{
  "summary": "This chapter is observing (no good/bad criterion): observation started 2026-08-29, 2 series, latest confirmed 2026-11-10. Latest final value: Lower 48 total demand 10,668,388 MWh (2026-11-09). (Source: U.S. EIA (Form EIA-930) / updated 2026-11-11 18:01 JST)",
  "cite_as": "AI Lifeline, Electricity (United States edition), data confirmed 2026-11-09, https://ai-lifeline.org/us/power/",
  "ba_demand_latest": {
    "rows": [
      {
        "ba": "US48",
        "value_status": "provisional",
        "demand_mwh": 10789313.0,
        "name": "United States Lower 48 (total)"
      },
      {
        "ba": "PJM",
        "value_status": "provisional",
        "demand_mwh": 2136356.0,
        "name": "PJM Interconnection"
      },
      {
        "ba": "MISO",
        "value_status": "provisional",
        "demand_mwh": 1768946.0,
        "name": "Midcontinent ISO"
      },
      {
        "ba": "ERCO",
        "value_status": "provisional",
        "demand_mwh": 1185372.0,
        "name": "ERCOT (Texas)"
      },
      {
        "ba": "CISO",
        "value_status": "provisional",
        "demand_mwh": 611010.0,
        "name": "California ISO"
      },
      {
        "ba": "SWPP",
        "value_status": "provisional",
        "demand_mwh": 743569.0,
        "name": "Southwest Power Pool"
      },
      {
        "ba": "NYIS",
        "value_status": "provisional",
        "demand_mwh": 362754.0,
        "name": "New York ISO"
      },
      {
        "ba": "ISNE",
        "value_status": "provisional",
        "demand_mwh": 290499.0,
        "name": "ISO New England"
      }
    ],
    "date": "2026-11-10"
  },
  "demand_daily": [
    {
      "us48_netgen_mwh": 14599306.0,
      "value_status": "final",
      "date": "2026-08-13",
      "us48_demand_mwh": 14785561.0,
      "fetched_at": "2026-08-29 15:03"
    },
    {
      "us48_netgen_mwh": 14410493.0,
      "value_status": "final",
      "date": "2026-08-14",
      "us48_demand_mwh": 14598618.0,
      "fetched_at": "2026-08-29 15:03"
    },
    {
      "us48_netgen_mwh": 13693664.0,
      "value_status": "final",
      "date": "2026-08-15",
      "us48_demand_mwh": 13945962.0,
      "fetched_at": "2026-08-29 15:03"
    },
    {
      "us48_netgen_mwh": 13700431.0,
      "value_status": "final",
      "date": "2026-08-16",
      "us48_demand_mwh": 13953505.0,
      "fetched_at": "2026-08-29 15:03"
    },
    {
      "us48_netgen_mwh": 14481492.0,
      "value_status": "final",
      "date": "2026-08-17",
      "us48_demand_mwh": 14763186.0,
      "fetched_at": "2026-08-29 15:03"
    },
    {
      "us48_netgen_mwh": 14606106.0,
      "value_status": "final",
      "date": "2026-08-18",
      "us48_demand_mwh": 14801309.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 14372875.0,
      "value_status": "final",
      "date": "2026-08-19",
      "us48_demand_mwh": 14716519.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 14427890.0,
      "value_status": "final",
      "date": "2026-08-20",
      "us48_demand_mwh": 14614915.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 14089267.0,
      "value_status": "final",
      "date": "2026-08-21",
      "us48_demand_mwh": 14285547.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 13399755.0,
      "value_status": "final",
      "date": "2026-08-22",
      "us48_demand_mwh": 13597516.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 12992217.0,
      "value_status": "final",
      "date": "2026-08-23",
      "us48_demand_mwh": 13269310.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 13519039.0,
      "value_status": "final",
      "date": "2026-08-24",
      "us48_demand_mwh": 13733096.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 13707011.0,
      "value_status": "final",
      "date": "2026-08-25",
      "us48_demand_mwh": 13899688.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 13935311.0,
      "value_status": "final",
      "date": "2026-08-26",
      "us48_demand_mwh": 14122914.0,
      "fetched_at": "2026-09-03 20:48"
    },
    {
      "us48_netgen_mwh": 13973280.0,
      "value_status": "final",
      "date": "2026-08-27",
      "us48_demand_mwh": 14195674.0,
      "fetched_at": "2026-09-04 08:09"
    },
    {
      "us48_netgen_mwh": 13809406.0,
      "value_status": "final",
      "date": "2026-08-28",
      "us48_demand_mwh": 14030402.0,
      "fetched_at": "2026-09-03 18:00"
    },
    {
      "us48_netgen_mwh": 13016729.0,
      "value_status": "final",
      "date": "2026-08-29",
      "us48_demand_mwh": 13179132.0,
      "fetched_at": "2026-09-05 18:00"
    },
    {
      "us48_netgen_mwh": 13148043.0,
      "value_status": "final",
      "date": "2026-08-30",
      "us48_demand_mwh": 13312254.0,
      "fetched_at": "2026-09-05 18:00"
    },
    {
      "us48_netgen_mwh": 14056417.0,
      "value_status": "final",
      "date": "2026-08-31",
      "us48_demand_mwh": 14271773.0,
      "fetched_at": "2026-09-05 18:00"
    },
    {
      "us48_netgen_mwh": 14430384.0,
      "value_status": "final",
      "date": "2026-09-01",
      "us48_demand_mwh": 14640936.0,
      "fetched_at": "2026-09-07 18:00"
    },
    {
      "us48_netgen_mwh": 14526713.0,
      "value_status": "final",
      "date": "2026-09-02",
      "us48_demand_mwh": 14717944.0,
      "fetched_at": "2026-09-09 18:00"
    },
    {
      "us48_netgen_mwh": 14583925.0,
      "value_status": "final",
      "date": "2026-09-03",
      "us48_demand_mwh": 14748883.0,
      "fetched_at": "2026-09-10 18:00"
    },
    {
      "us48_netgen_mwh": 14390179.0,
      "value_status": "final",
      "date": "2026-09-04",
      "us48_demand_mwh": 14596552.0,
      "fetched_at": "2026-09-11 18:00"
    },
    {
      "us48_netgen_mwh": 13399325.0,
      "value_status": "final",
      "date": "2026-09-05",
      "us48_demand_mwh": 13619349.0,
      "fetched_at": "2026-09-12 18:00"
    },
    {
      "us48_netgen_mwh": 12696391.0,
      "value_status": "final",
      "date": "2026-09-06",
      "us48_demand_mwh": 12872649.0,
      "fetched_at": "2026-09-12 18:00"
    },
    {
      "us48_netgen_mwh": 12648565.0,
      "value_status": "final",
      "date": "2026-09-07",
      "us48_demand_mwh": 12823701.0,
      "fetched_at": "2026-09-14 18:00"
    },
    {
      "us48_netgen_mwh": 13571891.0,
      "value_status": "final",
      "date": "2026-09-08",
      "us48_demand_mwh": 13739534.0,
      "fetched_at": "2026-09-15 18:00"
    },
    {
      "us48_netgen_mwh": 14118810.0,
      "value_status": "final",
      "date": "2026-09-09",
      "us48_demand_mwh": 14332431.0,
      "fetched_at": "2026-09-16 18:00"
    },
    {
      "us48_netgen_mwh": 13958866.0,
      "value_status": "final",
      "date": "2026-09-10",
      "us48_demand_mwh": 14190526.0,
      "fetched_at": "2026-09-17 18:00"
    },
    {
      "us48_netgen_mwh": 13529036.0,
      "value_status": "final",
      "date": "2026-09-11",
      "us48_demand_mwh": 13700421.0,
      "fetched_at": "2026-09-18 18:00"
    },
    {
      "us48_netgen_mwh": 12132664.0,
      "value_status": "final",
      "date": "2026-09-12",
      "us48_demand_mwh": 13026093.0,
      "fetched_at": "2026-09-19 18:33"
    },
    {
      "us48_netgen_mwh": 12783696.0,
      "value_status": "final",
      "date": "2026-09-13",
      "us48_demand_mwh": 13025352.0,
      "fetched_at": "2026-09-20 18:00"
    },
    {
      "us48_netgen_mwh": 13026052.0,
      "value_status": "final",
      "date": "2026-09-14",
      "us48_demand_mwh": 13187202.0,
      "fetched_at": "2026-09-20 18:00"
    },
    {
      "us48_netgen_mwh": 13078490.0,
      "value_status": "final",
      "date": "2026-09-15",
      "us48_demand_mwh": 13236835.0,
      "fetched_at": "2026-09-22 18:00"
    },
    {
      "us48_netgen_mwh": 13186880.0,
      "value_status": "final",
      "date": "2026-09-16",
      "us48_demand_mwh": 13397036.0,
      "fetched_at": "2026-09-23 18:00"
    },
    {
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      "value_status": "final",
      "date": "2026-09-17",
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      "fetched_at": "2026-09-23 18:00"
    },
    {
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      "value_status": "final",
      "date": "2026-09-18",
      "us48_demand_mwh": 13345635.0,
      "fetched_at": "2026-09-25 18:00"
    },
    {
      "us48_netgen_mwh": 12222117.0,
      "value_status": "final",
      "date": "2026-09-19",
      "us48_demand_mwh": 12406843.0,
      "fetched_at": "2026-09-26 18:00"
    },
    {
      "us48_netgen_mwh": 12049629.0,
      "value_status": "final",
      "date": "2026-09-20",
      "us48_demand_mwh": 12261374.0,
      "fetched_at": "2026-09-26 18:00"
    },
    {
      "us48_netgen_mwh": 12322349.0,
      "value_status": "final",
      "date": "2026-09-21",
      "us48_demand_mwh": 12536380.0,
      "fetched_at": "2026-09-26 18:00"
    },
    {
      "us48_netgen_mwh": 12006870.0,
      "value_status": "final",
      "date": "2026-09-22",
      "us48_demand_mwh": 12188470.0,
      "fetched_at": "2026-09-28 18:00"
    },
    {
      "us48_netgen_mwh": 11762259.0,
      "value_status": "final",
      "date": "2026-09-23",
      "us48_demand_mwh": 11937040.0,
      "fetched_at": "2026-09-30 18:00"
    },
    {
      "us48_netgen_mwh": 11586127.0,
      "value_status": "final",
      "date": "2026-09-24",
      "us48_demand_mwh": 11737811.0,
      "fetched_at": "2026-10-01 18:00"
    },
    {
      "us48_netgen_mwh": 11319387.0,
      "value_status": "final",
      "date": "2026-09-25",
      "us48_demand_mwh": 11473303.0,
      "fetched_at": "2026-10-02 18:01"
    },
    {
      "us48_netgen_mwh": 10794178.0,
      "value_status": "final",
      "date": "2026-09-26",
      "us48_demand_mwh": 10918895.0,
      "fetched_at": "2026-10-03 18:00"
    },
    {
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      "value_status": "final",
      "date": "2026-09-27",
      "us48_demand_mwh": 10983797.0,
      "fetched_at": "2026-10-03 18:00"
    },
    {
      "us48_netgen_mwh": 11482702.0,
      "value_status": "final",
      "date": "2026-09-28",
      "us48_demand_mwh": 11695604.0,
      "fetched_at": "2026-10-04 18:00"
    },
    {
      "us48_netgen_mwh": 11629386.0,
      "value_status": "final",
      "date": "2026-09-29",
      "us48_demand_mwh": 11795465.0,
      "fetched_at": "2026-10-06 18:00"
    },
    {
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      "value_status": "final",
      "date": "2026-09-30",
      "us48_demand_mwh": 12093966.0,
      "fetched_at": "2026-10-06 18:00"
    },
    {
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      "value_status": "final",
      "date": "2026-10-01",
      "us48_demand_mwh": 12224851.0,
      "fetched_at": "2026-10-08 18:00"
    },
    {
      "us48_netgen_mwh": 11950055.0,
      "value_status": "final",
      "date": "2026-10-02",
      "us48_demand_mwh": 12117968.0,
      "fetched_at": "2026-10-09 18:00"
    },
    {
      "us48_netgen_mwh": 11112265.0,
      "value_status": "final",
      "date": "2026-10-03",
      "us48_demand_mwh": 11242811.0,
      "fetched_at": "2026-10-10 18:00"
    },
    {
      "us48_netgen_mwh": 10895967.0,
      "value_status": "final",
      "date": "2026-10-04",
      "us48_demand_mwh": 11010981.0,
      "fetched_at": "2026-10-12 06:24"
    },
    {
      "us48_netgen_mwh": 11408626.0,
      "value_status": "final",
      "date": "2026-10-05",
      "us48_demand_mwh": 11608559.0,
      "fetched_at": "2026-10-12 06:24"
    },
    {
      "us48_netgen_mwh": 11365995.0,
      "value_status": "final",
      "date": "2026-10-06",
      "us48_demand_mwh": 11535377.0,
      "fetched_at": "2026-10-13 18:00"
    },
    {
      "us48_netgen_mwh": 11404432.0,
      "value_status": "final",
      "date": "2026-10-07",
      "us48_demand_mwh": 11578009.0,
      "fetched_at": "2026-10-13 18:00"
    },
    {
      "us48_netgen_mwh": 11485777.0,
      "value_status": "final",
      "date": "2026-10-08",
      "us48_demand_mwh": 11659058.0,
      "fetched_at": "2026-10-13 18:00"
    },
    {
      "us48_netgen_mwh": 11329426.0,
      "value_status": "final",
      "date": "2026-10-09",
      "us48_demand_mwh": 11446551.0,
      "fetched_at": "2026-10-16 18:00"
    },
    {
      "us48_netgen_mwh": 10712563.0,
      "value_status": "final",
      "date": "2026-10-10",
      "us48_demand_mwh": 10802497.0,
      "fetched_at": "2026-10-16 18:00"
    },
    {
      "us48_netgen_mwh": 10767848.0,
      "value_status": "final",
      "date": "2026-10-11",
      "us48_demand_mwh": 10888528.0,
      "fetched_at": "2026-10-16 18:00"
    },
    {
      "us48_netgen_mwh": 11490002.0,
      "value_status": "final",
      "date": "2026-10-12",
      "us48_demand_mwh": 11651771.0,
      "fetched_at": "2026-10-17 18:01"
    },
    {
      "us48_netgen_mwh": 11826808.0,
      "value_status": "final",
      "date": "2026-10-13",
      "us48_demand_mwh": 12017274.0,
      "fetched_at": "2026-10-21 06:53"
    },
    {
      "us48_netgen_mwh": 11734789.0,
      "value_status": "final",
      "date": "2026-10-14",
      "us48_demand_mwh": 11928949.0,
      "fetched_at": "2026-10-21 06:53"
    },
    {
      "us48_netgen_mwh": 11498114.0,
      "value_status": "final",
      "date": "2026-10-15",
      "us48_demand_mwh": 11678374.0,
      "fetched_at": "2026-10-22 18:00"
    },
    {
      "us48_netgen_mwh": 11102898.0,
      "value_status": "final",
      "date": "2026-10-16",
      "us48_demand_mwh": 11257791.0,
      "fetched_at": "2026-10-23 18:00"
    },
    {
      "us48_netgen_mwh": 9875636.0,
      "value_status": "final",
      "date": "2026-10-17",
      "us48_demand_mwh": 10041319.0,
      "fetched_at": "2026-10-24 18:00"
    },
    {
      "us48_netgen_mwh": 9713773.0,
      "value_status": "final",
      "date": "2026-10-18",
      "us48_demand_mwh": 9902796.0,
      "fetched_at": "2026-10-24 18:00"
    },
    {
      "us48_netgen_mwh": 10404526.0,
      "value_status": "final",
      "date": "2026-10-19",
      "us48_demand_mwh": 10600011.0,
      "fetched_at": "2026-10-24 18:00"
    },
    {
      "us48_netgen_mwh": 10525114.0,
      "value_status": "final",
      "date": "2026-10-20",
      "us48_demand_mwh": 10692024.0,
      "fetched_at": "2026-10-24 18:00"
    },
    {
      "us48_netgen_mwh": 10539090.0,
      "value_status": "final",
      "date": "2026-10-21",
      "us48_demand_mwh": 10724271.0,
      "fetched_at": "2026-10-28 18:00"
    },
    {
      "us48_netgen_mwh": 10558252.0,
      "value_status": "final",
      "date": "2026-10-22",
      "us48_demand_mwh": 10724229.0,
      "fetched_at": "2026-10-28 18:00"
    },
    {
      "us48_netgen_mwh": 10436766.0,
      "value_status": "final",
      "date": "2026-10-23",
      "us48_demand_mwh": 10588222.0,
      "fetched_at": "2026-10-29 18:00"
    },
    {
      "us48_netgen_mwh": 9971099.0,
      "value_status": "final",
      "date": "2026-10-24",
      "us48_demand_mwh": 10111260.0,
      "fetched_at": "2026-10-31 18:00"
    },
    {
      "us48_netgen_mwh": 9856637.0,
      "value_status": "final",
      "date": "2026-10-25",
      "us48_demand_mwh": 10072945.0,
      "fetched_at": "2026-11-01 18:00"
    },
    {
      "us48_netgen_mwh": 10486017.0,
      "value_status": "final",
      "date": "2026-10-26",
      "us48_demand_mwh": 10670632.0,
      "fetched_at": "2026-10-31 18:00"
    },
    {
      "us48_netgen_mwh": 10564956.0,
      "value_status": "final",
      "date": "2026-10-27",
      "us48_demand_mwh": 10708161.0,
      "fetched_at": "2026-11-03 18:00"
    },
    {
      "us48_netgen_mwh": 10724305.0,
      "value_status": "final",
      "date": "2026-10-28",
      "us48_demand_mwh": 10863313.0,
      "fetched_at": "2026-11-04 18:00"
    },
    {
      "us48_netgen_mwh": 10720650.0,
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      "fetched_at": "2026-11-05 18:00"
    },
    {
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      "fetched_at": "2026-11-05 18:00"
    },
    {
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      "us48_demand_mwh": 10177303.0,
      "fetched_at": "2026-11-06 18:00"
    },
    {
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      "value_status": "final",
      "date": "2026-11-01",
      "us48_demand_mwh": 10479467.0,
      "fetched_at": "2026-11-08 21:25"
    },
    {
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      "value_status": "final",
      "date": "2026-11-02",
      "us48_demand_mwh": 10811025.0,
      "fetched_at": "2026-11-08 21:25"
    },
    {
      "us48_netgen_mwh": 10719697.0,
      "value_status": "final",
      "date": "2026-11-03",
      "us48_demand_mwh": 10886383.0,
      "fetched_at": "2026-11-09 18:00"
    },
    {
      "us48_netgen_mwh": 10621154.0,
      "value_status": "final",
      "date": "2026-11-04",
      "us48_demand_mwh": 10774723.0,
      "fetched_at": "2026-11-11 18:00"
    },
    {
      "us48_netgen_mwh": 10734904.0,
      "value_status": "final",
      "date": "2026-11-05",
      "us48_demand_mwh": 10897817.0,
      "fetched_at": "2026-11-11 18:00"
    },
    {
      "us48_netgen_mwh": 10580962.0,
      "value_status": "final",
      "date": "2026-11-06",
      "us48_demand_mwh": 10772737.0,
      "fetched_at": "2026-11-11 18:00"
    },
    {
      "us48_netgen_mwh": 10050583.0,
      "value_status": "final",
      "date": "2026-11-07",
      "us48_demand_mwh": 10212547.0,
      "fetched_at": "2026-11-11 18:00"
    },
    {
      "us48_netgen_mwh": 9954105.0,
      "value_status": "final",
      "date": "2026-11-08",
      "us48_demand_mwh": 10088210.0,
      "fetched_at": "2026-11-11 18:00"
    },
    {
      "us48_netgen_mwh": 10545474.0,
      "value_status": "final",
      "date": "2026-11-09",
      "us48_demand_mwh": 10668388.0,
      "fetched_at": "2026-11-11 18:00"
    },
    {
      "us48_netgen_mwh": null,
      "value_status": "provisional",
      "date": "2026-11-10",
      "us48_demand_mwh": 10789313.0,
      "fetched_at": "2026-11-11 18:00"
    }
  ],
  "status": "observing",
  "status_note": "Observing only: figures are collected and published, but no good/bad criterion has been defined for this edition yet (criteria are frozen as versioned definitions before use; none exists for the U.S. edition as of 2026-08-29). Do not infer thresholds.",
  "value_status_note": "value_status=final means fetched 2 or more days after the observation day (ET); provisional means fetched earlier and may still be revised. Recent days are refetched daily and provisional points are replaced.",
  "data_status": "live",
  "can_say": [
    "How much electricity the Lower 48 used and generated each day, in MWh, as EIA-930 publishes it (daily totals; provisional until refetched two or more days later).",
    "Whether daily demand is rising or falling within this edition, day by day (the balancing-authority breakdown is kept in a separate machine-readable file).",
    "Which days are final and which are still provisional, and when each value was retrieved."
  ],
  "sources": [
    {
      "name": "U.S. Energy Information Administration, Hourly Electric Grid Monitor (Form EIA-930)",
      "license": "Public domain (U.S. federal government work). API key is free.",
      "url": "https://www.eia.gov/opendata/"
    }
  ],
  "cannot_say": [
    "Whether the U.S. grid is tight or has spare capacity (EIA-930 publishes demand and generation, not a reserve margin; no emergency-alert count is observed yet).",
    "Whether any level is good or bad for AI, or how U.S. conditions compare with the Japan edition's reserve-margin badge (different indicator, different institution).",
    "What any single data center or operator drew (regional aggregates only)."
  ],
  "generated": "2026-11-11 18:01",
  "breakdown": {
    "unit": "MWh (daily total)",
    "regions_count": 13,
    "files": {
      "2026": "/us/api/power_us_breakdown_2026.json"
    },
    "from": "2026-08-01",
    "balancing_authorities_count": 61,
    "note": "Machine-readable breakdown only. The per-respondent daily series (13 EIA regions + every balancing authority) is split by year into the files listed in files; this body keeps the last 90 days of the Lower 48 aggregate and the latest-day table. Backfilled from 2026-08-01 (2026-09-03).",
    "respondents": 74
  },
  "unit_note": "demand/net generation values are daily totals in megawatthours (MWh), as published by EIA (Form EIA-930, Eastern timezone aggregation).",
  "region": "us",
  "answer_line": "This chapter is observing (no good/bad criterion): observation started 2026-08-29, 2 series, latest confirmed 2026-11-10. Latest final value: Lower 48 total demand 10,668,388 MWh (2026-11-09). (Source: U.S. EIA (Form EIA-930) / updated 2026-11-11 18:01 JST)",
  "answer_line_date": "2026-11-09",
  "answer_kind": "observing",
  "headline_answer": {
    "series": "us48_demand_mwh",
    "label": "Lower 48 total demand",
    "value": 10668388.0,
    "unit": "MWh",
    "date": "2026-11-09",
    "threshold": null
  },
  "faq": [
    {
      "q": "How much electricity did the U.S. Lower 48 grid use on the latest confirmed day?",
      "a": "On 2026-11-09 (ET), total demand of the Lower 48 was 10,668,388 MWh and net generation 10,545,474 MWh (final values). Source: U.S. Energy Information Administration, Hourly Electric Grid Monitor (Form EIA-930, public domain), retrieved 2026-11-11 18:00."
    },
    {
      "q": "Is the most recent day's value final?",
      "a": "The most recent observation is 2026-11-10: 10,789,313 MWh, value_status provisional. The latest final day is 2026-11-09. A provisional day is refetched and replaced by the final value on a later batch. The per-balancing-authority breakdown is machine-readable only (https://ai-lifeline.org/us/api/power_us.json, key breakdown)."
    },
    {
      "q": "What is the source and how often is it updated?",
      "a": "U.S. Energy Information Administration, Hourly Electric Grid Monitor (Form EIA-930), retrieved once a day at 18:00 JST; observation started 2026-08-29, backfilled from EIA history to 2026-08-01. Last updated 2026-11-11 18:01 JST. Machine-readable: https://ai-lifeline.org/us/api/power_us.json"
    },
    {
      "q": "What can this data not tell you?",
      "a": "What this chapter cannot say (ledger v1.0, approved 2026-09-05; full text in the method section): Whether the U.S. grid is tight or has spare capacity (EIA-930 publishes demand and generation, not a reserve margin; no emergency-alert count is observed yet); Whether any level is good or bad for AI, or how U.S. conditions compare with the Japan edition's reserve-margin badge (different indicator, different institution); What any single data center or operator drew (regional aggregates only)."
    }
  ],
  "citation": {
    "page": "https://ai-lifeline.org/us/power/",
    "api": "https://ai-lifeline.org/us/api/power_us.json",
    "last_confirmed": "2026-11-10",
    "next_expected": "2026-11-10",
    "generated": "2026-11-11 18:01",
    "observation_start": "2026-08-29",
    "series_count": 2,
    "series_not_yet_measured": 0,
    "title_short": "Lower 48 demand 10,668,388 MWh (final 11/9)",
    "generated_by": "citation layer (post-processing after each daily batch)",
    "ledger_version": "v1.1-2026-09-06",
    "keys_written": [
      "summary",
      "cite_as",
      "answer_line",
      "answer_line_date",
      "answer_kind",
      "headline_answer",
      "faq",
      "citation"
    ]
  }
}