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When replacing a motor, upgrading to an energy-efficient version is a no-brainer. One reason is when you chart the cash flows you may see the equivalent of several free motors over the life of the motor based on the energy-savings alone. Another reason is the “energy efficient” part comes from making a better, more precisely-built, motor that is more reliable and will probably last well past your retirement date if properly maintained.
But making the case for an upgrade when the existing motor is perfectly fine is difficult. The economics are there but management generally dislikes replacing functional equipment. You want to improve the plant’s overall energy efficiency, but management turned down your upgrade request. What can you do?
Consider just two actions that save energy, whether the motor is energy efficient or not.
Source: Mark Lamendola | Mindconnection