Generate Electricity on stagnant water without fuel or any other raw material (Pollution free)

If water is put on different level then from upper level to lower level it flows automatically for it's same height principle. If we submerge a bucket in a water tank and pull it up holding it's open faces vertically down then water enters into the bucket and the level goes up as far as the bucket pulled up because air give pressure on open water and water enters into the bucket to fill up the void area. Because the void area has no pressure. Now if we can attach a pipe from the upper part of the bucket and keep it's open end down than the bucket's pulled up height from the water then water will automatically come out from the bucket. Now if we fix a generator output terminal shaft with a fan fixed on it in the water flow then the shaft will rotate and eventually the generator will output electricity. This is how electricity is generated without fuel or any raw material or not from flowing water rather from stagnant water. Another method (Method 2) is on the same principle of water (Same height principle) is discussed later.