Hydroelectric power, despite being overshadowed by wind, solar, and hydrogen, surpasses them in global energy production. While new dam sites face limitations due to financial and environmental challenges, researchers now concentrate on improving existing hydropower setups. By leveraging vortex energy, a new frontier for hydropower innovation is emerging. Vortex hydroelectric systems, generating a swirl effect as water flows, hold the potential to significantly boost energy conversion in plants. Engineers in Australia have successfully implemented large-scale vortex systems, likened to harnessing the energy of a tornado, for enhanced power generation. To meet clean energy targets, hydroelectricity must grow at a rate of 4% annually, necessitating efficiency advancements. Despite current growth rates falling short, modernizing existing plants and integrating vortex technology offer solutions. Hydropower's stability, efficiency, and longevity set it apart from other renewables, fostering grid stability and reliable energy output. Vortex engineering, once discouraged, now promises substantial efficiency gains by optimizing energy capture and extraction mechanisms. Integration of vortex turbines into new or existing hydroelectric facilities holds the key to significant power output increments. Challenges such as those faced in large-scale vortex systems underline the need for careful planning and design to harness this innovative technology successfully.