Overview
The increasing integration of solar, wind, and energy storage is transforming the power grid from one dominated by synchronous generators to one driven by asynchronous, inverter-based resources (IBRs). The behavior of these IBRs is dictated by their control systems, requiring new approaches to ensure grid stability and reliability.
Significant efforts are underway to enable IBRs to provide essential grid services traditionally delivered by conventional generation. A pioneering collaboration between First Solar, NREL, and CAISO demonstrated that utility-scale solar plants can enhance grid reliability while increasing the value of IBRs. Additionally, a groundbreaking study with a utility partner showed that flexible solar operation could yield substantial benefits, potentially providing over $130 million in annual value to the CAISO grid.
Further advancing IBR integration, the IEEE 2800 standard now establishes performance requirements for transmission-connected utility-scale IBRs, supporting their broader deployment. Looking ahead, the development of “grid-forming” inverters offers a transformative opportunity to address key challenges such as reduced system inertia and low short-circuit strength. This innovation paves the way for a more resilient, digitally enabled grid.
As the grid continues to evolve, developers and utilities must adopt new strategies for integrating and planning these resources to meet emerging challenges and unlock their full potential.
Speaker Bio
Dr. Mahesh Morjaria leads a team at Terabase developing advanced control solutions for solar and hybrid power plants. With nearly a decade at First Solar, he spearheaded utility-scale solar R&D and grid integration initiatives, establishing himself as a recognized industry leader in solar and power system innovation. Previously, at GE, he held key leadership roles, including significant contributions to wind energy. Mahesh holds an M.S. and Ph.D. from Cornell University.