{
  "starting": {
    "resultSchema": "infrastructure-screen-1",
    "contentVersion": "2.0.0",
    "modelVersion": "1.0.0",
    "lessonId": "generator-bank-fuel",
    "model": "capacityBank",
    "inputs": {
      "requiredMW": 27,
      "unitMW": 2.4,
      "derating": 1,
      "loading": 1,
      "installed": 10,
      "unavailable": 1
    },
    "outputs": {
      "usableUnitMW": 2.4,
      "availableMW": 21.599999999999998,
      "marginMW": -5.400000000000002,
      "minimumNPlusOne": 13,
      "status": "screen-failed"
    },
    "inputUnits": {
      "requiredMW": "MW",
      "unitMW": "MW/unit",
      "derating": "ratio",
      "loading": "ratio",
      "installed": "units",
      "unavailable": "units"
    },
    "outputUnits": {
      "usableUnitMW": "MW/unit",
      "availableMW": "MW",
      "marginMW": "MW",
      "minimumNPlusOne": "units",
      "status": "screen state"
    },
    "assumptions": [
      "Unit capacity is multiplied by the stated derating and loading factors."
    ],
    "limitations": [
      "Educational screen only; no equipment selection, facility calibration, professional review or certification.",
      "No dynamics, protection coordination, site conditions or manufacturer-specific behavior are inferred.",
      "Capacity-only redesign screens; no approved generator selection or operational switching procedure.",
      "Fuel coefficient is fixed and source-specific; variable-load consumption requires integration."
    ],
    "sourceLocators": [
      {
        "id": "DCIE-R1",
        "chapter": 4,
        "pdfPages": [
          22,
          25
        ],
        "evidenceStatus": "manuscript-derived; not independent source verification"
      }
    ],
    "inputHash": "1ab06137bb077005f8580281d4ab2db2da3c9cdb3dc95398261d62807a0e814e",
    "sourceRevision": "e4d47bd6616aa54e19c7da5ee4e2a98afe6209c1",
    "independentEngineeringVerification": false,
    "resultHash": "2b1a4084d4b50da9ad2d728da669132e19d11f2903ce5f8da15e8251b5f6e004"
  },
  "challenge": {
    "resultSchema": "infrastructure-screen-1",
    "contentVersion": "2.0.0",
    "modelVersion": "1.0.0",
    "lessonId": "generator-bank-fuel",
    "model": "capacityBank",
    "inputs": {
      "requiredMW": 27,
      "unitMW": 2.4,
      "derating": 1,
      "loading": 1,
      "installed": 13,
      "unavailable": 1
    },
    "outputs": {
      "usableUnitMW": 2.4,
      "availableMW": 28.799999999999997,
      "marginMW": 1.7999999999999972,
      "minimumNPlusOne": 13,
      "status": "screen-satisfied"
    },
    "inputUnits": {
      "requiredMW": "MW",
      "unitMW": "MW/unit",
      "derating": "ratio",
      "loading": "ratio",
      "installed": "units",
      "unavailable": "units"
    },
    "outputUnits": {
      "usableUnitMW": "MW/unit",
      "availableMW": "MW",
      "marginMW": "MW",
      "minimumNPlusOne": "units",
      "status": "screen state"
    },
    "assumptions": [
      "Unit capacity is multiplied by the stated derating and loading factors."
    ],
    "limitations": [
      "Educational screen only; no equipment selection, facility calibration, professional review or certification.",
      "No dynamics, protection coordination, site conditions or manufacturer-specific behavior are inferred.",
      "Capacity-only redesign screens; no approved generator selection or operational switching procedure.",
      "Fuel coefficient is fixed and source-specific; variable-load consumption requires integration."
    ],
    "sourceLocators": [
      {
        "id": "DCIE-R1",
        "chapter": 4,
        "pdfPages": [
          22,
          25
        ],
        "evidenceStatus": "manuscript-derived; not independent source verification"
      }
    ],
    "inputHash": "9307b2b43fe313ba6fcce610d95782460d9b3628e5b7f52468e4485d1215fe2c",
    "sourceRevision": "e4d47bd6616aa54e19c7da5ee4e2a98afe6209c1",
    "independentEngineeringVerification": false,
    "resultHash": "a014ab547739c3e89ecdce423ea9b3e8e647b1601580048af7683bb092a27891"
  },
  "fuel": {
    "resultSchema": "infrastructure-screen-1",
    "contentVersion": "2.0.0",
    "modelVersion": "1.0.0",
    "lessonId": "generator-bank-fuel",
    "model": "fuelScreen",
    "inputs": {
      "loadKW": 27000,
      "hours": 48,
      "litresPerKWh": 0.25
    },
    "outputs": {
      "usableLitres": 324000
    },
    "inputUnits": {
      "loadKW": "kW",
      "hours": "h",
      "litresPerKWh": "L/kWh"
    },
    "outputUnits": {
      "usableLitres": "L"
    },
    "assumptions": [
      "Fuel use is constant at the supplied load and source coefficient."
    ],
    "limitations": [
      "Educational screen only; no equipment selection, facility calibration, professional review or certification.",
      "No dynamics, protection coordination, site conditions or manufacturer-specific behavior are inferred.",
      "Capacity-only redesign screens; no approved generator selection or operational switching procedure.",
      "Fuel coefficient is fixed and source-specific; variable-load consumption requires integration."
    ],
    "sourceLocators": [
      {
        "id": "DCIE-R1",
        "chapter": 4,
        "pdfPages": [
          22,
          25
        ],
        "evidenceStatus": "manuscript-derived; not independent source verification"
      }
    ],
    "inputHash": "1ea0d8967da7690988243d48057541f538c73b4dfe3562d9e4e53a8901377ced",
    "sourceRevision": "e4d47bd6616aa54e19c7da5ee4e2a98afe6209c1",
    "independentEngineeringVerification": false,
    "resultHash": "fde6869d48cf30a8370f47bce16c2bf52003454c21c22b2947012eb5d5ae1611"
  },
  "engineeringDecision": "HOLD"
}