What is Sonnen?
Headquartered in Wildpoldsried, Germany, with a strategic presence in Los Angeles, Sonnen is a market leader in the development and manufacturing of next-generation smart energy storage systems. Since its inception in 2010, the firm has pioneered lithium-based storage solutions ranging from 4 kWh to 16 kWh, designed to empower residential and commercial users to optimize their energy consumption. By integrating advanced battery technology with intelligent software, Sonnen enables users to store excess renewable energy, thereby increasing self-consumption and reducing reliance on traditional utility grids. The company's commitment to innovation has resulted in thousands of installations across Europe, establishing a robust foundation for its ongoing mission to decentralize the energy landscape.
How much funding has Sonnen raised?
Sonnen has raised a total of $96.6M across 3 funding rounds:
Series A
$2.3M
Series B
$9.3M
Private Equity
$85M
Series A (2013): $2.3M with participation from eCapital
Series B (2014): $9.3M led by Munich Venture Partners, eCapital, and SET Ventures
Private Equity (2016): $85M supported by eCapital, MUNICH VENTURE PARTNERS, GE Ventures, Inveni Capital, Envision Energy, and SET Ventures
Key Investors in Sonnen
Munich Venture Partners
Munich Venture Partners is a European venture capital firm focused on investing in technology companies that drive the eco-industrial revolution, supporting sectors such as energy transition and industrial tech.
SET Ventures
SET Ventures is a leading energy technology venture capital firm in Europe that focuses on investing in and scaling solutions for the digital energy economy, including distributed energy systems.
GE Ventures
GE Ventures is the investment arm of General Electric, focusing on global infrastructure and technology sectors including renewable energy, power generation, and industrial automation.
What's next for Sonnen?
Looking ahead, Sonnen is poised to leverage its recent capital injection to deepen its penetration in key global markets, particularly in North America. The strategic focus will likely center on scaling production to meet rising demand for grid-resilient infrastructure and enhancing the digital capabilities of its energy management ecosystem. As the energy sector continues to prioritize decarbonization and automation, Sonnen is well-positioned to capitalize on the integration of distributed energy resources. Future growth will be driven by the continued refinement of its smart battery technology and the expansion of its virtual power plant initiatives, which aim to transform individual storage units into a cohesive, flexible energy network capable of stabilizing regional power grids.
See full Sonnen company page
