Why are European households starting to add storage to balcony solar panels?

  • The average residential electricity price in Europe is about 0.29 euros per kilowatt-hour. The intraday electricity price spread widened from about 0.03 euros in 2020 to more than 0.15 euros in 2025. Energy storage can retain surplus solar power generated during the day for use in the evening, and the wider spread has increased the economic value of doing so.
  • Germany has simplified registration and eased limits on inverter capacity, the Netherlands plans to abolish net metering in 2027, and Belgium allows compliant plug-in devices to connect. The global balcony solar-plus-storage market reached 13.7 billion yuan in 2025, up 38.4% year over year.
  • In the German market sample, the median price per unit of capacity for balcony storage was 247 euros per kilowatt-hour, about one-third the price of conventional fixed home storage. Under the household electricity-use and PV-coverage scenarios set out in the report, the payback period was about 2.5 to 3.5 years.

How is Anker addressing demand for new installations and retrofits?

  • The company has gradually expanded from its first-generation Solarbank in 2023 to integrated solar-plus-storage products. Launched in 2026, the Solarbank 4 E5000 Pro has a base capacity of 5.024 kilowatt-hours and an expanded capacity of about 30 kilowatt-hours, meeting higher nighttime electricity needs. Its energy management system schedules charging and discharging based on weather, electricity prices, and household loads.
  • Solarbank Max AC targets households that already have rooftop solar panels; storage can be added while keeping the existing panels and inverter. As of October 2026, about 1.52 million balcony PV systems were registered in Germany, giving existing users an opportunity to add storage and creating demand beyond new customers.
  • The integrated form of balcony solar-plus-storage reduces reliance on professional installation networks, and the company can also reuse its consumer-facing consumer-electronics channels. In 2025, Amazon, the company’s own website, and offline channels accounted for 52.3%, 10.3%, and 29.8% of its revenue, respectively.

How is energy-storage growth reflected in assessments of performance?

  • Anker’s consumer energy-storage revenue was about 4.5 billion yuan in 2025, up 50% year over year, making balcony solar-plus-storage an important source of growth. The company’s non-GAAP net profit in the third quarter of 2026 grew 61.23% year over year.
  • Guotai Haitong Securities expects Anker’s attributable net profit for 2026 to 2028 to be 3.205 billion, 4.026 billion, and 4.976 billion yuan, respectively, representing year-over-year growth of 25.9%, 25.6%, and 23.6%. The corresponding price-to-earnings ratios are 20.05, 15.96, and 12.91 times, respectively.
  • The report cites volatility in overseas macroeconomic conditions and trade policies, foreign-exchange rates, and inventory impairment as risks.