While I'm fascinated with the object in Entry #8, I'm not really sure what it is, and how it relates to energy. Entry 7 is right up there among my early favorites because the wind turbine - one of the areas in which we operate - is unmistakable. You've created a nice motion effect with those dots that I wouldn't have thought possible also.Putting the word energy in blue is a stroke of genius. first of all it balances the graphic element, but I like that it makes the whole logo cooler (temperature-wise) which appeals. Good job.