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Interesting... how transient is the behaviour of the power (i.e. is it
adaptive depepnding on the state of the network)?
If it is not would it then be feasible to determine the network topology
based on power flow (as done with association pattern, i.e. amount of time
spend together vs. amount of power transferred from one to another) instead
of using the physical connection of nodes in the grid?

best,
David

----- Original Message -----
From: "Valdis Krebs" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, November 07, 2003 2:43 PM
Subject: Re: Network analyses of power blackouts


> ***** To join INSNA, visit http://www.sfu.ca/~insna/ *****
>
> Unfortunately SNA methods do not work well in analyzing the power grid.
Electricity flows MUCH differently than info/knowledge/influence flow
through social networks. For instance, power flows OFTEN do not follow the
geodesics, and POWER may be broken up[at various nodes] to travel along
several paths, and need to balance network inputs/outputs... We may find a
node of high betweenness[or some other metric] in the grid topology and then
discover that very little electrcity actually passes through it.
>
> Valdis
>
>
> ---- Rick Davies <[log in to unmask]>
> >
> > Have list members read the recent Sci American article on power
blackouts in
> > the USA? It makes a number of interesting observations about the
downsides
> > of excess connectivity in power webs, and how the solution (i.e how to
avoid
> > blackouts) may be via reducing the amount of connectivity, and the
creation
> > of islands of connectedness.
>
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