Market Opportunities - Energy Storage Systems
New business models are being developed to build the base for the economic operation of PV systems beyond the feed-in tariff scheme. The large pool of installed PV systems is a pillar for the development of the energy storage systems market.
Germany was the leading market for residential battery storage systems in 2021. Around 150,000 home batteries were installed, resulting in 1.3 GWh of additional capacity. In 2022, the home storage systems (HSS) market recorded annual battery-energy growth of 52 percent, making it the largest stationary storage market in the country.
The emerging market for industrial storage systems (ISS) grew by 24 percent in 2022, with a total of 1,200 ISS (0.08 GWh/0.04 GW) installed.
The market for large-scale storage systems (LSS) increased dramatically by 910 percent with 47 LSS (0.47 GWh/0.43 GW) commissioned. Market analyst SolarPower Europe expects annual installations to reach 2.6 GWh in 2026 - about twice as much as in 2021.
The very high attachment rate between batteries and residential solar - estimated in the range of 80 percent - shows that R-BESS will become almost part of a standard solar system in Germany. This will ensure stable market expansion as long as the home rooftop market continues to grow. Retrofit storage installations will also be a major driver for improving energy self-sufficiency in private households and commercial operations.
The inverter market continues to profit from the large base of existing PV installations as well as new inverter systems (such as hybrid and micro inverters for new PV systems). Innovative data management systems and new tools for optimizing PV systems efficiency and operations are other promising fields within the German PV market.
