Status of static UPS (uninterruptible power supplies) applications in the United States
- Chester and Schmidt Consultants, Oakland, CA (USA)
The advent of microelectronic circuits and components, which are found in most electrical equipment, has resulted in the need to protect this equipment from loss of electric power or deviations in its frequency, voltage and sinusoidal wave shape. The uninterruptible power supply (UPS) generally offers this type of protection. This report summarizes the findings and conclusions of an assessment of applications for static UPS systems in the US. The study is primarily based on a survey of three groups: (1) users of UPS equipment, (2) manufacturers and suppliers of UPS equipment, and (3) electric utilities. The study found that UPS systems are perceived to be comprehensive in their protection against power losses or deviations. Static UPS dominates the UPS market, almost a 90% market share, and this dominance should continue in the future. The most common application of static UPS today relates to computers and is expected to remain so in the future. Two-thirds of the surveyed electric utilities anticipate the doubling of the UPS market in next decade. This growth in UPS sales will primarily result from purchases by new users. The assessment concludes that power interruptions and fluctuations are of increasing concern to both electric utilities and their customers. Electric customers want more information on how to solve these power problems and on how to specify and select UPS equipment. Electric utilities can expect to continue providing to their customers (1) information on power problems and possible solutions and (2) limited assistance and advice in diagnosing and correcting power problems. However, in the future, electric utilities may play a greater role, for example, selling UPS or similar equipment. 23 refs., 19 figs., 32 tabs.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (USA); Chester and Schmidt Consultants, Oakland, CA (USA)
- Sponsoring Organization:
- EPRI
- OSTI ID:
- 5485627
- Report Number(s):
- EPRI-CU-6498
- Country of Publication:
- United States
- Language:
- English
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