Sunday, September 25, 2011

Two Are Better Than One – An Old Wisdom

King Salomon wrote some 3,000 years ago about redundancy:

Ecclesiastes 4:9-12: “Two are better than one, because they have a good reward for their labor. For if they fall, the one will lift up his fellow; but woe to him that is alone when he falleth, and hath not another to lift him up. …. and a threefold cord is not quickly broken.”

It would be very helpful in the future electric power delivery system if a higher degree of redundancy would be implemented! There is still a lot … but it is degrading in many places all over.

The major power outage in the San Diego region two weeks ago caused a failure in “a portion of the “north loop” of San Diego County’s Regional
Communications System (RCS) experienced a major failure when the county-wide power outage hit on September 8, 2011. This was the second major outage for the redundant 800 MHz RCS that was designed to carry public safety communications without the need for a backup system. …”

Accountants may say: The backup costs a lot of money … ;-)


Click HERE to read the full report.

I have seen communication “boxes” for wind turbines that offer three communication channels … just in case! TCP/IP over Ethernet, GPRS, and Satellite. That should work highly reliable and offer a high availabilty.

No comments: