Design of net-zero energy building using gym equipment concept.

Energy sources in the world impact the environment, including climate change and global gas emissions, which lead to the development of renewable energy sources. This paper investigates gym equipment as an energy-generation approach to support energy consumption or utilization for a building listed as Net-Zero Energy Building. This alternative method to generate energy sources is based on two gym equipment, i.e., a static bicycle and a treadmill. The mechanical energy will be transformed into electrical energy from an alternator before storing it in a battery. Then, an inverter circuit was designed to convert the DC to AC to power the electrical appliances. Several analyses have been made, including the durability and improvement strategies for the system's stability. Overall, this system has achieved its objectives and generates sufficient energy for a building. This concept is an innovation for power harvesting that appears to generate a renewable energy source and can be applied to any building, primarily in residential areas. [ABSTRACT FROM AUTHOR]