{
  "metadata": {
    "generated_at": "2026-09-03T08:14:28.455113+00:00",
    "display_start_period": "2016-04",
    "latest_delivery_date": "2026-09-04",
    "source": "日本卸電力取引所（JEPX）",
    "source_url": "https://www.jepx.jp/electricpower/market-data/spot/",
    "monthly_aggregation": "30分コマ価格の月次単純平均",
    "daily_price_aggregation": "30分コマ価格の日次単純平均",
    "daily_volume_aggregation": "全国の30分コマ入札量・約定量の日次合計",
    "interval_detail": "直近31日、9エリア・システム価格の30分コマ実績",
    "arbitrage_aggregation": "完了日48コマから月次値幅を集計。上位・下位コマの時系列実行可能性、効率、劣化、手数料等は未考慮",
    "bid_volume_scope": "全国合計。エリア別ではない",
    "actuals_only": true
  },
  "latest": {
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      "series_id": "jepx_system_jpy_kwh",
      "period": "2026-09",
      "value": 24.49,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_hokkaido_jpy_kwh": {
      "series_id": "jepx_hokkaido_jpy_kwh",
      "period": "2026-09",
      "value": 13.16,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_tohoku_jpy_kwh": {
      "series_id": "jepx_tohoku_jpy_kwh",
      "period": "2026-09",
      "value": 19.19,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_tokyo_jpy_kwh": {
      "series_id": "jepx_tokyo_jpy_kwh",
      "period": "2026-09",
      "value": 24.85,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_chubu_jpy_kwh": {
      "series_id": "jepx_chubu_jpy_kwh",
      "period": "2026-09",
      "value": 27.24,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_hokuriku_jpy_kwh": {
      "series_id": "jepx_hokuriku_jpy_kwh",
      "period": "2026-09",
      "value": 24.95,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_kansai_jpy_kwh": {
      "series_id": "jepx_kansai_jpy_kwh",
      "period": "2026-09",
      "value": 24.86,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_chugoku_jpy_kwh": {
      "series_id": "jepx_chugoku_jpy_kwh",
      "period": "2026-09",
      "value": 23.33,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_shikoku_jpy_kwh": {
      "series_id": "jepx_shikoku_jpy_kwh",
      "period": "2026-09",
      "value": 23.07,
      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    },
    "jepx_kyushu_jpy_kwh": {
      "series_id": "jepx_kyushu_jpy_kwh",
      "period": "2026-09",
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      "unit": "円/kWh",
      "status": "月途中",
      "valid_interval_count": 192,
      "expected_interval_count": 1440,
      "source_name": "日本卸電力取引所（JEPX）",
      "source_url": "https://www.jepx.jp/electricpower/market-data/spot/"
    }
  },
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      "2020-06",
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      "2021-01",
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      "2021-03",
      "2021-04",
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      "2021-12",
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      "2022-02",
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      "2022-06",
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      "2022-08",
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      "2023-01",
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      "2023-03",
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      "2023-05",
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      "2024-02",
      "2024-03",
      "2024-04",
      "2024-05",
      "2024-06",
      "2024-07",
      "2024-08",
      "2024-09",
      "2024-10",
      "2024-11",
      "2024-12",
      "2025-01",
      "2025-02",
      "2025-03",
      "2025-04",
      "2025-05",
      "2025-06",
      "2025-07",
      "2025-08",
      "2025-09",
      "2025-10",
      "2025-11",
      "2025-12",
      "2026-01",
      "2026-02",
      "2026-03",
      "2026-04",
      "2026-05",
      "2026-06",
      "2026-07",
      "2026-08",
      "2026-09"
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}