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At CDM, We Don't Make the Energy Savings. We Make the Energy Savings Better

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Sharp increases in electricity costs caused budget overruns for the city of Conroe (City) which created a strong need for the City to reduce their operating costs. The City engaged the services of CDM to reduce the energy consumption of their single largest load – their 10 million gallon per day (MGD) activated sludge wastewater treatment plant (WWTP). CDM audited their WWTP and developed an approach to quantify existing aeration energy usage as well as equitable and measurable energy reduction metrics. As a result, the City is saving approximately 3,900 Mw-hr of electricity or 300,000 per year (0.078 per kW-hr). CDM completed the 2 million dollar project in half the time of the traditional design-bid-build process. This paper focuses on the relative merits of alternative project delivery with regard to stipulated energy savings and project procurement with a single responsible party while eliminating traditional risks associated with traditional project procurement.

Document Type: Research Article


Publication date: January 1, 2008

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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