Tesla has once again claimed the top spot in the global battery energy storage system (BESS) integrator market, according to Wood Mackenzie’s latest 2025 ranking report (via Solar Power World). With a 15% global market share in 2024, the company led the sector for the second year in a row, driven by strong momentum for its Megapack energy storage systems.
Chinese competitor Sungrow is closing in, however, narrowing Tesla’s lead to just one percentage point, up from a four-point gap in 2023. Sungrow now holds a 14% share globally, while CRRC took third place at 8%.
Tesla’s dominance is even more pronounced in North America, where it commanded 39% of the market in 2024. Despite retaining its No. 2 spot, Sungrow’s share in the region dropped sharply from 17% to 10% last year. Powin ranked third, although the U.S.-based firm filed for bankruptcy earlier this year.
The report highlights widening regional disparities. Chinese integrators grew their market share in Europe by 67% year-over-year, now accounting for four of the top 10 European vendors. Meanwhile, their share in North America plunged more than 30%, largely due to escalating U.S.-China trade tensions and protectionist policies.
“The global BESS integrator landscape is becoming increasingly complex,” said Kevin Shang, Principal Research Analyst at Wood Mackenzie. “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.”
Tesla’s Megapack systems continue to play a key role in global grid infrastructure. The company recently celebrated the 1,000th Megapack produced at its Shanghai Megafactory, a milestone that follows last year’s production of 10,000 units at its Lathrop, California, plant. Megapacks were also tapped to power China’s largest grid-scale battery power plant back in June.
Earlier this week
Tesla landed a massive $2.7 billion order for Megapacks from Georgia Power. To better serve the growing demand for energy storage capacity, Tesla recently signed a $4.3 billion deal with LG Energy Solution for U.S.-made LFP batteries, reportedly for use in products like the Megapack.
