER ELECTRIC ASSOCIATION, INC., APPELLEE, v. BLACK HILLS POWER AND LIGHT COMPANY, APPELLANT, AND ELLSWORTH AIR FORCE BASE. BLACK HILLS POWER AND LIGHT COMPANY, APPELLANT, v. HEARTLAND CONSUMERS POWER DISTRICT, APPELLEE. WEST RIVER ELECTRIC ASSOCIATION, INC., APPELLEE, v. BLACK HILLS POWER AND LIGHT COMPANY, APPELLANT, AND ELLSWORTH AIR FORCE BASE. IN THE MATTER OF […]