As a prototype, the Blatchford Lands virtual power plant (VPP) launches with 100 Sonnen batteries across the community, providing nearly 0.5 MW of power and more than 2 MWh of storage capacity to support the Canadian energy grid.
For those who combine solar, batteries, and electric vehicles (EVs) at home, driving on sunshine is a realistic goal. However, there are many factors to consider when analyzing the economic payoffs, as well as the technical possibilities and limitations of such systems.
The growth of European rooftop solar continues this year, with innovative companies raising capital to develop the market. It’s an encouraging trend with the potential to accelerate rooftop solar adoption. pv magazine correspondent Valerie Thompson takes a closer look.
The Allgäu company has expanded production at its headquarters in Wildpoldsried and can now produce around 120,000 systems a year. Sonnen’s move to accelerate expansion reflects the sharp rise in demand for PV home storage systems in Germany.
Made up of distributed residential energy storage, these “plants” stabilize the grid and often end the need for new fossil generation. Tesla customers in California are the latest to join the movement.
Sonnen has published test results indicating the longevity of its storage systems after extended use.
The latest version of the storage system from the German manufacturer can store up to 55 kWh. Sonnen ensures a lifespan of 10,000 charging cycles.
EuPD Research estimates around 65,000 energy storage systems linked to rooftop PV were installed last year thanks to increasingly popular solar arrays and electric vehicles as well as rising electricity prices.
With its sonnenVPP, German battery company Sonnen wants to improve the efficiency of virtual power plants which it says can offer primary balancing energy from houses with solar and storage and can operate up to 90% more cost-effectively.
The state government has partnered with the German energy storage company to offer 188 families locally assembled sonnenBatteries as they rebuild their homes.
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