SC-28 Solar Plant Substation - 115 kV Solar Interconnection Substation in the United States

SC-28 Solar Plant Substation is an operational electrical substation located in the United States, with coordinates 33.349550, -81.269001. It serves as a key interface for a solar plant, stepping up voltage to 115 kV for transmission into the regional grid. The facility is part of the growing renewable energy infrastructure in the country. The substation operates at a voltage level of 115 kV, which is typical for medium-voltage transmission and distribution interconnection points. In the United States, such facilities are subject to NERC reliability standards and FERC regulation, ensuring grid stability and compliance with interconnection requirements. The substation likely includes switchgear, transformers, and protection systems aligned with ISO/IEC 61850 standards for automation. As a solar plant substation, this facility plays a critical role in integrating renewable energy into the grid, supporting the transition to cleaner power sources. Its location in the southeastern US contributes to regional energy diversity and reliability, serving both local communities and broader grid operations.

The substation is located in a rural area of South Carolina, near agricultural and forested lands. Its operation supports solar energy generation, reducing reliance on fossil fuels and lowering carbon emissions. The 115 kV voltage level indicates a moderate scale of power transfer, with minimal direct environmental footprint beyond land use for the substation footprint and transmission corridors.