{
  "name": "Inverter-size JSON endpoint",
  "description": "Returns recommended inverter continuous watts, surge watts, DC current, fuse planning, and battery-runtime warnings from AC load assumptions.",
  "publisher": {
    "name": "OffGridRVHub",
    "url": "https://www.offgridrvhub.com"
  },
  "source": {
    "endpoint": "https://www.offgridrvhub.com/tools/api/inverter-size.json",
    "fullCalculator": "https://www.offgridrvhub.com/tools/inverter-size-calculator",
    "assumptions": "https://www.offgridrvhub.com/tools/calculator-assumptions",
    "documentation": "https://www.offgridrvhub.com/tools/calculator-api"
  },
  "caveat": "This is a planning estimate for RV education and comparison. It is not electrical, plumbing, safety, or installation advice.",
  "input": {
    "loads": [
      {
        "name": "Microwave",
        "runningWatts": 1200,
        "startupSurgeWatts": 1800,
        "quantity": 1
      },
      {
        "name": "Coffee maker",
        "runningWatts": 900,
        "startupSurgeWatts": 900,
        "quantity": 1
      },
      {
        "name": "Laptop and monitor",
        "runningWatts": 140,
        "startupSurgeWatts": 140,
        "quantity": 1
      }
    ],
    "batteryVoltage": 12,
    "batteryAh": 300,
    "batteryType": "lithium",
    "inverterEfficiencyPercent": 90,
    "continuousLoadPercent": 125,
    "targetRuntimeHours": 1
  },
  "result": {
    "totalRunningWatts": 2240,
    "largestSurgeDeltaWatts": 600,
    "estimatedStartupWatts": 2840,
    "designContinuousWatts": 2800,
    "recommendedContinuousWatts": 3000,
    "recommendedSurgeWatts": 3500,
    "dcCurrentAtDesignAmps": 259.3,
    "dcCurrentAtSurgeAmps": 263,
    "usableBatteryWh": 3240,
    "estimatedRuntimeHours": 1.3,
    "targetRuntimeGapHours": 0,
    "recommendedBatteryAhForTarget": 250,
    "recommendedFuseFloorAmps": 300,
    "highCurrentRisk": true,
    "surgeDominated": false,
    "verdictTitle": "The inverter target works, but DC current is the hard part",
    "verdictDetail": "The listed AC loads total 2,240W running and about 2,840W at startup. A 3,000W continuous inverter with roughly 3,500W surge is the planning target.",
    "recommendedNextMove": "Open the wire-size calculator next and check whether the DC cable path, fuse, and battery terminals can support the current.",
    "watchOuts": [
      "This is an inverter planning estimate. Final inverter size, wiring, fuse class, transfer switching, ventilation, grounding, and installation details should follow manufacturer instructions and applicable codes.",
      "Startup surge is estimated as all listed running loads plus the single largest surge delta. If multiple motors or compressors start together, real surge can be higher.",
      "The DC current is high. Short cable runs, correct fuse class, proper lugs, and possibly a 24V or 48V architecture matter more as inverter size rises."
    ]
  }
}