This analysis examines the roadmap from basic cost competitiveness to full system viability, providing investors and energy professionals with actionable insights for navigating this transition. Introduction: Redefining Parity in the Energy Transition. The global energy landscape is undergoing a transformative shift as integrated photovoltaic (PV) and storage systems approach a critical economic inflection point. While "energy parity" focused on matching traditional energy costs, the new era of "system parity" addresses comprehensive grid. . As the world's largest CO2 emitter, China's ability to decarbonize its energy system strongly affects the prospect of achieving the 1. 5 °C limit in global, average surface-temperature rise. To systematically interrogating the grid parity, Munoz et al.
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