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Tag: direct current

Size Matters: Making Big Smaller

Size Matters: Making Big Smaller

This piece was originally published in the July 2016 issue of electroindustry. Jim Montgomery, Senior Product Manager, GE’s Critical Power business Lowering the cost while increasing the efficiency of power conversion at data centers—that is, turning alternating current (AC) power into usable, efficient, and reliable direct current (DC) power for sensitive and power-hungry servers—is a major and often contradictory power design challenge facing the industry. This challenge is Read more [...]
DC Microgrids Gain Popularity in Commercial Buildings

DC Microgrids Gain Popularity in Commercial Buildings

This piece was originally published in the March 2016 issue of ei, the magazine of the electroindustry. By Robert Wills, PhD, President, Intergrid Will direct current (DC) microgrids for commercial buildings be our next billion-dollar industry? This question was discussed at NEMA’s Emerging Opportunities Forum at the NEMA Conference Center in January. DC microgrids are the most efficient way to use DC electricity from on-site power generation, such as photovoltaic (PV) and fuel-cell Read more [...]
LVDC – Wave of the future or Technogimic?

LVDC – Wave of the future or Technogimic?

Lately, a return to using low voltage DC power, at least in some applications, had gotten a lot of attention.  There was a US workshop sponsored by NEMA, UL and NFPA that drew over 140 participants.  A workshop was recently held in Europe that had over 70 attendees.  Demonstration installations for data centers and community level distribution have been constructed and tested.  A consortium, EMerge Alliance, has developed a standard and applications for using LVDC for office lighting Read more [...]