{
  "metadata": {
    "generated_at": "2026-10-18T09:48:56.769010+00:00",
    "latest_completed_delivery_date": "2026-10-17",
    "latest_sensitivity_date": "2026-10-19",
    "source": "日本卸電力取引所（JEPX）",
    "intraday_source_url": "https://www.jepx.jp/electricpower/market-data/intraday/",
    "sensitivity_source_url": "https://www.jepx.jp/electricpower/market-data/spot/virtualprice.html",
    "actuals_only": true,
    "intraday_price_aggregation": "時間前平均価格を時間前約定量で加重した日次平均",
    "spot_comparison": "同じ30分コマのスポットシステムプライスを時間前約定量で加重して比較",
    "sensitivity_definition": "実際のスポット入札状態へ売0.01円または買999円の入札を500・1,000・5,000MW追加したJEPX公表の仮想価格差"
  },
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      "intraday_weighted_jpy_kwh": 15.52,
      "intraday_vs_spot_jpy_kwh": -0.97,
      "intraday_volume_gwh": 21.947,
      "intraday_contract_count": 8742
    },
    "sensitivity": {
      "date": "2026-10-19",
      "sell_500mw_jpy_kwh": -0.4,
      "buy_500mw_jpy_kwh": 0.39,
      "sell_1000mw_jpy_kwh": -0.82,
      "buy_1000mw_jpy_kwh": 0.35,
      "sell_5000mw_jpy_kwh": -4.96,
      "buy_5000mw_jpy_kwh": 3.25
    }
  },
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