HBRP Publication Page 1-7 2021. All Rights Reserved Page 1 Journal of Research and Advancement in Electrical Engineering Volume 4 Issue 2 Study of the Change in Ramp Rate of the Grid Due to Solar PV Penetration with a Case Study Jadeer Nahiz 1 *, Prof. P.S. Swami 2 1 Post Graduate Student, Electrical Power Systems, Department of Electrical Engineering, Govt. College of Engineering, Aurangabad, Maharashtra, India 2 Associate Professor, Dept. of Electrical Engineering, Govt. College of Engineering, Aurangabad, Maharashtra, India *Corresponding Author E-Mail Id: jadeernahiz@gmail.com ABSTRACT This paper follows the study carried out by the California Independent Systems Operator (CAISO), which deals with a sudden decrease or sudden increase in the morning and evening demand, respectively, caused by solar energy availability in the morning and non-availability in the evening. This study is popularly called the study of the duck curve. With an increase in solar rooftop installations, the grid flexibility and hence reliability get challenged. In this paper, the fact is established that the duck curve is a problem the Indian grid may face in the coming years. Then this fact is challenged by a case study carried out on a randomly selected feeder. The purpose of this study is to check the issues posed by the duck curve and advance towards stable, reliable, and cost-effective performance of the grid in the face of the challenges of intermittence and unreliable distributed generation on the mass level. Keywords: Ramp rate, demand, solar PV, over generation INTRODUCTION In 2019, India's total installed electricity capacity was almost 360 gigawatts, with the renewable sector accounting for 80 gigawatts. In the same year, the country had the world's second-largest solar power facility, with a capacity of over 2,000 megawatts. With sunshine accessible for roughly 300 days a year, the government has undertaken efforts to increase the usage of solar power in the country. In recent years, the value of large-scale solar project tariffs has fallen. The urban and rural parts of the population have both contributed to the change. Management of the rise in demand for solar rooftop electricity which comes with a high degree of intermittence, into the main grid is a challenge. The only significant issue with solar rooftop, along with the high initial cost, is its unreliable nature. Grid operators cannot control this source of electricity. So, the grid operators must make the grid responsive in times of intermittence. This problem of sudden increase or decrease in the solar generation is a challenge. This challenge is not just posed by solar PV but also by wind generation. When solar PV and wind generation are employed on a large scale, they directly affect the reliability and stability of the power system. More solar PV and wind integration scale will be intermittent, and more peaks and holes will be observed in the load curve. The peaks and pits in the load curve pose high ramp rate issues on the conventional grid. The conventional generators are forced to handle significant demand in a lesser duration of time, which is called ramping, but these generators have a specific limit to their ramping capacity. Several standards are devised to address the needs of generators for their stable and long- lasting performance. Adhering to these