Thomas Bareiß, Parliamentary State Secretary at the Federal Ministry for Economic Affairs and Energy, attended an official event to mark the system’s commissioning at a house outside Berlin.
He said it represented an “important milestone” in the nation’s transition to clean energy, with battery costs having more than halved across the country since 2013.
There were around 50,000 systems installed by mid-2017 – the country’s energy industry aims to reach 200,000 systems in the next two years.
As batteries and distributed energy technologies have become more affordable, grid operators have more flexibility options available to balance capacity and boost energy security.
Badische Stahlwerke, the nation’s national solar trade group, thanked the German public for their continued investments in the technology and said the incentive programme put in place by the government five years ago had played a vital role.