While energy storage is already being deployed to support grids across major power markets, new McKinsey analysis suggests investors often underestimate the value of energy storage in their business cases. . The growing adoption of solar energy and electric vehicles (EVs) is driving demand for reliable, high-performance storage solutions, with lithium-ion batteries offering superior performance compared to lead-acid and nickel-metal hydride alternatives. Moreover, integrated smart battery systems and. . The global portable energy storage system market was valued at USD 4. 4 billion in 2024 and is expectations to reach USD 40. Investors could adjust their evaluation approach to get a true estimate—improving profitability and supporting sustainability goals. Asia-Pacific is emerging as the fastest-growing region, propelled by rapid urbanization and electrification initiatives. 2% during the forecast from 2026 to 2035. I need the full data tables, segment breakdown, and competitive landscape for detailed regional. .