The theoretical potential map presents the result of analyzing the solar energy reaching Gyeonggi-do using satellite observation data.
It uses solar irradiance observed over five years (2020-2024) by the Korea Meteorological Administrations GK-2A (Cheollian-2A) satellite, analyzed at a 10 m grid resolution to estimate the total solar generation potential across Gyeonggi-do.

The technical potential map presents the result calculated only for areas where solar facilities can actually be installed.
Using Gyeonggi-dos aerial LiDAR 3D building model, rooftops (rooftop type) and open land without buildings (ground type) are distinguished, and areas requiring natural conservation such as forests, rivers, and wetlands are excluded based on the Urban Ecological Status Map.
The efficiency at which solar panels convert solar energy into electricity (about 20%) is also reflected to estimate the technically usable potential.

The market potential map presents the final result retaining only areas where a solar business is actually feasible.
Areas legally restricted from solar installation, such as cultural heritage protection zones and development-restricted zones, and areas with slopes of 20 degrees or more or high landslide risk are excluded.
In addition, areas where the levelized generation cost exceeds the electricity sales revenue (SMP+REC) and thus lack economic feasibility are excluded. The economic analysis applies the latest 2024 generation cost basis to reflect realistic business feasibility.