{
  "slug": "compressed-air-cost",
  "title": "Compressed Air Cost Calculator",
  "heading": "Compressed Air Energy Cost Calculator",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/compressed-air-cost",
  "summary": "Electricity cost of running a compressor, and the cost of leaks.",
  "description": "Compressed air is often called the most expensive utility in a plant because so much energy is lost between the compressor and the point of use — typical industrial compressed air systems are only 10-15% efficient overall from electrical input to useful work delivered at the tool. This calculator estimates the annual electricity cost to run a compressor based on motor horsepower, load factor, and run hours, then separately estimates the cost of air leaks, which studies consistently show waste 20-30% of compressed air output in a typical unaudited plant. A single 1/8-inch leak at 100 PSI can cost $1,200-1,800 per year in wasted electricity alone if the compressor runs continuously, which is why leak surveys are one of the highest-ROI maintenance activities available in most manufacturing facilities.",
  "formula": "Annual Compressor Cost = HP × 0.746 kW/HP × Load Factor × Run Hours × Electricity Rate ÷ Motor Efficiency. Leak Cost = Estimated Leak % × Annual Compressor Cost.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=compressed-air-cost",
  "inputs": [
    {
      "id": "hp",
      "label": "Compressor motor size",
      "kind": "number",
      "hint": null,
      "default": 75,
      "unit": "hp",
      "min": 1,
      "max": null
    },
    {
      "id": "loadFactor",
      "label": "Average load factor",
      "kind": "number",
      "hint": null,
      "default": 65,
      "unit": "%",
      "min": 5,
      "max": 100
    },
    {
      "id": "runHours",
      "label": "Run hours per year",
      "kind": "number",
      "hint": null,
      "default": 4200,
      "unit": "hrs",
      "min": 1,
      "max": null
    },
    {
      "id": "electricityRate",
      "label": "Electricity rate",
      "kind": "number",
      "hint": null,
      "default": 0.12,
      "unit": "$/kWh",
      "min": 0.01,
      "max": null
    },
    {
      "id": "motorEff",
      "label": "Motor efficiency",
      "kind": "number",
      "hint": null,
      "default": 92,
      "unit": "%",
      "min": 50,
      "max": 100
    },
    {
      "id": "leakPct",
      "label": "Estimated system leak rate",
      "kind": "number",
      "hint": null,
      "default": 25,
      "unit": "%",
      "min": 0,
      "max": 60
    }
  ],
  "outputs": [
    {
      "id": "annualCost",
      "label": "Annual electricity cost to run compressor",
      "format": "currency",
      "hint": null,
      "primary": true
    },
    {
      "id": "leakCost",
      "label": "Estimated annual cost of leaks",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "potentialSavings",
      "label": "Potential savings from leak repair program",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "kw",
      "label": "Average power draw",
      "format": "decimal",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Compressor motor size: 75 hp",
      "Average load factor: 65 %",
      "Run hours per year: 4200 hrs",
      "Electricity rate: 0.12 $/kWh",
      "Motor efficiency: 92 %",
      "Estimated system leak rate: 25 %"
    ],
    "outputs": [
      "Annual electricity cost to run compressor: $19,923",
      "Estimated annual cost of leaks: $4,981",
      "Potential savings from leak repair program: $3,985",
      "Average power draw: 39.5"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter compressor motor size (hp).",
      "Enter average load factor (%).",
      "Enter run hours per year (hrs).",
      "Enter electricity rate ($/kWh).",
      "Enter motor efficiency (%).",
      "Enter estimated system leak rate (%).",
      "Read your annual electricity cost to run compressor on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "hp": 45,
        "loadFactor": 40,
        "runHours": 2500,
        "electricityRate": 0.072,
        "motorEff": 55,
        "leakPct": 15
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "hp": 75,
        "loadFactor": 65,
        "runHours": 4200,
        "electricityRate": 0.12,
        "motorEff": 92,
        "leakPct": 25
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "hp": 120,
        "loadFactor": 100,
        "runHours": 6700,
        "electricityRate": 0.192,
        "motorEff": 100,
        "leakPct": 40
      }
    }
  ],
  "limitations": [
    "Results are estimates before tax, fees, and inflation unless an input explicitly covers them.",
    "Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.",
    "This is educational maths, not financial advice. Check anything contractual with the lender or your accountant."
  ],
  "faq": [
    {
      "q": "How do I estimate my leak percentage without a formal audit?",
      "a": "Run the compressor during a period when no equipment is actively using air (weekend, overnight) and measure how often it cycles on to maintain pressure — if it's cycling frequently with nothing running, that's pure leak load. Industry studies commonly find 20-30% leak rates in plants that haven't run a leak-detection program; well-maintained systems with regular ultrasonic leak surveys can get below 10%."
    },
    {
      "q": "What's a realistic load factor for load factor input?",
      "a": "Load factor represents average output as a percentage of full compressor capacity — most plants don't run a compressor at 100% output continuously. 50-70% is typical for a right-sized system with normal demand variation; running consistently near 100% suggests the compressor is undersized for demand, while running well under 40% suggests it's oversized."
    },
    {
      "q": "Why is compressed air called an expensive utility?",
      "a": "Because electric-to-compressed-air-to-useful-work conversion loses energy at every stage — compression heat, distribution leaks, pressure drop, and inefficient end-use devices. Only about 10-15% of the electrical energy input ends up as usable work at the tool, meaning generating compressed air costs roughly 7-10x the raw electricity price per unit of actual work delivered."
    },
    {
      "q": "What ROI does a leak repair program typically deliver?",
      "a": "Leak surveys and repairs are consistently one of the fastest-payback projects in a plant, often paying for the ultrasonic detection equipment and technician time within the first few months just from the electricity saved, especially in plants that haven't done a survey in several years."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/machine-hourly-rate",
    "https://www.revenuelab.fyi/toolbox/preventive-maintenance-vs-downtime"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Compressed Air Cost Calculator (https://www.revenuelab.fyi/toolbox/compressed-air-cost)"
}