Have you think ever children’s happiness can also generate electricity? Don’t think big, just simply. In this era of technology so many technologies are coming in power generation, in those some are expensive so in this point of view, we are thinking we can generate power wherever it is possible. So here we are using simple mechanism and very well-known mechanism that is nothing but see-saw mechanism we all are seen in parks while children are playing that’s why I said children’s happiness also generate electricity. In our proposed model we are generating electricity by using rack and pinion setup and spring coil and our see-saw. This is abundance in every children’s park. Eco friendly project. So we can apply it in every park to lit the park at night also. In some cities they won’t allow the children to play in the park at the dusk time due to not available of electricity. And we can experience the practical knowledge.


The use of fossil fuels and other non-reusable sources of energy must be reduced in order to keep emissions low and alleviate the use of diminishing resources. The idea of human powered generation has been implemented in many different situations. Some examples include hand-crank radios, shaking flashlights, and receiving power from gym equipment. The continuously power generating see-saw is not a human operated. If we keep some rolling weights in one plate of see-saw, that provides continuous movement to equipment. We are not using any kind of dc motor to give input. The aim of the continuously power generating see-saw is to implement a seesaw in a playground where we can harness the energy of kids into real power. The use of playground equipment for a clean source of energy would harness the seemingly endless energy of young children. It would provide them a means to exercise while unknowingly supplying power. Even though I mentioned as power generating by children’s happiness we are using some metallic spheres to movement of see-saw instead of children. Why because children are can’t play all over the day.



Our proposed model “power generating see-saw” mainly consists of two spring coils, two rack and pinion setup, metallic spheres and our see-saw. First of all, we need to attach spring coil and rack pinion setup to each side of bottom of the seat.
When we place some metallic spheres, due weight of those spheres one side will go downward. Then spring will have compressed and stores the potential energy of seat. Then spring will retract by newton’s third law (every action has equal and opposite reaction) then our see-saw seat will move upward, when moved upward the metallic spheres those are kept in seat will be rolled to the opposite seat of the see-saw, it will cause the up and down motion of the another seat of the see-saw. Like this it will continue. While it continuously moving upward and downward the rack will move continuously due to motion of rack our pinion will rotate, by rotation of pinion our dc generator will rotate which mounted on the same shaft of the pinion. Like this we can get continuously electricity and we can store it in battery to lit the park areas or other applications also.


  • Easy fabrication
  • Low cost
  • Eco-friendly
  • No person need to maintain after given input
  • Less space occupies


  1. All park areas
  2. We can glow all park surrounded street lights

Sachin Thorat

Sachin is a B-TECH graduate in Mechanical Engineering from a reputed Engineering college. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.

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