With the synchronous interconnection of southern region to central grid, the Indian power system has turned into one of the largest operating synchronous grid in the world with about 234 GW of installed power generation capacity and thereby achieving ‘ONE NATION’-’ONE GRID’-’ONE FREQUENCY’ system. Although the Indian power system as a whole has worked very well up to now, with this interconnection it could be even more challenging in securing and maintaining reliability into its future operations. Furthermore, strains on the system are increasing for several reasons, and evolving requirements will create even more pressure. These issues can and are being addressed, of greater concern for the future are problems associated with the integration of intermittent renewable resources, such as wind and solar power, and disruptions caused by terrorism, natural disasters or climate change. The impact of intermittent renewables on the grid and how the grid can be modified to handle them will be discussed. Terrorism or massive natural disasters could inflict considerable damage on critical components of the grid. The physical damage they could do has long been understood. However, cyber attacks have received considerable attention only recently. The increasing sophistication and ability of hackers and saboteurs to disrupt service is being addressed in the article.
Renewable Energy, Power system, Grid Security, Challenges
