An electrical generator powered by the rotation of a central shaft. A gear train rotates with respect to the central shaft and is in operable connection to a generator for producing electrical energy. The shaft can be rotated by falling weights connected to longitudinal arms. Alternatively, a motor can be used to rotate a relatively large wheel in operable connection with the series of gears or gear train. Additionally, the shaft can be rotated by a renewable energy source, such as wind or water.