Climate change is a defining issue of our time. Achieving the goal of carbon neutrality requires the joint efforts of the international community. To date, more than 150 countries have announced carbon neutral or net zero targets

The development of a system for renewable energy is key to achieving carbon neutrality and sustainable development. Crafting the optimal next-generation energy system includes variables such as energy structure, energy technoloaies, and other yet-to-be-determined attributes. This addresses the challenge of overcoming the bottleneck of the demand for safe, green and economic' energy, constrained by carbon neutrality.

By summarizing the development ideas and plans of carbon-neutral energy systems in different countries we propose the Carbon Neutrality and Energy System Transformation (CNEST) program. Based on monitoring of global carbon sources and sinks, this approach integrates advanced computing technology and energy netwvork, and aims to optimize the energy system and fnd the model for a new generation energy system.