In Japan about 16 million units of distribution transformers are in service.
These transformers are expending a huge amount of energy in the form of no load
loss and load loss. Among these losses, no load loss is major. No load loss can
be saved dramatically by changing these transformers to amorphous transformers
(i.e., amorphous metal-based transformers). This paper
estimates the scope of the possible energy saving and reduction of CO2
emissions by the adoption of amorphous transformers in Japan and in China.