With the continuous advancement of technology and the declining cost of energy storage batteries, their application scenarios are constantly expanding, no longer limited to a single power grid field, but gradually penetrating into industrial and commercial, residential, and other fields, bringing convenience to production and life.
Grid-level energy storage is the main force of the current energy storage market, accounting for as high as 82% of the new installed capacity in 2025, with an average energy storage duration of about 2.5 hours. It mainly undertakes the functions of peak shaving, valley filling, frequency modulation, and standby power supply for the power grid, smoothing the volatility of wind and solar power, and improving the stability and reliability of the power grid. With the acceleration of the energy transition, the average energy storage duration of new energy storage is expected to reach 3.47 hours by 2030.
Industrial and commercial energy storage is developing rapidly, and its application model is constantly upgrading from a single fixed price difference arbitrage to fluctuating market price difference arbitrage, demand management, and demand response. Enterprises can use energy storage batteries to store electricity during low-price periods and use it during high-price periods, reducing electricity costs. At the same time, they can respond to the power grid’s demand response calls and obtain additional income. It is expected that the cumulative installed capacity of industrial and commercial energy storage will exceed 30GW in 2026.
Residential energy storage is gradually becoming popular, especially in regions with unstable power grids or high electricity prices. Residents can match energy storage batteries with household photovoltaic systems to store excess power generated by photovoltaic panels for use at night or when the power grid is cut off, realizing self-sufficiency in electricity and reducing dependence on the power grid. In addition, energy storage batteries also play an important role in off-grid and microgrid systems, providing stable power for islands, border posts, communication base stations, and other areas without grid coverage.