News Release BC and City of Rochester Hit a ‘Home Run’ Release FOR IMMEDIATE RELEASE Media Contact:…

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    News Release

    FOR IMMEDIATE RELEASE Media Contact: Claire Shanley 978-983-2046

    BC and City of Rochester Hit a Home Run

    Upgraded wastewater treatment plant will cut aeration energy use by 42%

    October 13, 2011, Andover, Mass. The new aeration blowers at the City of Rochester, N.H., wastewater treatment plant have been called a home run for energy efficiency.

    The project, designed by Brown and Caldwell, upgrades the plants aeration blower system, the most energy-intensive stage of wastewater treatment, with high-efficiency, gear-driven blowers from Siemens Energy. The upgraded system will save more than 32,568 gallons of heating fuel and nearly 522,504 pounds of carbon dioxide annually.

    The project was funded in part by a $394,000 Greenhouse Gas Reduction Grant from the PUC, some of which the city used to purchase the blowers. We saw the projected CO2 reduction and the energy savings and felt certain this project would be a home run, PUC Sustainable Energy Director Jack Ruderman stated. This project offers a model for other municipalities across the state looking to increase energy efficiency in their wastewater treatment plants. The facility is expected to recoup the remainder of its investment for the $680,000 project in the form of annual electrical cost savings within five years.

    About Brown and Caldwell

    Brown and Caldwell has been delivering innovative, enduring environmental solutions for municipalities, private industry and government agencies throughout the United States since 1947. An employee-owned company, Brown and Caldwell is relentlessly focused on client needs, and brings decades of engineering and scientific experience to every project. For more information about the company, please visit