Solar Photovoltaic (PV) System Expansion: Compatibility, Energy Efficiency, and Implementation Guide 1. Background and Necessity Early-installed PV systems generally fail to meet the growing energy demands of modern households and enterprises. Compared with replacing the entire system, expansion is a more economical option—but the core question remains: Can new and old PV technologies work synergistically? This guide, integrating the latest technical solutions, details the simplified path for system expansion, methods to improve compatibility, and economic benefits. 2. Core Drivers for PV System Expansion The global demand for PV system expansion is growing rapidly, mainly driven by four core factors: Sustained electricity price hikes: Taking California (USA) as an example, residential […]