CDG Group, in partnership with EGAT, has developed a comprehensive system for map data provision and management of the transmission and high-voltage power network. This system handles power transmission, spatial management, and land rights and property management within the high-voltage infrastructure. It also manages data related to power generation assets, government agencies, private sectors, and the public interacting with high-voltage transmission lines. The geographic information system stores data on high-voltage power stations, right-of-way (ROW) areas, power pole locations, transmission line routes, forests, transportation routes, water boundaries, land plots, land valuation, and other property details, including aerial and satellite imagery. Surveys and data collection are conducted at 1:50,000 and 1:4,000 scales, depending on the application.

The high-voltage power geographic information system is extensively used across the organization, encompassing headquarters, operational divisions, and nationwide power stations. Accessible via web and mobile applications, an organization-wide geographic information system (EGAT GIS Portal) provides centralized map services. It facilitates planning, decision-making, design, construction, maintenance, and power system service provision. Additionally, it enables the creation of maps and reports for crucial data types, serving management, engineers, and general users.

GIS plays a vital role in streamlining data recording and surveying. It covers a wide range of data, including power infrastructure like poles and lines, land plots, trees, buildings, and internal high-voltage power network information. It also incorporates property ownership records, valuation, and replacement costs. Leveraging digital orthophotos from LiDAR technology, it facilitates diverse data categorization and surveying, notably for detecting right-of-way encroachments and assessing power line sag distances. This system identifies maintenance areas and conserves the high-voltage power system while enabling the creation of new transmission routes from domestic and international power sources.