{
  "provider": {
    "name": "CalculateEnergySavings.com",
    "source_url": "https://calculateenergysavings.com/",
    "terms_url": "https://calculateenergysavings.com/api-terms/",
    "terms_version": "2026-08-25"
  },
  "id": "demand-controlled-ventilation",
  "name": "Demand-Controlled Ventilation Savings Calculator",
  "description": "Screen fan and outdoor-air conditioning savings from occupancy-based ventilation reset.",
  "status": "published",
  "callable": true,
  "version": "1.0.0",
  "url": "https://calculateenergysavings.com/calculators/demand-controlled-ventilation/",
  "methodology_url": "https://calculateenergysavings.com/calculators/demand-controlled-ventilation/#methodology",
  "api_url": "https://calculateenergysavings.com/api/v1/calculators/demand-controlled-ventilation",
  "calculate_url": "https://calculateenergysavings.com/api/v1/calculators/demand-controlled-ventilation/calculate",
  "input_schema": {
    "type": "object",
    "additionalProperties": false,
    "properties": {
      "designOutdoorAirCfm": {
        "type": "number",
        "default": 10000,
        "title": "Design outdoor airflow",
        "x-unit": "cfm"
      },
      "minimumOutdoorAirCfm": {
        "type": "number",
        "default": 3500,
        "title": "Required minimum outdoor airflow",
        "x-unit": "cfm",
        "description": "Area component or other code-required floor"
      },
      "averageReductionPercent": {
        "type": "number",
        "default": 35,
        "title": "Average occupancy-related reduction",
        "x-unit": "%"
      },
      "hours": {
        "type": "number",
        "default": 3500,
        "title": "Occupied hours",
        "x-unit": "hrs/year"
      },
      "fanWPerCfm": {
        "type": "number",
        "default": 0.8,
        "title": "Fan input",
        "x-unit": "W/cfm"
      },
      "conditioningKwhPer1000CfmHour": {
        "type": "number",
        "default": 0.35,
        "title": "Conditioning intensity",
        "x-unit": "kWh/1,000 cfm-hour"
      },
      "electricityRate": {
        "type": "number",
        "default": 0.12
      },
      "installedCost": {
        "type": "number"
      },
      "incentiveAmount": {
        "type": "number",
        "default": 0
      },
      "annualMaintenanceSavings": {
        "type": "number",
        "default": 0
      },
      "projectLife": {
        "type": "number",
        "default": 15
      },
      "discountRatePercent": {
        "type": "number",
        "default": 7
      },
      "energyEscalationPercent": {
        "type": "number",
        "default": 2.5
      }
    }
  },
  "example_inputs": {
    "designOutdoorAirCfm": 10000,
    "minimumOutdoorAirCfm": 3500,
    "averageReductionPercent": 35,
    "hours": 3500,
    "fanWPerCfm": 0.8,
    "conditioningKwhPer1000CfmHour": 0.35,
    "electricityRate": 0.12,
    "installedCost": "",
    "incentiveAmount": 0,
    "annualMaintenanceSavings": 0,
    "projectLife": 15,
    "discountRatePercent": 7,
    "energyEscalationPercent": 2.5
  },
  "source_url": "https://www.energy.gov/cmei/femp/energy-and-water-management-software-tools",
  "formulas": [
    "Avoided airflow is limited so proposed flow never falls below the entered code-required minimum.",
    "Savings combine fan input and entered conditioning intensity."
  ],
  "disclaimer": "Screening estimate only. Verify measurements, assumptions, tariffs, equipment constraints, and applicable requirements before making a project or purchasing decision."
}