Fluctuations in power quality are far more common than power outages, often happening multiple times a day, frequently simultaneously, and typically without attracting attention. The causes of these costly fluctuations are both numerous and commonplace in most businesses:

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Most of the time, these power fluctuations are relatively minor, and as such they inflict correspondingly minor damage to equipment. Because these fluctuations do not cause an immediate failure, they often go unnoticed, making it very difficult to estimate the cumulative long-term costs of power quality fluctuations. However, over time, small disturbances take their toll on sensitive equipment, and analysts agree that any estimates of the cumulative costs, if ever successfully evaluated, would likely reveal staggering numbers.

One study of only the industrial and digital segments of the US economy (approximately 17% of all US businesses) attributes approximately $6.7 billion a year in losses to power quality issues for just these two segments.*

 

*Galvin Electricity Initiative, “Calculate Your Costs,” 2012 http://galvinpower.org/your-business/calculate-your-costs

 

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