berrgerry,
If I remember my Watchtower theology correctly, Jehovah's Witnesses do not teach that God is "pure energy." They believe that God is limited to the space-time continuum, what in Christianity is called existence on the "temporal" plane. Jehovah's Witnesses believe in everlasting life but not "eternity" like Christianity or as we do in Judaism.
The Witnesses believe that God is a spirit, with a spirit mind that exists in a spirit body that dwells in a spirit place or location called "heaven." To them God is experiencing time move along with us.
In Judaism and Christianity God is not in the space-time continuum. In Christianity they call the plane "eternity" as compared to the "temporal." In Judaism we do not define God's existence but state that God is ineffable, yet agree God is also eternal. While Christianity tends to see God in more of a naive deity form than Judaism, both of us understand God as omnipresent since God is not bound by time or space. This means the past, present and future is present to God immediately, all at once, and has always been/is/will always be. This also means God is not bound by a body or lives in a "place" since God isn't inside the universe that God created.
Witnesses have no definitive theology on exactly how Jesus (Michael the Archangel) was created, but Trinitarians do have a formal creed regarding how God the Son was created. It differs markedly from Witness theology so significantly that there is no vocabulary in Witness religion to compare it with.
In the Nicene Creed, for one example, Jesus is described as being "begotten of the Father before all ages. Light from light, true God from true God, begotten [but] not made, consubstantial with the Father." This is one specific formula, the very specific wording of which can divide denominational lines.
Witnesses haven't formulas, but at the same time have wild theories that compose a somewhat ad hoc religious system, easily tossed out and replaced when a hole in a theory become too widely pronounced to ignore.
And while you are correct that Witnesses often say that God took some of himself to create Jesus, this is hard to prove from Scripture. The consensus of theologians both Christian and Jew is that the Bible teaches that God produced all creation from nothing. If Jesus is a creation, this teaching of the Witnesses is paradoxical. If Jesus is made from God, then the Nicene Creed is true, that Jesus is indeed "Light from Light, true God from true God."