Rancang Bangun Pembangkit Tenaga Hybrid Piezoelektrik dan Solar Cell dengan Sistem Penyimpanan Baterai untuk Pengisian Daya Smartphone

Abstract

The per capita electricity consumption in Indonesia is projected to continuously increase, reaching 1,501 kWh per capita by the end of 2027. This growing demand necessitates the construction of new power plants relying on fossil fuels, which leads to greenhouse gas emissions that threaten human health and cause environmental pollution. Through the Paris Agreement, Indonesia strives to reduce greenhouse gas emissions by transitioning the current energy system to accommodate the penetration of Renewable Energy Sources (RES). This second final project involves the design and development of a hybrid power generator using piezoelectric sensors and solar cells as an innovative, renewable, and environmentally friendly energy source with a battery storage system for charging smartphones. This project aligns with Sustainable Development Goal 7 (SDG 7) - Affordable and Clean Energy. Developing and applying this design in daily life represents a contribution to the global effort to ensure access to affordable, reliable, sustainable, and modern energy for all, as outlined in SDG 7. In this second final project report, the research method used to create this prototype involves a literature study followed by data collection through experimental methods and subsequent data analysis. The variations used in the research include the variation in human body weight, the number of human footsteps, and light intensity. Based on the data from testing the effect of human body weight and the number of footsteps on the voltage value of the piezoelectric sensor, it is concluded that an increase in body weight and the number of footsteps is directly proportional to the increase in piezoelectric voltage. Similarly, testing the effect of light intensity on the solar cell voltage value concluded that an increase in light intensity is directly proportional to the increase in solar cell voltage.