Electricity, Gas, Steam, & Air Conditioning Supply

activities of gas brokers or agents that arrange the sale of gas over gas distribution systems operated by others; commodity and transport capacity exchanges for gaseous fuels; manufacture of gaseous fuels with a specified calorific value, by purification, blending, and other processes from gases of various types including natural gas; production of gas for the purpose of gas supply by carbonation of coal, from byproducts of agriculture or from waste; sale of gas to the user through mains; transportation, distribution, and supply of gaseous fuels of all kinds through a system of mains

production and distribution of chilled water for cooling purposes; production and distribution of cooled air; production of ice, including ice blocks for food and non-food (e.g. cooling) purposes; production, collection, and distribution of steam and hot water for heating, power, and other purposes