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Tesla Extends Lead in Global Battery Storage as Deployments Surge

Strong second-quarter growth positions Tesla for a record 100 GWh of deployed capacity this year.

Tesla megapack. Credit: DSD Renewables

Overview

  • Tesla retained a 15% share of the global BESS integrator market in 2024, outpacing Sungrow by one percentage point.
  • Tesla deployed 9.6 GWh in Q2 2025 and 20 GWh year-to-date, a 48% increase over H1 2024 and on pace for 100 GWh this year.
  • Chinese integrators boosted their European market share by 67% year-over-year, with four of the top ten European vendors now based in China.
  • Chinese companies’ North American share fell from 23% to 16%, a drop of over 30% driven by U.S.-China geopolitical tensions and heightened trade protectionism.
  • Seven of the global top ten BESS integrators are headquartered in China, and vendors are adapting to diverse regional regulations and cost pressures to compete.