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  "path": "/2026/06/californias-first-eight-hour-grid-battery-just-came-online/",
  "publishedAt": "2026-06-17T00:00:56.000Z",
  "site": "https://www.optimistdaily.com",
  "tags": [
    "Circularity",
    "Climate Action",
    "Energy",
    "Environment",
    "Evergreen",
    "Science",
    "Technology",
    "Trending",
    "World Business Academy Highlight",
    "California",
    "California clean energy grid",
    "California energy storage",
    "clean energy",
    "climate",
    "eight-hour grid battery",
    "energy storage",
    "Grid technology",
    "Innovation",
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    "Tumbleweed battery project",
    "California’s first eight-hour grid battery just came online",
    "The Optimist Daily: Making Solutions the News"
  ],
  "textContent": "BY THE OPTIMIST DAILY EDITORIAL TEAM The California grid has a timing problem. Solar runs from mid-morning through early evening. Demand peaks later. Batteries have bridged part of that gap for years, but only about four hours’ worth. On June 1, a project in Kern County doubled that window. Tumbleweed, a 125-megawatt battery installation, went […]\n\nThe post California’s first eight-hour grid battery just came online first appeared on The Optimist Daily: Making Solutions the News.",
  "title": "California’s first eight-hour grid battery just came online"
}