Re: Electricité de France

[Stephen A. Lawrence]

Jones Beene wrote:

 
Lo and behold:
 
http://www.edf.fr/download.php4?coe_i_id=54806
 
 
It turns out that the French system is variable between 49-51 Hz and 
that the higher number would be expected when the plant is running at 
thremal maximum... in l'été, shall we say...

Je ne comprend pas!

How can the system be _variable_?  I mean, don't all stations have to 
agree on a frequency?  How do they do that if it's variable -- vote, or 
something?

Or does somebody in an office building in Paris turn a knob when the 
temperature outside goes over 80 (er, 27)?


 
That is logical - your turbines are spinning at the maximimum 
permissible rate and this jacks up the frequency slightly....
 
Still do not think (or hope not anyway) that this is the explanation 
for the excess energy...unless someone can place this lab with 100 
meters of a large transformer