The price range for residential energy storage systems is typically between 25,000 and 62,000 yuan, depending on the capacity, configuration, and whether a photovoltaic (PV) system is included.
Standalone energy storage system (excluding PV): Unit cost is approximately 2,500–3,500 yuan/kWh. For example, a 10kWh system costs between 25,000 and 35,000 yuan.
Integrated PV and energy storage system (including PV): Unit cost is 3,000–4,000 yuan/kWh. A mainstream 15kWh configuration costs approximately 58,000–62,000 yuan, but after subsidies, the actual expenditure can be as low as 48,000–57,000 yuan.
Small-capacity emergency system: A 5kWh wall-mounted system costs approximately 13,000–15,000 yuan, suitable for basic loads such as refrigerators and lighting.
Large-capacity villa-level: Due to economies of scale, the unit cost of a 100kWh modular system can be as low as 2000 RMB/kWh, with a total cost of approximately 200,000 RMB.
Key factors affecting the price include:
Battery cost: Accounts for 55%–70% of the total cost; the mainstream procurement price for lithium iron phosphate batteries is 1200–1400 RMB/kWh (SMIC National Reserve);
Inverter and BMS: High-end inverters support AI scheduling and 10ms-level off-grid switching, increasing their premium;
Installation and auxiliary materials: Standardized installation can reduce costs by 10%, while installation fees for high-rise residential buildings increase by 20%.
