Applications

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Reduced Financial Losses from Improved On-site Power Quality

Improving electric service power quality (PQ) involves use of electricity storage to protect important or sensitive loads against short duration power system anomalies that affect the quality of power delivered.

Some manifestations of poor power quality which may damage or affect operation of electric loads and that could be reduced or eliminated by energy storage include:

• Variations in voltage magnitude

• Variations in the primary 60 cycles/sec frequency at which power is delivered

• Low power factor

• Harmonics

Updated May 2009