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Motion sensor controlled vending machines

1,855 bytes added, 17:48, 7 February 2010
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Below is a breakdown of the [energy supply mix in Ontario from 2005:<ref> Ontario Power Authority (2005), ''Supply Mix Advice and Recommendations'', energy supply mix in Ontario] from 2005:</ref>
Nuclear 51%
The [EPA released U.S. data that relates energy production of various sources to the resulting carbon dioxide emissions.<ref> Department of Energy & Environmental Protection Agency (2000), ''Carbon Dioxide Emissions from the Generation of Electric Power in the United States'', EPA] released U.S. data that relates energy production of various sources to the resulting carbon dioxide emissions. </ref> The U.S. data was analyzed to determine the average carbon dioxide emissions released by each energy source and then compared to Ontario's energy supply mix. The result is approximately 0.222 tons of carbon dioxide is emitted in Ontario for each megawatt of energy produced.
== Health Effects== Using an average value of 3494 Kwh consumed per year for standard refrigerated vending machines and an estimated 46% energy reduction by switching to motion sensor controlled vending machines, the energy savings is approximately 1607 Kwh each year. This translates to an annual reduction of 0.35 tonne of carbon dioxide emissions for each converted vending machine. Using the most recent cap and trade legislative framework proposed in the Kerry-Boxer Bill for North American markets, it is estimated the value of carbon will be close to $15 per tonne.<ref> Point Carbon (2009), "Carbon to Cost $15 per Tonne Under Kerry-Boxer Bill", </ref> Therefore, if a cap and trade program were to be implemented, the additional benefit would be $5 per year for each vending machine converted to motion censored.
<br>   Dollars per megawatt = Health Effects==
Natural Gas The National Research Council has investigated the external costs associated with power production in the United States. A study sought to determine the cost to society to convert each source of fuel into energy. The study focused primarily on natural gas and coal and found the external costs per megawatt to be $1.6for natural gas and $32 for coal, not including climate change effects.<ref> National Research Council (2010), "Hidden Costs of Energy: Unpriced Consequences of Energy Production and Use", </ref> Based on the energy supply mix in Ontario, the external health effects total $6.19 per megawatt of energy consumption. Therefore, by reducing energy consumption by 1607 Kwh, the external health effects equates to an annual benefit of approximately $9.95 per vending machine.
Coal 32


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