Lately I have seen a lot of people switching over to solar panels, they have basically 2 choices of what to do with the extra energy as far as I know. 1- Batteries 2- Return the extra power to the grid for a credit on their power bill It got me to thinking and I need some input as to how viable or insane my idea is. I was wondering if I built a large pole that had a set amount of weight surrounding it and if I used the extra power to lift the weight to the top of the pole, when I needed it could I let the weight fall and recover the power? To gain a further advantage, could I use pullies or some other way to gain leverage say at a 1:4 ratio so that I would have 4 times the power used to raise the weight available to me when I let it fall? I am just beginning on my physics journey so I am sure I am overlooking something, any suggestions will be greatly appreciated.