{
  "meta": {
    "key": "grid_battery",
    "title": "Grid Battery Storage",
    "unit": "GWh",
    "category": "Energy",
    "source": "BloombergNEF / Rystad / Wood Mackenzie",
    "sourceUrl": "https://www.woodmac.com/news/opinion/global-energy-storage-market-surpasses-100-gw-annual-installation-milestone-in-2025/",
    "verified": "2026-09-06",
    "url": "https://exponentialtracker.com/curve/grid_battery",
    "csv": "https://exponentialtracker.com/data/grid_battery.csv",
    "json": "https://exponentialtracker.com/data/grid_battery.json",
    "retrievedFrom": "Compiled by Exponential Tracker and re-derived from the source named above. Rebuilt on every deploy, so re-fetch rather than trusting a saved copy to be current.",
    "rights": "The underlying data belongs to BloombergNEF / Rystad / Wood Mackenzie. This compilation may be reused with attribution to Exponential Tracker. No licence is claimed or implied over the source data.",
    "citation": "Exponential Tracker, \"Grid Battery Storage\", exponentialtracker.com/curve/grid_battery, data verified 2026-09-06. Underlying source: BloombergNEF / Rystad / Wood Mackenzie."
  },
  "data": [
    {
      "year": 2013,
      "value": 0.3,
      "label": "~300 MWh globally"
    },
    {
      "year": 2015,
      "value": 1.5
    },
    {
      "year": 2016,
      "value": 5.3
    },
    {
      "year": 2017,
      "value": 7
    },
    {
      "year": 2018,
      "value": 17,
      "label": "Cost parity approaching"
    },
    {
      "year": 2019,
      "value": 23
    },
    {
      "year": 2020,
      "value": 34.3
    },
    {
      "year": 2021,
      "value": 56
    },
    {
      "year": 2022,
      "value": 91
    },
    {
      "year": 2023,
      "value": 175
    },
    {
      "year": 2024,
      "value": 375,
      "label": "375 GWh cumulative"
    },
    {
      "year": 2025,
      "value": 630,
      "label": "~630 GWh (Wood Mackenzie)"
    }
  ]
}