Thank you for confirming every bit of stupidity of which I accused you in the prior post. That's right, but motion of planets is not necessary for them to attract each other. I put a rock on a tower. Gravity has the rock exerting force on the tower, but it isn't moving (let's assume no spin to eliminate all kinetic energy). Neither Earth nor the rock emits gravitational waves in this scenario, but the gravity force is still there, and only the tower keeps the rock from falling. Yes, energy for Earth's gravitational waves comes from orbital motion, and it is one of the four things altering Earth's orbital radius. It is the least of those four things.