Sonnenbatterie has selected SK Solar USA, a solar installer and distributor, to operate the center, while its energy storage units are currently being installed and tested at various locations throughout Southern California.

Sonnenbatterie, which has sold around 2,500 energy storage units in Germany, Austria, Switzerland, Italy and Spain, since 2011, plans to start sales operations later this year.

Sonnenbatterie co-founder and CEO Christoph Ostermann said the company is looking forward to earn the same trust and market leadership in the US.

"Sonnenbatterie is the most trusted name in Germany for smart energy storage thanks to their reliability and ease of use," Ostermann added.