German home storage manufacturer Sonnen has lowered its prices for energy storage systems. This move comes at a time when the PV storage market in several European countries is experiencing a significant cooling. After years of strong growth, demand for photovoltaic systems and battery storage is declining – due to eliminated subsidies, rising interest rates, and a certain market saturation in the residential segment.
Price pressure from Chinese providers
Sonnen, a premium provider in the home storage industry for years, is facing increasing competitive pressure. Chinese manufacturers are entering the European market with significantly cheaper systems and gaining market share. The price reduction can therefore be interpreted as a defensive reaction: To compete with Sonnen and other European providers, the company must reduce its margins.
At the same time, this step signals an offensive growth strategy. In a stagnating market, lower prices can open access to more price-sensitive customer segments. Sonnen is thus positioning itself more broadly – moving away from a pure premium image toward larger market volume. This is particularly relevant because the integration of energy management systems and virtual power plants represents an important business field for Sonnen.
Impact on competition
The price reduction puts other providers under pressure. Manufacturers like SolarEdge, Schneider Electric, or German mid-sized companies must follow suit or differentiate themselves through service, warranty, and system integration. The trend toward declining storage prices is positive for installers and end customers, but intensifies margin pressure throughout the market.
For electrical installers, this development means: Customers increasingly expect complete solutions for self-consumption optimization – including PV system, storage, inverter, and intelligent load management. Those who only focus on product sales will fall behind. System integrators who provide planning, installation, and commissioning from a single source are in demand.
Signal for the industry
Sonnen's price reduction is a clear sign: consolidation in the home storage market has begun. Providers who cannot scale or achieve cost advantages will be pushed out of the market in the medium term. The connection to virtual power plants and energy services will become the decisive differentiation feature – pure hardware sales alone are no longer sufficient.
