The current system's reliability and stability are impacted since it is designed to operate under extremely stressful circumstances in order to meet the growing demand for electric power. The power transfer capacity of the line was increased by using series capacitors; however, there were issues with wear and tear and slow response. With the introduction of power electronics-based FACTS devices, there is an opportunity to increase power transfer on existing lines without the need for new stations and lines. In the present paper, the Load Flow Analysis (LFA) of the system with Thyristor-Controlled Series Capacitor (TCSC) is done with three firing methods. The work is further extended by connecting two TCSCs with the line. Here, two different cases are developed. In the first case, the TCSC inductor (L) rating is halved and the capacitor (C) rating is doubled (compared to an ordinary single TCSC), and the results are analyzed. In the second case, the ratings of L and C are kept the same as those of an ordinary single TCSC. The novelty is that LFA has been carried out for the system without TCSC, with a single TCSC, and with two modules of TCSC (two cases), with three different firing methods. It focuses on determining the power generation from the LFA report without TCSC and with TCSC in the system with different firing methods. The LFA provides information about the current system as well as the future plans for its expansion, and TCSC is used to meet the rising power demand problem.