To achieve the target of tripling renewable energy capacity by 2030, the International Energy Agency estimates the world will require approximately 1,500 gigawatts of total energy storage. This significant increase in storage is necessary to manage the fluctuations of wind and solar power and maintain a steady electricity supply, according to the authors of the newly released report.
As the briefing details, the “International Energy Agency (IEA) has emphasized that energy storage is essential for tripling global renewable capacity by 2030, estimating that total storage capacity must reach approximately 1,500 GW by then.”
Put simply, wind and solar farms do not produce electricity at all times, so the world needs a way to save that power for later. To meet upcoming green energy goals, experts have calculated that we need to build enough storage space to hold 1,500 gigawatts of power, which would serve as a massive backup system to keep the global electrical grid running smoothly.
The report “Energy Storage Signals Shift to Renewable Grids” was published in March 2026 by the Global Energy Monitor. Prepared by lead author Ye Huang, the briefing analyzes the rapid global expansion of battery storage systems and their essential role in integrating variable wind and solar power into modern electricity grids.
