Against the backdrop of China’s “carbon neutrality” goal and green sustainable development supporting rural revitalization, accelerating the construction of wind- and solar-dominated renewable energy facilities requires scientifically grounded development strategies. This study conducts a refined assessment of the technically exploitable potential of solar and wind power generation in Naiman Banner by integrating high-precision satellite-derived solar radiation, high-resolution wind speed data, land use, and protected area boundaries, combined with advanced photovoltaic and wind power generation models. The results indicate that Naiman Banner possesses abundant wind and solar resources. The total rooftop photovoltaic potential reaches 13.5 TWh, with a spatial pattern characterized by higher potential in the southern and northeastern regions, and lower in the west and east. The total potential of optimally tilted fixed-angle photovoltaics is estimated at 24 TWh, mainly concentrated in the northwest, central, and northeastern areas, and lower in the south. At 100 meters height, the wind power generation is 18.4 TWh, with the highest values in the west, moderate in the central-southern region, and lower in the north. At 140 meters, the wind power generation increases to 20.8 TWh, with the highest values in the western and southeastern regions, and generally high potential across most other areas. The findings of this case study provide valuable insights for optimizing the planning and siting of PV installations, fostering the co-development of solar and wind energy, and advancing the rural revitalization strategy in Naiman Banner.