## 3 Results
This suitability was attributed to favorable characteristics, such as optimal solar radiation levels, appropriate land use types, and minimal geological risks, making it a prime location for solar energy development. As part of the study, after determining the suitable locations for PV installations, a comparison was conducted with the existing PV installations. Figure 5 shows the suitability map of PV farms according to the types of PVs in the city. Regarding roof-top PV systems, these were found to be concentrated in the northern industrial areas of the city center, particularly installed on buildings within that zone. This indicates a trend where industrial facilities take advantage of available roof spaces for solar energy generation, leveraging the proximity to urban electricity demands. While data for both roof-top PV and PV farms were collected for Gaziantep, the primary focus was to compare suitable areas with the locations of PV farms. When analyzing the distances of PV farms from the city center, it was observed that the farthest farm was located 66.1 km to the southwest of the city center, while the nearest one was 8.7 km to the southeast of the center. Similarly, it was observed that the farthest PV farm under construction was located near the existing farthest PV farm, approximately 62.5 km away. Additionally, the nearest PV farm under construction was being established 19.9 km to the southwest of the city center. These PV farms' sizes range from approximately 6808.1 m\({}^{2}\) to 386,267 m\({}^{2}\), while the PV farms under construction have sizes ranging from 29,777 m\({}^{2}\) to 449,898 m\({}^{2}\). It was observed that the largest PV farm in the city is expected to be completed in the coming years. PV farms were predominantly located outside the city center area, aligning more closely with areas identified as suitable. Upon examining the existing PV farms, it was found that four PV farms were located in unsuitable areas, while one PV farm was locatedin a low suitability area. It was observed that these PV farms were close to the city center and to the east and west of the center. Additionally, the distribution of PV farms across different suitability areas was as follows: 24 PV farms were located in suitable areas, 17 in moderately suitable areas, and 14 in highly suitable areas. As a result, approximately 92% of the existing PV farms fall within suitable to highly suitable areas. It was observed that eight existing PV farms were located in the western part of the city, which were situated within suitable and moderately suitable areas in that region. Therefore, despite the fact that suitable areas were limited in the western part of the city, it can be inferred that the placement of these PV farms may have been strategic considering the available suitable areas. In addition, three PV farms were located in the northern part of the city, within suitable and moderately suitable areas, while most of the remaining PV farms were located in the southern part of the city, in areas with varying levels of suitability. This indicates that the majority of PV farms are established in areas with high potential for solar energy generation, as identified by the suitability analysis. It was observed that there were currently seven PV farms under construction, of which three were located in moderately suitable areas and four were located in highly suitable areas. One PV farm was located in the western part of the city and one in the northern part. The remaining PV farms were situated in the southern region. It was observed that the PV farms in the western part of the city were being built within highly suitable areas, while those in the northern part were being built in moderately suitable areas. This indicates that a substantial portion of the ongoing projects are being developed in areas identified as favorable for solar energy generation, with the majority falling within the higher suitability zones. Figure 5 provides a visual representation of PV farms on the suitability map and Google Earth.