{
  "provider": {
    "name": "CalculateEnergySavings.com",
    "source_url": "https://calculateenergysavings.com/",
    "terms_url": "https://calculateenergysavings.com/api-terms/",
    "terms_version": "2026-08-25"
  },
  "id": "energy-recovery-ventilation",
  "name": "Energy Recovery Ventilation Savings Calculator",
  "description": "Estimate recovered outdoor-air conditioning energy after wheel or core effectiveness and added fan power.",
  "status": "published",
  "callable": true,
  "version": "1.0.0",
  "url": "https://calculateenergysavings.com/calculators/energy-recovery-ventilation/",
  "methodology_url": "https://calculateenergysavings.com/calculators/energy-recovery-ventilation/#methodology",
  "api_url": "https://calculateenergysavings.com/api/v1/calculators/energy-recovery-ventilation",
  "calculate_url": "https://calculateenergysavings.com/api/v1/calculators/energy-recovery-ventilation/calculate",
  "input_schema": {
    "type": "object",
    "additionalProperties": false,
    "properties": {
      "hours": {
        "type": "number",
        "default": 3500,
        "title": "Annual operating hours",
        "x-unit": "hrs/year"
      },
      "annualConditioningKwh": {
        "type": "number",
        "default": 180000,
        "title": "Outdoor-air conditioning energy",
        "x-unit": "kWh/year"
      },
      "recoveryEffectivenessPercent": {
        "type": "number",
        "default": 70,
        "title": "Recovery effectiveness",
        "x-unit": "%",
        "description": "Use a value consistent with the sensible or enthalpy basis of the annual energy input"
      },
      "addedFanKw": {
        "type": "number",
        "default": 4,
        "title": "Added fan input",
        "x-unit": "kW"
      },
      "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": {
    "hours": 3500,
    "annualConditioningKwh": 180000,
    "recoveryEffectivenessPercent": 70,
    "addedFanKw": 4,
    "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": [
    "Recovered energy = outdoor-air conditioning energy × effectiveness.",
    "Net savings subtract added fan kWh."
  ],
  "disclaimer": "Screening estimate only. Verify measurements, assumptions, tariffs, equipment constraints, and applicable requirements before making a project or purchasing decision."
}