I'm recently out of this stock. Is the following correct? Under no load xformer material saves between 6 to 10 % of power. Under a load condition there is no savings IF above is correct consider following Night time "no Load" means no customers BUT the power still has to be there. Since the power still has to be there is the power company actually saving anything. I may get back in if I can get better understanding. Best to all another topic...Customer savings this would only apply to big customers who had their own Xformers ,,Right?
There are 2 types of losses... no load losses and load losses. No load losses are seen as soon as the transformer is energized. Load losses seen are proportional to loading. Amorphous cores lower the no load losses (which are always present). Here is a good document to study... also WIKIPEDIA for "amorphous transformer" is good.
In a perfect world---E=voltage, A=current, P=power--E x A = P. If current is zero, then power is zero. The more effecent a transformer is the less power is lost to heat in the transformer and that's what CPQQ is all about.
R. I learned that as PIE where I= current. Here's something to think about: during the day full load requires 100kv on primary but at night with a reduced load 50kv would be plenty. A smart Xformer with smart distribution center "automatically" switch to the lower level. Network wide this would be a big deal.
I went to Hitachi and looked at their products. .Super Amorphous will get you in the ball park..also "soft metal" may help.In any event to the best of my memory info came from Hitachi. To 2nd responder I think we all agree there is power loss at no load.