Tuesday, July 15, 2014

SEP (ISO 50001) and Motor Driven Systems

Introduction

Today over 24 trillion kWhs of electricity is consumed worldwide. This is projected to grow to 39 trillion kWhs by 2040.  There are over 350 million motors in use in industry, infrastructure and large facilities which consume over 6.75 trillion kWhs or a little over 1 out of every 4 kWh generated in the world is consumed by electric motors and driven systems. Typically, motors and driven systems consume in excess of 65% of an industrial sites’ electrical energy (approx. 30% in commercial facilities). In primary manufacturing, process loads predominate and motor driven systems may constitute more than 90% of a site’s electrical consumption. The motor driven consumption will continue to increase proportionate to the electricity consumption projections represented in the 30 million electric motors sold annually today for replacement and new applications, which as a market, is projected to grow at 19.67% over the next 5 years. Conservatively by 2040 we will be looking at over 600 million electric motors in use in the Commercial and Industrial (C&I) sectors consuming over 13.5 trillion kWhs.  At $.1 per KWh this is equivalent to $1.35 trillion per year. Of this motor-driven equipment consumption the D.O.E estimates that 15% to 80% of the motor-driven energy consumed is wasted. 


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?