Off-grid power planner

Open Off-grid power planner on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "off-grid-power-planner",
  "category": "calculators",
  "built": true,
  "requirements": "Up to 100 uniquely named appliance rows and 100,000 characters. Quantity 1 to 10,000; running power 0 to 1 million W per unit; hours 0 to 24/day; starting power 0 to 10 million W and at least running power for active units. Positive sun hours up to 24/day; total losses 0 to 99%; positive autonomy up to 365 days; depth of discharge and one-way efficiency above 0 to 100%; bank voltage above 0 to 1,000 V; checked PV power 0 to 1 billion W. JSON report, results CSV and appliance CSV.",
  "implementation": {
    "fields": [
      {
        "key": "sunHours",
        "label": "Worst-month peak sun hours per day",
        "value": "",
        "type": "number",
        "min": 0,
        "max": 24,
        "step": "any",
        "help": "Required. Enter a sourced daily average for the design month; no regional irradiation is supplied."
      },
      {
        "key": "systemLoss",
        "label": "PV-to-load energy losses (%)",
        "value": 0,
        "type": "number",
        "min": 0,
        "max": 99,
        "step": "any",
        "help": "A single total budget for PV, wiring, charging/storage and conversion losses. Include each effect once."
      },
      {
        "key": "autonomyDays",
        "label": "Days of storage autonomy",
        "value": 2,
        "type": "number",
        "min": 0,
        "max": 365,
        "step": "any"
      },
      {
        "key": "depthOfDischarge",
        "label": "Allowed depth of discharge (%)",
        "value": 80,
        "type": "number",
        "min": 0,
        "max": 100,
        "step": "any"
      },
      {
        "key": "dischargeEfficiency",
        "label": "Battery-to-load discharge efficiency (%)",
        "value": 100,
        "type": "number",
        "min": 0,
        "max": 100,
        "step": "any",
        "help": "Used only to size nominal storage. Include inverter discharge losses once; this is a one-way fraction, not round-trip efficiency."
      },
      {
        "key": "batteryVoltage",
        "label": "Nominal battery-bank voltage (V)",
        "value": 48,
        "type": "number",
        "min": 0,
        "max": 1000,
        "step": "any"
      },
      {
        "key": "surgeMode",
        "label": "Startup coincidence assumption",
        "value": "All appliances start together",
        "type": "select",
        "values": [
          "All appliances start together",
          "One unit starts at a time"
        ]
      },
      {
        "key": "arrayMode",
        "label": "PV array calculation",
        "value": "Size required array",
        "type": "select",
        "values": [
          "Size required array",
          "Check entered array"
        ]
      },
      {
        "key": "arrayWatts",
        "label": "Entered PV nameplate capacity (W)",
        "value": 1000,
        "type": "number",
        "min": 0,
        "max": 1000000000,
        "step": "any",
        "showWhen": {
          "arrayMode": [
            "Check entered array"
          ]
        }
      }
    ],
    "registrationFamily": "home-energy-planning",
    "input": true,
    "live": false,
    "presentation": "metrics",
    "inputMaxLength": 100000,
    "inputErrorCode": "HOME_ENERGY_PLANNING_TOO_LONG",
    "note": "Calculated on your device for up to 100 appliances. This daily energy budget does not size cables, fuses, charge controllers or a compliant electrical installation.",
    "inputKeywords": [
      {
        "id": "home-energy-planning/off-grid-power-planner/appliances.header",
        "kind": "header",
        "code": "HOME_ENERGY_PLANNING_OFFGRID_HEADER",
        "fold": "lower",
        "values": {
          "appliance": [
            "appliance",
            "Appliance"
          ],
          "quantity": [
            "quantity",
            "Appliance count"
          ],
          "watts": [
            "watts",
            "Watts"
          ],
          "hours": [
            "hours",
            "Hours"
          ],
          "surge": [
            "surge",
            "Surge"
          ]
        },
        "describedBy": [
          "Name the columns Appliance, Quantity, Watts, Hours and Surge, in that order, or omit the header.",
          "Appliance load list"
        ]
      }
    ],
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 100000,
      "inputMode": "text",
      "label": "Appliance load list",
      "placeholder": "Lights,4,10,5,10\nFridge,1,100,8,600",
      "help": "One appliance per line: name, quantity, running W, hours per day and total starting W per unit. Up to 100,000 characters. Review the settings before running.",
      "helpParts": [
        "One appliance per line: name, quantity, running W, hours per day and total starting W per unit.",
        "Up to 100,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

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