Demand of electricity is significantly growing. Therefore, the consumption of fossil fuels has been increasing to evoke the electrical energy. This will lead to the fossil fuels scarcity. The solution of this problem is solved by using renewable energy source. Currently, It is not used optimally and needs more innovation. To optimize the renewable energy, it can be done by changing potential energy into electrical energy. One of the technology is using piezoelectric elements which commonly applied to stairway. Piezoelectric elements can produce electrical energy when there is a footstep pressure on the stairway. Before making prototype, we need to know the characteristics and design prototypes by conducting two tests, such as material selection on the piezoelectric layer and the series/paralel circuit design. In addition, a piezoelectric element is made by ceramic material. This material is fragile when exposed to the pressure. Thus, it needs a polyfoam with the thickness of 0,5 cm and eva sponge 0,3 cm placed on the top of the element. The prototype is a stairway that produced the electricity. The stair has 4 panels, each panel has 40 piezoelectric elements with the size of 70 cm x 25 cm x 5 cm for each panel. The elements are arranged in parallel. Each element is equipeed with a soft bearing below the piezoelectric. Furthermore, a polyfoam and an eva sponge are palced on top of the element. The power generated will be higher if the weight of a person who climbed the ladder is greater and the distance between the stairs is higher. The prototype ladder can generate power of 9,4 mW if stepped on by someone with the weight of 44,1 kg.