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Isopomoto IIT EnPRO-<strong>356</strong>, Fall 2006<br />

2.5.1 Case Studies<br />

disadvantages <strong>in</strong>clude reduced resources for research and development and<br />

restricted distribution options and market access.<br />

Early market <strong>in</strong>troduction of <strong>plug</strong>-<strong>in</strong> <strong>hybrid</strong> technology has the best chance of<br />

success <strong>in</strong> the commercial delivery fleet market where operat<strong>in</strong>g costs are critical to the<br />

profitability of the firm. PHEVs represent the future for the utility <strong>in</strong>dustry fleet. With<br />

this view <strong>in</strong> m<strong>in</strong>d, we plan to do a case study on two customers.<br />

I. Chicago Transit Authority (CTA)<br />

The CTA is the second largest public transportation system <strong>in</strong> the United States.<br />

CTA‘s two thousand and thirty three busses covered almost seventy five million miles<br />

and consumed twenty four million gallons of fuel at a cost of forty three million dollars <strong>in</strong><br />

just one year (2005).<br />

Impact of Fuel Cost<br />

The CTA‘s operat<strong>in</strong>g performance for the year 2005 was negatively impacted by<br />

the spiral<strong>in</strong>g cost of fuel for revenue operations. The <strong>in</strong>crease <strong>in</strong> fuel prices generated<br />

$9.1 million of additional cost to CTA‘s operat<strong>in</strong>g expenses. On average, for every $0.10<br />

<strong>in</strong>crease <strong>in</strong> fuel prices, CTA‘s annual fuel cost <strong>in</strong>creases by $2.4 million.<br />

Plug-<strong>in</strong> Hybrid CTA Bus<br />

Convert<strong>in</strong>g the present CTA buses <strong>in</strong> <strong>plug</strong>-<strong>in</strong> <strong>hybrid</strong> <strong>electric</strong> buses will<br />

undoubtedly alleviate the problem of ris<strong>in</strong>g fuel cost. The retrofit approach proposed for<br />

<strong>hybrid</strong>ization will guarantee a fuel efficiency improvement of thirty percent and would<br />

only cost the CTA around twelve thousand dollars per conversion.<br />

25

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