Wednesday, July 2, 2014

Your Motor Efficiency Program - Step 1

Image courtesy of twobee / FreeDigitalPhotos.net
While working with a customer recently, we were able to extract 240 motors from their CMMS system (in this case Datastream/Infor's MP2) and load them into Motors@Work.  These motors account for 26660 total hp.  Roughly estimating that these motors run 2000 hours per year at $.05/kWh, the customer could save $233,980.71 per year with a 10% increase in efficiency.  We feel this is very achievable – given that the D.O.E. estimates 20%-30% potential savings, that overall pumping systems can be considered in future phases, and that the majority of the customer's motors are standard efficiency.  Standard efficiency motors are typically 4% to 7% less efficient than premium efficiency (even more difference when considering super premium efficiency).

So how do we get there?


Step 1:
The first phase of getting value from Motors@Work is to compare your motors against our catalog to find out if there are motor alternatives that could potentially provide a very rapid return on investment.  If so, our tool (Try it free) can do the cost justification.  In order to do that, we need the basic nameplate information on the best candidates for efficiency gain.

We need nameplate data such as size, speed, enclosure type, motor (NEMA) type, voltage and the design full load efficiency, but we didn't want the customer to have to walk down 240 motors right away.  So, we recommended the approach Des Moines Metropolitan Waste Water Reclamation Authority and Des Moines Water Works are taking -- focusing on the motors that consume 80%-90% of the electricity.  For them those are the ones over 50 hp.  They are using this strategy as a part of their drive for Superior Energy Performance certification (http://blog.motorsatwork.com/2014/06/iowa-waterwastewater-operators-lead-way.html).

Is this data you already have?  Is it something you can easily get?  If so, I see lower electricity costs in your future!

Stay tuned for future steps...

No comments:

Post a Comment