" Cities in Bali such as Denpasar, Kuta, and Gianyar are facing a rising heat issue due to urban heat island effect, where urban areas become significantly warmer than the rural areas. This is caused by heat-absorbing materials like concrete and asphalts, the usage of air conditioners, and lack of natural cooling. Houses made from concrete walls or metal roofs trap the heat making indoor spaces hotter. Conventional cooling methods like AC and fans consume a high amount of electricity.