Want to move to all 208V for server racks

Sat Dec 4 15:51:52 UTC 2010

On Fri, Dec 3, 2010 at 22:28, Owen DeLong <owen at delong.com> wrote:
 > ... This is easily done with AC and would be quite complex
> and inefficient (especially with the technology available at the time this
> decision was made) with DC.

Correct.  Now, of course, with switched mode conversion
and power FET technology DC-to-DC converter efficiency
can be greater than 95% in optimized designs, but back
when Edison and Tesla were arguing the merits, DC
conversion was very inefficient compared to AC.