"Iowna Uass" wrote in message
...
HOWEVER,
I read recently that research into high-voltage transmission was
suggesting that very high voltage DC transmission was more efficient that
AC -- proly due to lack of capacitance/inductive effects et al, or some
other wizardry -- and that with the advent of solid state inverters,
transforming DC to AC would be less problematic, rendering DC
transmission ultimately viable.



MB Hydro uses DC for transmission from generator sites to converter
stations over hundreds of miles.

http://www.hydro.mb.ca/corporate/fac...s_nelson.shtml



Very inneresting. The article said the technology for HV DC transmission
came about in the '60s, altho it's not clear when it was actually
implemented. I suspect it was in the late '80s, or '90s.

The article seemed to imply that this hydroelectric plant was *dependent* on
the technology of DC... don't know why AC would not have sufficed.
--
EA