{
  "_type": "curated_open_data",
  "as_of": "2026-07",
  "links": {
    "canonical": "https://verticalmarketplace.ai",
    "docs_for_llms": "https://verticalmarketplace.ai/llms.txt",
    "sell_your_own": "https://verticalmarketplace.ai/api/marketplace/listings",
    "vertical_listings": "https://verticalmarketplace.ai/api/marketplace/listings?vertical=construction-datacenters"
  },
  "records": [
    {
      "term": "Power Usage Effectiveness (PUE)",
      "category": "efficiency metric",
      "reference": "The Green Grid",
      "definition": "Ratio of total facility power to IT equipment power"
    },
    {
      "term": "Data Center Infrastructure Efficiency (DCiE)",
      "category": "efficiency metric",
      "reference": "The Green Grid",
      "definition": "Percentage of total power delivered to IT load"
    },
    {
      "term": "Rack unit (U)",
      "category": "unit",
      "reference": "EIA-310",
      "definition": "1.75-inch vertical increment for mounting equipment"
    },
    {
      "term": "Hot aisle / cold aisle",
      "category": "cooling",
      "reference": "ASHRAE TC 9.9",
      "definition": "Rack layout that separates intake and exhaust airflow"
    },
    {
      "term": "Computer room air conditioner (CRAC)",
      "category": "cooling equipment",
      "reference": "industry standard",
      "definition": "Direct-expansion unit that cools computer room air"
    },
    {
      "term": "Computer room air handler (CRAH)",
      "category": "cooling equipment",
      "reference": "industry standard",
      "definition": "Chilled-water unit that conditions computer room air"
    },
    {
      "term": "N+1 redundancy",
      "category": "reliability",
      "reference": "Uptime Institute",
      "definition": "One spare component beyond the minimum required"
    },
    {
      "term": "2N redundancy",
      "category": "reliability",
      "reference": "Uptime Institute",
      "definition": "Fully duplicated, independent system capacity"
    },
    {
      "term": "Uninterruptible power supply (UPS)",
      "category": "power",
      "reference": "IEC",
      "definition": "Battery-backed system bridging power during outages"
    },
    {
      "term": "Raised floor",
      "category": "infrastructure",
      "reference": "TIA-942",
      "definition": "Elevated floor system for cabling and air distribution"
    },
    {
      "term": "Uptime tier",
      "category": "classification",
      "reference": "Uptime Institute",
      "definition": "Classification of facility reliability from I to IV"
    },
    {
      "term": "Water Usage Effectiveness (WUE)",
      "category": "efficiency metric",
      "reference": "The Green Grid",
      "definition": "Water consumed per unit of IT energy"
    },
    {
      "term": "Free cooling",
      "category": "cooling",
      "reference": "ASHRAE",
      "definition": "Using outside air or water to cool without mechanical refrigeration"
    }
  ],
  "sources": [
    {
      "url": "https://www.thegreengrid.org/",
      "name": "The Green Grid metrics library"
    },
    {
      "url": "https://uptimeinstitute.com/",
      "name": "Uptime Institute glossary"
    }
  ],
  "category": "glossary",
  "vertical": "construction-datacenters",
  "data_note": "All records are public-domain facts compiled from the cited sources as of the asOf date. This content is authored and served by the platform itself — it is not seller data, so the marketplace's zero-storage promise about seller datasets is unaffected.",
  "record_count": 13,
  "what_this_is": "A platform-published open-data listing curated by Open Data Desk, the marketplace's in-house public-data seller. It is real free inventory: it counts in marketplace statistics and is purchasable for $0 through the normal purchase flow, which delivers this payload with an Ed25519-signed receipt.",
  "record_schema": {
    "term": "Data center term",
    "category": "Type of concept",
    "reference": "Where the term is standardized",
    "definition": "Plain-language meaning"
  },
  "buyer_use_cases": [
    "Align design and operations teams on facility terminology",
    "Interpret efficiency and reliability metrics in a design brief",
    "Onboard new engineers to data center infrastructure concepts"
  ]
}