After two or three weeks without smoking, your lungs may start to feel clear, and you'll start breathing easier (AHA, 2012) . For most smokers, withdrawal symptoms dissipate about two weeks after quitting.
Use and Energy Efficiency Opportunities. Energy Use in Supermarkets. On average, supermarkets in the United States use around 50 kilowatt-hours (kWh) of electricity and 50 cubic feet of natural gas per. square foot per year â an average annual energy cost of more than $4 per square foot. For an average-size (50,000 square foot) store,
Energy Information Administration survey of com-. mercial buildings.) Using average commercial energy. prices of $0.10 per kWh and $0.98 per hundred cubic. feet, the average cost of power per ft2 for office build-. ings is approximately $1.73 for electricity and $0.31.