What planet receives the least amount of insolation?

Answer 1

That would be Mars. The lack of a magnetosphere and extremely thin atmosphere of Mars are a challenge: the planet has little heat transfer across its surface, poor insulation against bombardment of the solar wind and insufficient atmospheric pressure to retain water in a liquid form (water instead sublimates to a gaseous state). Mars is also nearly geologically dead.

Answer 2

At greater distances from the Sun, the power density reduces with the square of the distance. This is not because energy is absorbed along the way, it is only because the power has to spread out over a larger area.

A planet at a distance of 10 astronomical units (10 times further than the Earth) would have one hundredth of the power falling on a standard area like 1 square metre.

Answer 3

the north pole and the south pole receive the least energy per year.

Answer 4

That would be Neptune, as it is the farthest planet from the sun.

Answer 5

Pluto, As It Is Furthest Away From The Sun!