{
  "provider": {
    "name": "CalculateEnergySavings.com",
    "source_url": "https://calculateenergysavings.com/",
    "terms_url": "https://calculateenergysavings.com/api-terms/",
    "terms_version": "2026-08-25"
  },
  "id": "grant-impact",
  "name": "Grant Impact on Project Economics Calculator",
  "description": "Show how a grant changes net project cost, payback, and NPV.",
  "status": "published",
  "callable": true,
  "version": "1.0.0",
  "url": "https://calculateenergysavings.com/calculators/grant-impact/",
  "methodology_url": "https://calculateenergysavings.com/calculators/grant-impact/#methodology",
  "api_url": "https://calculateenergysavings.com/api/v1/calculators/grant-impact",
  "calculate_url": "https://calculateenergysavings.com/api/v1/calculators/grant-impact/calculate",
  "input_schema": {
    "type": "object",
    "additionalProperties": false,
    "properties": {
      "projectCost": {
        "type": "number",
        "title": "Project cost",
        "x-unit": "$"
      },
      "grantAmount": {
        "type": "number",
        "default": 0,
        "title": "Grant amount",
        "x-unit": "$"
      },
      "annualSavings": {
        "type": "number",
        "title": "First-year savings",
        "x-unit": "$/year"
      },
      "projectLife": {
        "type": "number",
        "default": 15,
        "title": "Project life",
        "x-unit": "years"
      },
      "discountRatePercent": {
        "type": "number",
        "default": 7,
        "title": "Discount rate",
        "x-unit": "%"
      },
      "savingsEscalationPercent": {
        "type": "number",
        "default": 2.5,
        "title": "Savings escalation",
        "x-unit": "%/year"
      }
    }
  },
  "example_inputs": {
    "projectCost": "",
    "grantAmount": 0,
    "annualSavings": "",
    "projectLife": 15,
    "discountRatePercent": 7,
    "savingsEscalationPercent": 2.5
  },
  "source_url": "https://betterbuildingssolutioncenter.energy.gov/financing-navigator",
  "formulas": [
    "Grant reduces owner net cost but does not change underlying energy savings.",
    "With-grant and without-grant payback and NPV are calculated side by side."
  ],
  "disclaimer": "Screening estimate only. Verify measurements, assumptions, tariffs, equipment constraints, and applicable requirements before making a project or purchasing decision."
}