{
  "_spec": {
    "generated": "2026-08-15",
    "note": "One settled ERCOT day per record. Hourly series included so every published figure is recomputable. Unverified days carry no numbers rather than yesterday's."
  },
  "readings": [
    {
      "_spec": 1,
      "capacity_at_peak_mw": 111516.7,
      "capacity_mw": [
        87833.1,
        87110.5,
        86656.9,
        86255.9,
        85901.5,
        85998.7,
        85337.6,
        87537.7,
        97385.8,
        106022.4,
        107431.5,
        108415.5,
        110160.1,
        109268.1,
        111214.7,
        111637.8,
        111516.7,
        111214.4,
        108397.7,
        98933.5,
        95141.3,
        96741.6,
        96603.4,
        93878.7
      ],
      "date": "2026-08-10",
      "day_ahead_forecast_mw": [
        63849.1368,
        61027.9048,
        58888.7572,
        57572.3123,
        57237.0129,
        58046.746,
        59420.7012,
        59972.22,
        62633.493,
        66616.699,
        71119.1399,
        75674.3418,
        79668.1169,
        83109.8149,
        84807.8083,
        85403.5339,
        85621.0671,
        85214.0691,
        84063.6865,
        81791.1069,
        79409.0317,
        76799.2837,
        72860.1265,
        68901.2461
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      "energy_mwh": 1701380.0,
      "ercot_stamp": "2026-08-11 18:15:01-0500",
      "forecast_peak_mw": 85621.1,
      "fuel_energy_mwh": {
        "Coal and Lignite": 208663.6,
        "Hydro": 744.7,
        "Natural Gas": 708806.4,
        "Nuclear": 119050.3,
        "Other": 1200.7,
        "Power Storage": -15001.8,
        "Solar": 296960.4,
        "Wind": 382759.2
      },
      "fuel_samples": 288,
      "generation_load_gap_pct": 0.106,
      "hour_ending": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "hours_in_day": 24,
      "hours_measured": 24,
      "load_factor": 0.8529,
      "load_mw": [
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        59761.18,
        58483.02,
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        74777.3,
        78152.03,
        80916.2,
        82254.9,
        82891.07,
        83118.16,
        82726.42,
        81619.59,
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        77494.69,
        75265.86,
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      "mean_absolute_forecast_error_mw": 1372.0,
      "mean_load_mw": 70890.8,
      "min_hour_ending": 5,
      "min_load_mw": 58093.1,
      "note": "",
      "peak_forecast_error_mw": 2502.9,
      "peak_hour_ending": 17,
      "peak_load_mw": 83118.2,
      "reserve_at_peak_mw": 28398.5,
      "source": "ercot system-wide-demand",
      "verified": true
    },
    {
      "_spec": 1,
      "capacity_at_peak_mw": 113608.2,
      "capacity_mw": [
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        90507,
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        100244.7,
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        113884.9,
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        115303.1,
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        115406.3,
        114730.5,
        113608.2,
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        98399.3,
        93262.5,
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        95758.4,
        93499.3
      ],
      "date": "2026-08-11",
      "day_ahead_forecast_mw": [
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        60597.0001,
        59098.6598,
        58527.6902,
        59216.1708,
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        60699.8094,
        63546.0104,
        67876.4189,
        72587.6299,
        77339.3113,
        81673.1196,
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        87131.8208,
        87995.3606,
        88439.5505,
        88250.1306,
        87051.6604,
        84661.72,
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        79124.3303,
        75008.5593,
        70832.8787
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      "energy_mwh": 1743296.7,
      "ercot_stamp": "2026-08-12 09:15:01-0500",
      "forecast_peak_mw": 88439.6,
      "fuel_energy_mwh": {
        "Coal and Lignite": 191553.0,
        "Hydro": 666.8,
        "Natural Gas": 657978.3,
        "Nuclear": 119152.1,
        "Other": 1392.2,
        "Power Storage": 2936.6,
        "Solar": 319615.9,
        "Wind": 453627.3
      },
      "fuel_samples": 287,
      "generation_load_gap_pct": 0.208,
      "hour_ending": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "hours_in_day": 24,
      "hours_measured": 24,
      "load_factor": 0.8359,
      "load_mw": [
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        61133.48,
        58979.9,
        57667,
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        58031.69,
        59499.97,
        60136.51,
        62746.26,
        66929.46,
        71144.72,
        75500.38,
        79770.77,
        83423.77,
        86125.13,
        86822.27,
        86895.93,
        86899.19,
        86504.01,
        85035.19,
        82650.8,
        79573.84,
        75270.62,
        71328.84
      ],
      "mean_absolute_forecast_error_mw": 1152.7,
      "mean_load_mw": 72637.4,
      "min_hour_ending": 5,
      "min_load_mw": 57275.2,
      "note": "",
      "peak_forecast_error_mw": 1540.4,
      "peak_hour_ending": 18,
      "peak_load_mw": 86899.2,
      "reserve_at_peak_mw": 26709.0,
      "source": "ercot system-wide-demand",
      "verified": true
    },
    {
      "_spec": 1,
      "capacity_at_peak_mw": 116669.3,
      "capacity_mw": [
        92163.5,
        91160.1,
        90960,
        90295.5,
        89409.9,
        88761.1,
        88609.2,
        90776.1,
        103059.5,
        111680.2,
        114172.6,
        116198.5,
        117363.6,
        117059.4,
        116738.9,
        117004.9,
        117267.2,
        116669.3,
        111803.1,
        99371.1,
        95185.4,
        96859.6,
        96064.1,
        95003.8
      ],
      "date": "2026-08-12",
      "day_ahead_forecast_mw": [
        66081.1499,
        63073.4194,
        60802.6899,
        59379.5295,
        58869.1489,
        59584.1995,
        60772.7502,
        61084.8599,
        63709.6392,
        67883.479,
        72536.0513,
        77200.0002,
        81367.3804,
        84738.22,
        86612.8403,
        87308.3909,
        87711.0811,
        87701.1489,
        86814.4495,
        84591.5496,
        82029.011,
        79462.1084,
        75313.6196,
        71083.8105
      ],
      "energy_mwh": 1794363.5,
      "ercot_stamp": "2026-08-13 17:07:01-0500",
      "forecast_peak_mw": 87711.1,
      "fuel_energy_mwh": {
        "Coal and Lignite": 206103.3,
        "Hydro": 731.7,
        "Natural Gas": 636385.8,
        "Nuclear": 119180.1,
        "Other": 1373.5,
        "Power Storage": -8621.1,
        "Solar": 314396.6,
        "Wind": 529328.5
      },
      "fuel_samples": 288,
      "generation_load_gap_pct": 0.252,
      "hour_ending": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "hours_in_day": 24,
      "hours_measured": 24,
      "load_factor": 0.8482,
      "load_mw": [
        67396.35,
        64654.83,
        62516.89,
        61009.91,
        60461.93,
        60999.79,
        62203.27,
        62426.22,
        64883.26,
        68771.35,
        73126.36,
        77638.23,
        81792.76,
        85456.28,
        87041.2,
        87480.8,
        87981.89,
        88143.22,
        87762.04,
        86514.93,
        84337.38,
        81600.3,
        77198.04,
        72966.31
      ],
      "mean_absolute_forecast_error_mw": 1193.9,
      "mean_load_mw": 74765.1,
      "min_hour_ending": 5,
      "min_load_mw": 60461.9,
      "note": "",
      "peak_forecast_error_mw": -432.1,
      "peak_hour_ending": 18,
      "peak_load_mw": 88143.2,
      "reserve_at_peak_mw": 28526.1,
      "source": "ercot system-wide-demand",
      "verified": true
    },
    {
      "_spec": 1,
      "capacity_at_peak_mw": 116347.3,
      "capacity_mw": [
        93159.5,
        91988.9,
        91619.7,
        91796.2,
        91808.5,
        91409.3,
        90995.6,
        93185.3,
        105971.9,
        113697.3,
        116083.1,
        115999.7,
        116122.8,
        115507.8,
        115473.1,
        115439.6,
        116347.3,
        116223.3,
        109977,
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        95081.6,
        96253.6,
        95214.3,
        93749.6
      ],
      "date": "2026-08-13",
      "day_ahead_forecast_mw": [
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        65109.8292,
        62649.6487,
        60995.5908,
        60257.8801,
        60642.7903,
        61797.2295,
        61973.3907,
        64777.011,
        69170.5309,
        74032.9697,
        78953.9795,
        83332.6602,
        86839.5801,
        88742.8904,
        89586.7712,
        89977.5503,
        89758.1921,
        88401.0605,
        85843.6389,
        82937.2419,
        80226.8804,
        76045.0098,
        71683.5391
      ],
      "energy_mwh": 1802364.6,
      "ercot_stamp": "2026-08-14 09:15:01-0500",
      "forecast_peak_mw": 89977.6,
      "fuel_energy_mwh": {
        "Coal and Lignite": 195793.6,
        "Hydro": 819.0,
        "Natural Gas": 628819.0,
        "Nuclear": 119254.6,
        "Other": 1341.2,
        "Power Storage": -6489.1,
        "Solar": 319058.5,
        "Wind": 547304.0
      },
      "fuel_samples": 288,
      "generation_load_gap_pct": 0.196,
      "hour_ending": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "hours_in_day": 24,
      "hours_measured": 24,
      "load_factor": 0.8521,
      "load_mw": [
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        66370.73,
        64138.31,
        62663.98,
        61785.4,
        62148.55,
        63206.25,
        63251.71,
        65618.78,
        68950.09,
        73127.09,
        77384.26,
        81348.63,
        84814.62,
        87325.98,
        87748.72,
        88137.2,
        88025.91,
        87496.12,
        86113.25,
        83643.65,
        80749.77,
        76724.28,
        72333.36
      ],
      "mean_absolute_forecast_error_mw": 1216.0,
      "mean_load_mw": 75098.5,
      "min_hour_ending": 5,
      "min_load_mw": 61785.4,
      "note": "",
      "peak_forecast_error_mw": 1840.4,
      "peak_hour_ending": 17,
      "peak_load_mw": 88137.2,
      "reserve_at_peak_mw": 28210.1,
      "source": "ercot system-wide-demand",
      "verified": true
    },
    {
      "_spec": 1,
      "capacity_at_peak_mw": 118817.7,
      "capacity_mw": [
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        90125.5,
        90100.5,
        89922.2,
        89471,
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        88842.6,
        91139,
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        110856.8,
        112840.1,
        112957.8,
        114291.5,
        114947.8,
        116413.5,
        117685.2,
        118817.7,
        118924.6,
        114825.6,
        103053,
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        98068.2,
        96507.3,
        95562.1
      ],
      "date": "2026-08-14",
      "day_ahead_forecast_mw": [
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        65207.3607,
        62732.5093,
        61185.8894,
        60498.9391,
        60689.3807,
        61808.8198,
        62151.7391,
        64861.6085,
        68987.5989,
        73546.0105,
        77956.2893,
        81880.7407,
        85105.1292,
        86757.8396,
        87161.0498,
        87199.3203,
        86687.1011,
        85340.8394,
        82772.3813,
        80170.8303,
        77817.1909,
        74289.7297,
        70676.9299
      ],
      "energy_mwh": 1781547.9,
      "ercot_stamp": "2026-08-15 09:15:01-0500",
      "forecast_peak_mw": 87199.3,
      "fuel_energy_mwh": {
        "Coal and Lignite": 195598.7,
        "Hydro": 741.2,
        "Natural Gas": 630858.5,
        "Nuclear": 119361.4,
        "Other": 1201.8,
        "Power Storage": -11562.2,
        "Solar": 315263.5,
        "Wind": 534729.4
      },
      "fuel_samples": 288,
      "generation_load_gap_pct": 0.261,
      "hour_ending": [
        1,
        2,
        3,
        4,
        5,
        6,
        7,
        8,
        9,
        10,
        11,
        12,
        13,
        14,
        15,
        16,
        17,
        18,
        19,
        20,
        21,
        22,
        23,
        24
      ],
      "hours_in_day": 24,
      "hours_measured": 24,
      "load_factor": 0.8469,
      "load_mw": [
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        66105.1,
        63915.53,
        62240.07,
        61448.53,
        61791.94,
        62793.54,
        62954.3,
        65429.71,
        69263.27,
        73126.82,
        77046.44,
        80485.23,
        83896.66,
        86094.8,
        87538.14,
        87648.47,
        87212.08,
        85653.52,
        83038.48,
        80371.06,
        78222.83,
        74921.36,
        71447.36
      ],
      "mean_absolute_forecast_error_mw": 703.2,
      "mean_load_mw": 74231.2,
      "min_hour_ending": 5,
      "min_load_mw": 61448.5,
      "note": "",
      "peak_forecast_error_mw": -449.1,
      "peak_hour_ending": 17,
      "peak_load_mw": 87648.5,
      "reserve_at_peak_mw": 31169.2,
      "source": "ercot system-wide-demand",
      "verified": true
    }
  ]
}