NEOM, a futuristic city in Saudi Arabia powered entirely by renewables, is setting the stage for future city development and energy system planning worldwide. Despite scaling back some elements of its flagship NEOM project, including The Line, the city remains an ambitious showcase for revolutionary technologies. The NEOM project includes plans for the world's largest utility-scale commercial green hydrogen project in Oxagon, integrating 4GW of renewable capacity from solar, wind, and storage. This project, set to produce 600 tonnes of hydrogen daily through electrolysis, aims to provide power for projects like The Line and encourage the adoption of green technologies. NEOM's investment in a high-capacity HVDC system highlights its proactive approach to addressing challenges in deploying large-scale renewables. The project not only offers valuable lessons for transitioning economies like the US and Australia but also serves as a model for nations looking to move towards a more sustainable energy future.