{
  "title": "Annual BESS additions in ERCOT are leveling off, and the pipeline points lower for 2027",
  "subtitle": "BESS capacity reaching commercial operation in ERCOT by year, with commissioning units and a 2027 estimate (GW)",
  "chart_type": "stacked_bar",
  "source": "ERCOT, Modo Energy",
  "note": "2027: about 3.7 to 4.8 GW (midpoint shown): 39% to 58% of the 5.9 GW with an interconnection agreement and financial security, plus 1.4 GW of units testing or synchronized.",
  "axes": {
    "x": {
      "label": "Year",
      "type": "category"
    },
    "y": {
      "label": null,
      "type": "number",
      "unit": "GW"
    }
  },
  "data": [
    {
      "Year": "2022",
      "Commercially operational": 1.2,
      "Commissioning, dispatching": 0.0,
      "Commissioning, testing": 0.0,
      "Commissioning, synchronized only": 0.0,
      "Pipeline-based estimate": 0.0
    },
    {
      "Year": "2023",
      "Commercially operational": 1.96,
      "Commissioning, dispatching": 0.0,
      "Commissioning, testing": 0.0,
      "Commissioning, synchronized only": 0.0,
      "Pipeline-based estimate": 0.0
    },
    {
      "Year": "2024",
      "Commercially operational": 3.9,
      "Commissioning, dispatching": 0.0,
      "Commissioning, testing": 0.0,
      "Commissioning, synchronized only": 0.0,
      "Pipeline-based estimate": 0.0
    },
    {
      "Year": "2025",
      "Commercially operational": 6.05,
      "Commissioning, dispatching": 0.0,
      "Commissioning, testing": 0.0,
      "Commissioning, synchronized only": 0.0,
      "Pipeline-based estimate": 0.0
    },
    {
      "Year": "2026",
      "Commercially operational": 4.75,
      "Commissioning, dispatching": 1.41,
      "Commissioning, testing": 0.0,
      "Commissioning, synchronized only": 0.0,
      "Pipeline-based estimate": 0.0
    },
    {
      "Year": "2027 (est.)",
      "Commercially operational": 0.0,
      "Commissioning, dispatching": 0.0,
      "Commissioning, testing": 0.96,
      "Commissioning, synchronized only": 0.4,
      "Pipeline-based estimate": 2.86
    }
  ]
}