On 30/04/2013 12:56, polygonum wrote:

Out of genuine ignorance, I ask what aspects of German and our
electricity distribution make it "not a grid" there, but "a grid" here?

Should have said "Not an independent grid", I think.

The German grid is tied into other European countries by direct wiring,
so the whole of that zone works as a "grid". The UK is only linked to
the mainland by DC links, and the inverters at each end are locked to
their respective grids, so our internal transmission frequency and
phasing can and does vary from the mainland grid.


--
Tciao for Now!

John.