| August 7, 2025 Tesla retains its top spot for the second consecutive year as the leading global producer in the battery energy storage system (BESS) integrator market with a 15% market share in 2024, according to Wood Mackenzie’s Global battery energy storage system integrator ranking 2025 report. Chinese competitor Sungrow is narrowing the gap though, holding onto second place with 14% market share, reducing Tesla’s lead from four percentage points in 2023 to just one point in 2024. Fellow Chinese manufacturer CRRC rounded out the Top 3 with 8% market share. For the North American market specifically, Tesla held the top spot with 39% market share. Sungrow retained its second-place rank but fell from 17% to 10% market share in 2024. Powin took the third spot in North America. Despite being a Top 3 market player, Powin filed for bankruptcy earlier this year. Wood Mackenzie’s report reveals stark regional disparities in market dynamics. Chinese BESS integrators saw their European market share surge by 67% year-over-year, with four of the top 10 European players now headquartered in China. Conversely, Chinese companies’ North American market share declined by over 30%, falling from 23% to 16%, primarily due to escalating U.S.-China geopolitical tensions and increased U.S. trade protectionism. Tesla megapack. Credit: DSD Renewables “Competition among established BESS integrators remains incredibly intense,” said Kevin Shang, principal research analyst, energy storage technology and supply chain for Wood Mackenzie. “Seven of the top 10 vendors last year struggled to expand their market share, remaining either unchanged or declining.” Seven of the global top 10 BESS integrators are now headquartered in China, reflecting the country’s growing influence in the sector. However, intense domestic competition and oversupply have forced Chinese companies to expand aggressively into overseas markets, particularly Europe and the Middle East. Wood Mackenzie ranks vendors by the number of shipments in megawatt-hour (MWh). Only shipments with revenue recognized in the reporting year are counted toward the market share. “The global BESS integrator landscape is becoming increasingly complex, with regional trade policies and geopolitical tensions reshaping competitive dynamics,” said Kevin Shang, Principal Research Analyst at Wood Mackenzie. “While Tesla maintains its global leadership, the rapid rise of Chinese integrators in Europe and their dominance in emerging markets like the Middle East signals a fundamental shift in the industry. Success will increasingly depend on companies’ ability to navigate diverse regulatory environments, adapt to local market requirements, and maintain competitive cost structures across multiple regions.” About The Author