{
  "title": "Ireland residential and data-center metered electricity use",
  "unit": "GWh",
  "geography": "Republic of Ireland",
  "years": [
    2015,
    2025
  ],
  "updated": "2026-07-07",
  "accessed": "2026-11-06",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://www.cso.ie/en/aboutus/whoweare/copyrightpolicy/",
    "attribution": "Central Statistics Office, Ireland"
  },
  "sources": [
    {
      "id": "dc",
      "title": "CSO Data Centres Metered Electricity Consumption 2025, Table 1",
      "url": "https://www.cso.ie/en/releasesandpublications/ep/p-dcmec/datacentresmeteredelectricityconsumption2025/keyfindings/",
      "localRawFile": "annual-keyfindings.html",
      "sha256": "a3e846aa20148e3adf81918ca6d54f3a9ef2410fa6f6499806470297560330ba",
      "selection": "Published annual Data Centre column, 2015\u20132025. These annual values are not sums of the separately rounded quarters."
    },
    {
      "id": "homes",
      "title": "CSO MEC03, Metered Electricity Consumption",
      "url": "https://ws.cso.ie/public/api.restful/PxStat.Data.Cube_API.ReadDataset/MEC03/JSON-stat/2.0/en",
      "localRawFile": "MEC03.json",
      "sha256": "858c6f76b9183abd6cc185321e493bc6f2cb1aaff719bfcd1f291e6f83fda93e",
      "selection": {
        "STATISTIC": "MEC03",
        "C03815V04565": "-",
        "C03816V04566": "10"
      },
      "updated": "2026-07-07T11:00:00.000Z"
    },
    {
      "id": "meter-classification",
      "title": "CSO Metered Electricity Consumption 2025, Background Notes, Tariff Group",
      "url": "https://www.cso.ie/en/releasesandpublications/ep/p-mec/meteredelectricityconsumption2025/backgroundnotes/",
      "localRawFile": "mec-background.html",
      "sha256": "b71e1b9d140a9710fae41a9d398cfcc6aebacfd304d7afe949468e120d0bdeb6",
      "selection": "Tariff Group note: DG1/DG2 can include small commercial customers, so residential consumption is an overestimate of strictly household use."
    }
  ],
  "notes": [
    "All data centers, not an estimate of electricity used only for artificial intelligence.",
    "Residential and non-residential classifications follow ESB meter groups. Some small non-residential customers may be in residential meter groups.",
    "The two series are not a full partition of national electricity use. No inference of household deprivation, pricing, or displaced supply is made.",
    "Figures are published rounded GWh. The 2025 data-center annual total is 7,663 GWh; the four separately rounded quarters sum to 7,662 GWh.",
    "Trace thickness is a zero-based linear measure: the same thickness per GWh for both groups and every year. Length, circuit geometry, terminal symbols and pulsing do not encode quantities or actual infrastructure."
  ],
  "rows": [
    {
      "year": 2015,
      "residentialGWh": 8370,
      "dataCenterGWh": 1240,
      "allMeteredGWh": 24600
    },
    {
      "year": 2016,
      "residentialGWh": 8397,
      "dataCenterGWh": 1482,
      "allMeteredGWh": 25356
    },
    {
      "year": 2017,
      "residentialGWh": 8414,
      "dataCenterGWh": 1762,
      "allMeteredGWh": 25725
    },
    {
      "year": 2018,
      "residentialGWh": 8671,
      "dataCenterGWh": 2182,
      "allMeteredGWh": 26730
    },
    {
      "year": 2019,
      "residentialGWh": 8340,
      "dataCenterGWh": 2490,
      "allMeteredGWh": 26505
    },
    {
      "year": 2020,
      "residentialGWh": 9231,
      "dataCenterGWh": 3030,
      "allMeteredGWh": 27056
    },
    {
      "year": 2021,
      "residentialGWh": 9305,
      "dataCenterGWh": 4012,
      "allMeteredGWh": 28506
    },
    {
      "year": 2022,
      "residentialGWh": 8763,
      "dataCenterGWh": 5273,
      "allMeteredGWh": 29824
    },
    {
      "year": 2023,
      "residentialGWh": 8579,
      "dataCenterGWh": 6339,
      "allMeteredGWh": 30581
    },
    {
      "year": 2024,
      "residentialGWh": 8951,
      "dataCenterGWh": 6973,
      "allMeteredGWh": 31903
    },
    {
      "year": 2025,
      "residentialGWh": 9075,
      "dataCenterGWh": 7663,
      "allMeteredGWh": 32986
    }
  ]
}