Case Study: Domestic water boosting system cuts energy use by 90%

Posted on January 25, 2012 by Joel WilliamsNo Comments

The potential efficiencies of water boosting systems from Grundfos are highlighted in the January cover story of Plumbing Mechanical Engineer, which profiles one apartment building’s jaw-dropping energy savings achieved through variable speed pump technology.

In fact, talk about putting your money where your mouth is- this project’s contractor was so confident in the potential energy savings that he paid for the new system himself — all in an effort to convince building management to invest in the efficient technology.

The gamble paid off in spades.

An independent project audit vindicated the daring claim by documenting a 90 percent energy savings over a one-week period in September 2010, and a 26-month payback period.

Moreover, the drop in power consumption translates to an annual utility cost reduction of nearly $18,160. Total project savings are estimated at $275,000 over the average 15-year pump lifespan. Despite removing 70 HP from this system, the computerized control, demand-based performance of the new pumping station averages just 30 percent capacity.

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National Kitchen and Bath Association Public Relations Society of America: Georgia Green Earth PR Network