China’s Grid Revolution: Urban-Rural Solar Storage Model

In the rapidly evolving landscape of renewable energy, a groundbreaking study is set to revolutionize how we integrate solar power and energy storage into our electrical grids. Led by WANG Qiming, a researcher at the State Grid Laiwu Power Supply Company in Jinan, China, this innovative approach promises to optimize the deployment of photovoltaic (PV) units and energy storage devices in both urban and rural distribution networks.

As distributed photovoltaics (DPV) become increasingly prevalent, the challenge of efficiently expanding PV units and allocating supporting energy storage devices has grown more pressing. Existing methods often overlook the distinct differences in resource distribution and load demands between urban and rural areas. WANG Qiming’s research addresses this gap by proposing a collaborative planning model that considers these variations, paving the way for a more integrated and efficient energy system.

The study, published in Zhejiang dianli, introduces a novel approach using the target cascade analysis method. This method allows for the decomposition and parallel iterative solving of the collaborative planning model, ensuring that the optimal configuration of PV and energy storage devices is achieved across diverse network conditions. “By decoupling the planning model and applying the target cascade analysis method, we can achieve a more economically beneficial and grid-friendly configuration,” WANG Qiming explains.

The implications of this research are far-reaching. For energy providers, this model offers a more cost-effective and efficient way to expand renewable energy infrastructure. By optimizing the allocation of PV and energy storage devices, utilities can reduce the impact on higher-level grids, leading to more stable and reliable power supply. This is particularly crucial for rural areas, where the distribution of resources and load demands can vary significantly from urban centers.

The study’s validation using a typical example system consisting of six distribution networks demonstrates the model’s effectiveness. The results show that the proposed model can achieve a coordinated planning of PV and energy storage devices across urban and rural distribution networks, resulting in a more economically beneficial optimal configuration scheme.

As the energy sector continues to shift towards renewable sources, the need for innovative solutions to integrate these sources into existing grids becomes ever more critical. WANG Qiming’s research represents a significant step forward in this direction, offering a practical and efficient method for optimizing the deployment of PV and energy storage devices. As the energy sector continues to evolve, this research could shape future developments in the field, driving towards a more sustainable and resilient energy future. The study was published in Zhejiang dianli, which translates to ‘Zhejiang Electric Power’ in English.

Scroll to Top
×