Philippine E-Journals

Power Generation: Hybrid of Solar Energy and Piezoelectric Generated by Rain

Francis B. Eda | Marvin R. Comia | Alexis Dennis T. Rebong

 

Abstract:

Solar energy has many applications, but when rain comes, the sun is covered by the clouds and energy production is affected. The hybridization of solar energy with other systems that can produce electricity such as rain can enhance energy generation. This study aimed to determine the potential of weather as an energy source in tropical countries and identify the capability of the piezoelectric material in generating electricity using the force of the rain drops as its main source. Solar cells were used to collect energy from the sun and the piezoelectric transducer that can be energized by the vibration from the rain drops. The piezoelectric materials were hybrids of the solar cell in a single panel to harvest more electricity. Through observation, simulations, and experiments, the researchers found that the prototype is capable of harnessing solar energy up to 20 volts when the sun reaches its peak position and 2 volts when there is continuous rain for at least an hour. Future research may use an alternative means of harnessing more electricity by using other types of transducers, which are more sensitive than the current type used in the project so that the energy can be harnessed from the sound and vibration present in a wide range, such as the roof. Likewise, another transducer like temperature-generating transducers to collect energy from the heat during summer and from the cold during rainy season may be added.