BERLIN, March 7, 2026 /PRNewswire/ — Fox ESS, a number one supplier of renewable power options, has introduced a major milestone in power storage effectivity. The corporate has achieved a report System Efficiency Index (SPI) of 97%, securing the highest place and incomes an Effectivity Class A rating within the storage class by HTW Berlin and AQUU Analysis.
HTW Berlin, a number one German college of utilized sciences, is internationally acknowledged for its rigorous analysis in power storage applied sciences. Its annual ‘Power Storage Inspection’ studies are thought to be a few of Europe’s most credible evaluations, completely assessing power storage programs beneath sensible situations.
“This SPI of 97% is greater than only a quantity; it embodies our steadfast dedication to innovation and excellence in power storage options. We’re devoted to advancing the Energiewende initiative, making certain that everybody can profit from dependable and sustainable photo voltaic power.” mentioned Christoph Schön, the Common Supervisor of DACH area at Fox ESS.
Document Efficiency
The most recent report reviewed 12 programs, of which 8 had been evaluated utilizing the SPI (10 kW) metric. Fox ESS’s system, that includes the PQ-H3-Extremely-10.0 inverter and the EQ3300-5 battery, achieved a groundbreaking SPI of 97%. This excessive effectivity displays Fox ESS’s optimized design, which minimizes power conversion losses and enhances general system reliability for residential customers.
Ongoing Success
Final yr, Fox ESS’s H3 Hybrid Inverter and ECS system achieved an A-Class ranking with a efficiency index of 94.8% within the 10 kW residential storage system take a look at. Moreover, earlier this yr, the S&P International Power Residential Storage Index ranked Fox ESS because the No. 1 market share chief in Europe. In 2023, the corporate was additionally listed on Forbes’s Unicorn Record, additional solidifying its distinguished place within the business.
Up to now three years, Fox ESS has put in over 890,000 PV inverters and greater than 1 million batteries throughout over 70 international locations. Trying forward, the corporate stays dedicated to technological innovation, striving to ship high-performance merchandise tailor-made to buyer wants.
About Fox ESS
Based in 2019 and headquartered in Wenzhou, China, Fox ESS is a nationwide high-tech enterprise specializing within the R&D, manufacturing, gross sales, and repair of renewable power energy gear, with a robust give attention to superior energy electronics. Dedicated to world progress, Fox ESS has established a presence in over 70 international locations and areas, forging greater than 200 partnerships that drive innovation throughout Asia, Europe, the Americas, Africa, and Oceania. Guided by a customer-first philosophy, we ship high-efficiency renewable power options worldwide via innovation and distinctive worth.
