Savings Made Simple

The St. Peters water treatment plant reduced energy usage by 12 percent by upgrading to more efficient motors and variable-frequency drives.
Savings Made Simple
Plant operator Erick Kehoe adjusts the variable-frequency drive (VFD) on the transfer pump (the smaller pump and motor in the foreground). The three motors and pumps in the background are the high-service pumps.

Sometimes a simple change can make a big impact. Such is the case for the drinking water treatment plant in St. Peters, Mo. By replacing old motors and installing variable-frequency drives (VFDs), the plant team reduced energy consumption by 12 percent, saving 253,500 kWh per...

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