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    "story_id": "mp-2026-07-17-015",
    "source_story_id": "tmp-sidebar-plugin-hybrid-real-consumption",
    "edition_id": "mp-2026-07-17-morning-0008",
    "edition_url": "https://themachinepress.com/edition/2026-07-17",
    "position": 17,
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    "section": "consumer-products",
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    "headline": "A Plug-In Hybrid Only Works If It Is Plugged In",
    "slug": "a-plug-in-hybrid-only-works-if-it-is-plugged-in",
    "dek": "Cold weather, cabin heat, aggressive driving, and infrequent charging can erase much of the electric advantage.",
    "summary": "Cold weather, cabin heat, aggressive driving, and infrequent charging can erase much of the electric advantage.",
    "body_text": "Empa tested 12 vehicles across temperatures and driving profiles. An uncharged plug-in hybrid can behave like a heavier combustion car; the result supports usage-aware estimates.",
    "why_it_matters": "Cold weather, cabin heat, aggressive driving, and infrequent charging can erase much of the electric advantage.",
    "limitations": [],
    "importance": 7,
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    "first_published_at": "2026-07-17T09:00:00.000-04:00",
    "modified_at": "2026-07-17T14:34:04.943-04:00",
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        "claim_id": "claim-mp-2026-07-17-015-001",
        "text": "Cold weather, cabin heat, aggressive driving, and infrequent charging can erase much of the electric advantage.",
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        "qualification": null
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    "source_ids": [
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    "tags": [
      "plug-in hybrids",
      "fuel economy"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-07-17-017",
      "title": "Empa via Newswise: Plug-in hybrid consumption",
      "publisher": "Empa via Newswise",
      "url": "https://www.newswise.com/articles/why-the-actual-fuel-consumption-of-plug-in-hybrids-is-often-higher",
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      "published_at": "2026-07-16T05:00:00.000-04:00",
      "accessed_at": "2026-07-17T11:30:57.481-04:00",
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  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "A Plug-In Hybrid Only Works If It Is Plugged In",
    "publisher": "The Machine Press",
    "published_at": "2026-07-17T09:00:00.000-04:00",
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