{
  "id": "b300-gpu-hour-cost",
  "title": {
    "zh-hans": "B300 每 GPU 小时成本",
    "zh-hant": "B300 每 GPU 小時成本",
    "en": "B300 cost per GPU-hour"
  },
  "unit": "$ / GPU·h",
  "region": "us",
  "layer": "04",
  "frequency": "on-demand",
  "sources": {
    "own-estimate-2026-11": {
      "name": "Watts / FLOPs 估算，2026-11（假设见各行）",
      "tier": "D"
    },
    "jll-cbre-2026": {
      "name": "JLL、CBRE 托管租金报告（经新闻摘要）",
      "tier": "D"
    },
    "eia-steo-2026": {
      "name": "EIA STEO 美国工业电价",
      "url": "https://www.eia.gov/outlooks/steo/",
      "tier": "A"
    }
  },
  "methodology": [
    {
      "zh-hans": "按 100% 时间计；硬件投入 $6.5 万/GPU，5 年直线折旧；资金成本按 10% 年金法。",
      "zh-hant": "按 100% 時間計；硬體投入 $6.5 萬/GPU，5 年直線折舊；資金成本按 10% 年金法。",
      "en": "Assumes 100% uptime; $65k of hardware per GPU, straight-line over five years; financing at 10% (annuity)."
    },
    {
      "zh-hans": "全部来自公开报道和估算，均待核实；量级可信，单个数字不要直接引用。",
      "zh-hant": "全部來自公開報導和估算，均待核實；量級可信，單個數字不要直接引用。",
      "en": "All inputs come from public reporting and estimates and are unverified; trust the magnitude, not individual figures."
    }
  ],
  "changelog": [
    {
      "date": "2026-11-04",
      "note": {
        "zh-hans": "首次发布",
        "zh-hant": "首次發布",
        "en": "First issue"
      }
    }
  ],
  "rows": [
    {
      "date": "2026-11-04",
      "source": "own-estimate-2026-11",
      "status": "estimate",
      "item": {
        "zh-hans": "硬件折旧",
        "zh-hant": "硬體折舊",
        "en": "Hardware depreciation"
      },
      "low": 1.48,
      "high": 1.48,
      "basis": {
        "zh-hans": "$6.5 万，5 年直线",
        "zh-hant": "$6.5 萬，5 年直線",
        "en": "$65k, 5-year straight line"
      }
    },
    {
      "date": "2026-11-04",
      "source": "own-estimate-2026-11",
      "status": "estimate",
      "item": {
        "zh-hans": "资金成本",
        "zh-hant": "資金成本",
        "en": "Cost of capital"
      },
      "low": 0.47,
      "high": 0.47,
      "basis": {
        "zh-hans": "10% 年金法",
        "zh-hant": "10% 年金法",
        "en": "10% annuity"
      }
    },
    {
      "date": "2026-11-04",
      "source": "jll-cbre-2026",
      "status": "unverified",
      "item": {
        "zh-hans": "托管",
        "zh-hant": "託管",
        "en": "Colocation"
      },
      "low": 0.41,
      "high": 0.68,
      "basis": {
        "zh-hans": "$150–250/kW·月 × 2kW/GPU",
        "zh-hant": "$150–250/kW·月 × 2kW/GPU",
        "en": "$150–250/kW·month × 2 kW/GPU"
      }
    },
    {
      "date": "2026-11-04",
      "source": "eia-steo-2026",
      "status": "unverified",
      "item": {
        "zh-hans": "电",
        "zh-hant": "電",
        "en": "Power"
      },
      "low": 0.16,
      "high": 0.24,
      "basis": {
        "zh-hans": "9.0¢/kWh，PUE 1.25，平均负载 70%",
        "zh-hant": "9.0¢/kWh，PUE 1.25，平均負載 70%",
        "en": "9.0¢/kWh, PUE 1.25, 70% average load"
      }
    },
    {
      "date": "2026-11-04",
      "source": "own-estimate-2026-11",
      "status": "speculative",
      "item": {
        "zh-hans": "运维及其他",
        "zh-hant": "維運及其他",
        "en": "Operations & other"
      },
      "low": 0.1,
      "high": 0.2,
      "basis": {
        "zh-hans": "推测",
        "zh-hant": "推測",
        "en": "Speculative"
      }
    }
  ],
  "license": "Cite as Watts / FLOPs, wattsandflops.com"
}