Fox ESS has been ranked the number one provider of residential energy storage systems across Europe, the UK, and Poland for the first half of 2025, according to the S&P Global Energy Residential Energy Storage Index. The ranking, based on megawatt-hour shipments, marks a major milestone for the global renewable energy company and reflects its rapid growth in an increasingly competitive market.
The result highlights strong demand for reliable, high-quality home battery systems as households prioritise energy independence, bill reduction, and greater control over electricity use. It also reinforces Fox ESS’s position as a trusted provider of residential energy solutions at scale.
A complete ecosystem for modern homes
At the core of Fox ESS’s success is its ecosystem approach to home energy. The company offers a full suite of residential products, including solar inverters, battery storage systems, EV chargers, and heat pumps, all designed to work seamlessly together. This integrated design improves system efficiency, simplifies installation, and delivers a smarter and more sustainable energy experience for homeowners.
“Energy independence should be within everyone’s reach,” said Michael Zhu, CEO of Fox ESS. “That’s why we focus relentlessly on quality, performance, and value for money, so our customers can generate, store, and use their own clean energy with complete confidence.”
Built for installers and long-term performance
Fox ESS products have earned a strong reputation among installers, who value their clean design and straightforward installation process. Faster installation times reduce labour costs while maintaining consistent performance and reliability for homeowners. This installer-focused approach has supported Fox ESS’s rapid expansion across multiple European markets.
For homeowners, the focus on simplicity translates to systems that are easy to operate and built for everyday use. The emphasis is on long-term value rather than unnecessary complexity, helping ensure reliable performance over the life of the system.
Strengthening installer partnerships globally
Fox ESS is actively deepening relationships with installers worldwide. The company has recently launched a dedicated installer program, already live in Germany, with plans to expand region by region. The program offers tailored support, training, and benefits, recognising installers as essential partners in delivering high-quality residential energy systems.
By investing in installer education and support, Fox ESS helps ensure systems are installed correctly and perform as designed, while also building a strong brand community across global markets.
Supply chain resilience and product quality
Behind its market success is a highly optimised global supply chain supported by rigorous quality control processes. Every Fox ESS product is manufactured to meet strict standards before leaving the factory, helping reduce faults and improve long-term reliability.
Local service teams operate across key markets, providing fast, professional support whenever it is needed. This ongoing service capability ensures homeowners and installers receive assistance well beyond the initial installation.
“Our 400-strong R&D team is constantly analysing real-world installations and customer feedback,” Zhu said. “This hands-on approach lets us fine-tune our products for different climates, regulations, and usage patterns, which keeps us ahead in a fast-changing industry.”
Supporting the clean energy transition
Residential battery storage is playing an increasingly important role in the global energy transition. Home batteries help stabilise electricity grids, maximise the use of rooftop solar, and reduce peak demand, enabling higher penetration of renewable energy sources.
With strong shipment volumes across Europe and beyond, Fox ESS systems are contributing to these outcomes at scale, supporting more resilient and decentralised energy networks.
Positioned for continued growth
The latest S&P Global ranking reflects sustained momentum rather than short-term success. With an ongoing focus on innovation, quality, and customer satisfaction, Fox ESS is well-positioned to shape the future of residential energy storage as global demand accelerates.
As home energy storage becomes a core part of modern energy systems, Fox ESS’s rise signals a broader shift toward smarter, cleaner, and more self-sufficient homes.
