Photovoltaic (PV) energy storage systems offer notable value by significantly elevating users’ self-consumption rate of solar power. Currently, standalone PV systems typically achieve a self-consumption rate of less than 30%, but the integration of PV and energy storage technology drastically improves this figure, directly boosting users’ economic returns.

Renewable energy generation—including PV and wind power—is highly susceptible to weather-induced fluctuations. PV energy storage systems address this by rapidly and precisely storing surplus power, smoothing out short-term output volatility, mitigating peak load pressures, and ensuring solar energy is available on demand.
As the share of clean energy in the global energy mix expands and energy storage technology advances, PV-storage integration has emerged as a core competitive driver. Its future development will focus on multi-energy complementarity and the construction of the energy internet, playing a pivotal role in promoting energy conservation, emission reduction, and carbon footprint reduction. Looking ahead, the entire power system is poised for a major transformation in energy structure and development model, with PV energy storage at the forefront of this shift.