Tesla Energy has once again claimed the top spot in the global battery energy storage system (BESS) market, marking its second consecutive year as the world’s leading integrator, according to Wood Mackenzie’s 2025 global BESS integrator rankings.
The report shows Tesla held a 15% share of the global market in 2024, maintaining its dominance amid mounting international competition.
While Tesla’s leadership remains intact, the margin is tightening. Chinese rival Sungrow boosted its market share to 14% in 2024, narrowing the gap to a single percentage point from the four-point lead Tesla enjoyed the previous year.
CRRC, another China-based manufacturer, retained third place globally with 8% market share.
Tesla’s performance was particularly strong in North America, where it commanded 39% of the BESS market—far ahead of the competition. Sungrow, despite holding second place, saw its regional share drop significantly from 17% to 10%. (via PV Magazine)
Meanwhile, Powin secured third place but faces financial uncertainty after filing for bankruptcy earlier this year.
Globally, the BESS landscape is becoming increasingly dynamic. The top 10 vendors struggled to expand their influence, with most seeing stagnant or declining shares. Notably, seven of those top players are now based in China, highlighting the country’s expanding role in the energy storage sector.
Chinese companies also surged in Europe, increasing their market share by 67% year-over-year. Four of the top 10 BESS vendors in Europe now hail from China.
However, the trend reversed in North America. Chinese integrators’ market share dropped from 23% to 16%, a decline attributed to rising geopolitical tensions and trade barriers introduced by U.S. policymakers.
Tesla’s energy division has also shown impressive operational strength. In Q2 2025 alone, the company deployed 9.6 GWh of energy storage systems, bringing its year-to-date total to 20 GWh—a 48% increase from the first half of 2024.
Over the past 12 months, Tesla has deployed nearly 38 GWh, putting it on track to exceed 100 GWh in cumulative deployments within the next two quarters.
