Power quality issues have been around since Westinghouse and Edison debated whether generation should be AC or DC power. But what has been changing is the increase in PQ pollution and the susceptibility of equipment to such. Even industries such as hospitality and gaming are becoming increasingly vulnerable. It is no longer a matter of "if" but rather "when" it will affect the facility. Hotels and gaming facilities have become increasingly dependent on having continuous and compatible electric power provided to their facilities and the equipment within them. Reservation and check-in/out systems are dependent on a network of interconnected computers, which have the same vulnerabilities to sags, swells and transients as those in an office or industrial facility. Even with backup systems in place, they're not immune to problems.
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