The scope of power engg. in electrical engg.?

im planning to specialise in power engg. in electrical engg. but ive read ques. asked by other ppl on yahooanswers, and hav noticed dat many ppl.. have been changing their jobs/career from being a Power engineer to sumthin else in the same field of electrical engineering ie: working as a network engineer..and this makes me feel,.. dat the scope of power engg is lessening...could sum1 pleaz tel me da scope of power engineering ....