On 17/03/15 12:45, David Weinshenker wrote:
Bill Claybaugh wrote:Ultimately, connecting the future Arab, European, and North American grids will provide more than sufficient supply for the small nighttime load.That sounds like it might not be too realistic, with respect to the actual characteristics of power transmission systems... How would you implement such an interconnection (of e.g. Europe and North America)? How would you transfer power across the ocean? To which of the three North American grids would this transoceanic power line be connected? How would power flow from this point of interconnection to (and across) the other two grids? How would you handle the issue of synchronizing 50Hz European power with 60Hz North American power? What advances will this require with respect to the present state of the art and practice of power transmission technology, the present state of the continental grid infrastructure, or the present state of the economics and politics of bulk power transmission system construction? -dave w
High voltage DC will do the job of transmission.My biggest query with all this is how well will it all deal with a decent coronal mass ejection. The voltages and currents induced in a cable that long are going to be pretty insane.
A large CME is actually one of my pet "end of the world" scenarios, not something that is going to EMP everything with a conductor but something big enough to take out any long distance transmisison line and the transformers on each end. If you took out enough transformers and transmission lines (they may be able to protect the transformers by uncoupling them from the transmission line, but the line is probably still going to melt) the industrial base of the world is going to have a bad time.