SECTION 11.1  GENERAL POWERS RESPECTING UTILITIES.
   The city shall possess and hereby reserves to itself all the powers granted to cities by law to acquire, construct, own, operate, improve, enlarge, extend, repair, and maintain, either within or without its corporate limits, including, but not by way of limitation, public utilities for supplying water, light, heat, power, gas, sewage treatment, transportation, and garbage and refuse disposal facilities, or any of them to the municipality and its inhabitants thereof; and also to sell deliver water, light, heat, power, gas and other public utility services without its corporate limits as authorized by law.