Originally posted by Cartesian Doubt
That was written (by Geoff Johns) before the red sunlight blocks his powers John Brusiek retcon, when red Solar radiation depleted his energy stores. He was therefore using the energy stored up in his Cellular batteries.
This being the Key Quote :"The bad news is, for Superman to push a planet with the force described above, he would have to burn up 2 quintillion tons of matter each second. "
This is Trillion times more energy than the Sun gives off a second - Even if you take Superman's ability to store Sunlight energy, it would still take over 30, 000 years (and that's if he absorbs ALL the Sun's energy - Killing everyone on earth in the process) to absorb enough energy to move the Earth for a second.
Oh, but his [depleted] energy stores enough to move a mass 16 times that and it's all kosher with you, or are you just dodging?