Electricity prices boost home energy storage systems sales

And more and more homeowners seem to be concluding. Not only do you mount a photovoltaic (PV) system on the roof, you also put a home energy storage system in the basement, the garage - or wherever it fits. According to a survey by the Bonn market research institute EuPD Research in the first half of 2020, around 63,000 new small-scale PV systems with a peak output of up to 10 kilowatts were installed in Germany. That is an increase of 56 percent compared to the previous year. The home energy storage business grew even faster, by 59 percent: 46,000 systems were installed in the first half of 2020 - as many as in the entire previous year. For the year as a whole, EuPD is now forecasting a total market of around 88,000 systems. That would still be an increase of 35 percent compared to the previous year. EuPD asked component manufacturers and installation companies, but also end customers, about this.

In this context, Sonnen (Germany) consolidated its top position and increased its market share to 21 percent. Behind them are the Chinese manufacturer BYD and two other German manufacturers with E3 / DC and Senec.

Sonnen manager Mathias Bloch sees the reasons for the widening gap between the feed-in tariff and the consumer price for green electricity. "It is more the case that renewable energies are becoming more and more relevant for many people in everyday life and that they have arrived on the market, that energy storage systems are mature, sensible and affordable for many people. It is often the case with new technologies that they have broadly adopted from a certain point onwards. "

Another driver is the growing spread of electric cars: "This is the ideal addition to the eco-system ." For this, it is necessary to buffer the electricity generated during the day, ideally, with a home energy storage system with the appropriate capacity. The top model from Sonnen can store up to 55 kWh of electricity - and that for up to 20 years. Bloch: "The lithium iron phosphate technology has proven to be very durable and safe."