Power Quality/Energy Savings

There is more attention on finding energy savings and ensuring appropriate power quality than ever before–and for good reason.

The relatively simple steps required to optimize power quality and reduce energy usage have the potential to generate large cost savings, not only by reducing energy costs, but by preventing damage and lengthening the lifespan of equipment.

There are four areas in which EMA helps clients optimize power quality and power usage: harmonic analysis/correction, motor drives, motors, and lighting.

Surge Protection, Harmonic Analysis and Correction

Dirty power is everywhere, and nuisance glitches in computers and PLC s, along with lighting ballast failures can often be attributed to surges.  EMA sells and installs Trebor Power surge protection devices, which are among the most reliable and cost effective in the world.  Surge protectors are an inexpensive solution to maintenance and downtime caused by faulty power.

Harmonics are induced into power systems by non-linear loads, such as drives, and if they are of sufficient amplitude, can cause everything from wasted energy to damaged equipment. Harmonic current is real, but it’s useless, damaging,  and wasted current, as opposed to the useful current that is powering your motors, illuminating your facility, or maintaining your environment. Correcting harmonic distortion is one way of reducing your energy bills, not to mention eliminating potential damage to your system. EMA sells the TCI family of both passive and active harmonic filters. 

EMA can analyze and recommend solutions to power line harmonics in order to prevent that waste and damage. If you suspect this might be a problem for your systems, contact us today to discuss an analysis from EMA.

Motor Drives

While fans and pumps are typically designed for maximum loads, in most cases, that level of energy is only needed sporadically and is wasted needlessly the rest of the time. On variable torque loads, drives are a proven way to substantially reduce energy consumption.

Because the power required by a centrifugal load reduces exponentially with speed, even a small reduction in fan or pump speed can result in substantial energy savings; savings that far exceed what can be achieved by using dampers and valves.  Air Handlers, Pumps, and Cooling Towers are just a few of the applications where motor drives can save energy.   See “Oh No, “am I turning green?”

For a recent EMA power point presentation about energy savings and drives, click HERE

High-Efficiency Motors

Older electric motors can be very inefficient. Installing new high-efficiency motors can be a highly effective way of lowering your facility’s energy consumption. These upgrades often pay for themselves quickly while their cost-reducing benefits last for years and years.

download WEG High Efficiency Motor Catalog (note: Large PDF File)


Lighting in both industrial plants and commercial buildings consumes enormous amounts of energy. By evaluating lighting requirements, it is often possible to gain excellent savings in energy usage.

In many cases, incorporating state of the art lighting controls can generate excellent energy savings, while at the same time, giving you the ability to better light critical spaces.   Contact EMA today to discuss the options for your facility.

To download a TMS lighting brochure click Here (pdf file)