PER- primary energy rate or ratio

[holand]

hello,
to this might concern,
I need to know something about PER or primary energy ratio but I cant find on the world wide web!!!!
can someone help me or share with me some sites about it?

sincerly thanks,
Holand

 

[vpl]

I altered the search a little to "primary energy" and "r" and came across these two sites that might be helpful -

http://powerlab.fsb.hr/OsnoveEnergetike/1999/bpstat/intros/pri_a.htm

http://frhe

http://www.physik.uni-freiburg.de/guide_mai96/b_2.html

Patricia Lougheed