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Walgreens To Build First Self-Powered Retail Store

MojoKid writes "We hear about green deployment practices all the time, but it's often surrounding facilities such as data centers rather than retail stores. However, Walgreens is determined to go as green as possible, and to that end, the company announced plans for the first net zero energy retail store. The store is slated to be built at the corner of Chicago Avenue and Keeney Street in Evanston, Illinois, where an existing Walgreens is currently being demolished. The technologies Walgreens is plotting to implement in this new super-green store will include solar panels and wind turbines to generate power; geothermal technology for heat; and efficient energy consumption with LED lighting, daylight harvesting, and 'ultra-high-efficiency' refrigeration."

4 of 186 comments (clear)

  1. Re:Geothermal heating? by overshoot · · Score: 4, Informative

    The preferred term is "geoexchange" precisely to avoid this confusion.

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  2. Re:Kilowatts? by Kufat · · Score: 4, Informative

    You've got it backward, I'm afraid. Watts are a measure of power, while watt-hours are a measure of energy (power times time.) A device that uses one kW of power while operating uses 24 kWh of energy per day of operation

  3. Re:Kilowatts? by jklovanc · · Score: 4, Informative

    A watt is calculated by volts (a measurement of electrical potential) time amps (a measurement of resistance). Notice that there is no time value in that calculation.

    To correct your calculation;
    a 1 kilowatt device used constantly for 24 hours uses 24 kilowatt hours. Notice watts time hours equals watt hours. The kilo is there just to reduce the number of zeros needed. for example a 1 watt device used for one thousand hours uses 1000 watt hours or 1 kilowatt hour.

  4. Re:But... by FatdogHaiku · · Score: 3, Informative
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