Abstract:With the explosive growth of coal-to-electricity loads in the distribution network, traditional power grids are facing severe challenges such as heavy overloading and three-phase imbalance. This paper, centered on the marketing business scenario, relies on the "One Grid Diagram" platform to conduct in-depth analysis of the number of substations, lines, transformers, and households related to "coal-to-electricity" as well as the load of transformer districts (both real-time and historical). By rendering abnormal lines and transformer districts with heat maps, it achieves device location and highlighting display, thereby enabling real-time control over the scale and operational status of coal-to-electricity equipment. Combining historical transformer district loads, meteorological conditions, and holidays, a transformer district load forecasting model is constructed, which not only realizes short-term load forecasting but also monitors load trends on the map. Additionally, through abnormal analysis of load forecasting, potential risks of transformer districts can be warned in advance. This paper fully leverages the foundational platform role of the "One Grid Diagram" in digital transformation, deeply integrates business scenarios with the power grid map, enhances the application of marketing business scenarios, improves the practicality of the One Grid Diagram, and effectively promotes the company''s digital transformation and upgrading.