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  "path": "/2026/04/19/from-beacon-to-amber-flywheels-missed-the-grid/",
  "publishedAt": "2026-04-20T00:25:07.000Z",
  "site": "https://cleantechnica.com",
  "tags": [
    "Batteries",
    "Climate Change",
    "Energy Storage",
    "Green Economy",
    "Grid",
    "Investment",
    "Manufacturing",
    "Market Research",
    "Policy & Politics",
    "Policy Research",
    "Research",
    "Smart Grid",
    "beacon power",
    "Flywheel Energy Storage",
    "US Department of Energy (DOE)",
    "From Beacon to Amber, Flywheels Missed the Grid",
    "CleanTechnica"
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  "textContent": "Amber Kinetics crossing my screen today was a reminder that electricity markets are littered with technologies that never quite die. Flywheels are one of those ideas. They are mechanically elegant, grounded in physics everyone understands, and they solve a real problem in principle. Store energy in a spinning mass, pull ... [continued]\n\nThe post From Beacon to Amber, Flywheels Missed the Grid appeared first on CleanTechnica.",
  "title": "From Beacon to Amber, Flywheels Missed the Grid"
}