{
  "format_version": "1",
  "case": "germany-cooling",
  "title": "Power plant cooling in Western Europe",
  "question": "Which fresh-water cooling share applies to coal in Germany's legacy model region?",
  "mode": "recorded",
  "simulation": false,
  "registry_revision": "2026-11-09",
  "generated_at": null,
  "replay_clock": "2026-11-09T00:00:00Z",
  "timestamp_note": "Envelope retrieval timestamps use a fixed replay clock, not publisher retrieval times. Actual fixture capture times appear in the manifest; null means unrecorded.",
  "fixtures": [
    {
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      "sha256": "e51120caad276d93a52d9dbf50ea2faa5c298c9ac88f17c3e5f1869be685bb78",
      "captured_at": "2026-11-10T04:46:58.414403+00:00"
    },
    {
      "file": "gcam-water.json",
      "sha256": "ecd273d3b6eeea1cd569b2b70ef51ca0ef203bb2233d4c32f4eebab9c2947869",
      "captured_at": "2026-11-10T04:46:57.016956+00:00"
    }
  ],
  "answer": "The model's 2020 share for recirculating freshwater cooling in Western European coal plants is 0.64.",
  "limitations": [
    "The table covers Western Europe as a group. It cannot establish the share at German plants."
  ],
  "steps": [
    {
      "tool": "economy.country_regions",
      "args": {
        "filters": {
          "iso": "deu"
        },
        "rows": 2
      },
      "envelope": {
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          "columns": [
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            "country_name",
            "region_GCAM3",
            "GCAM_region_ID"
          ],
          "records": [
            {
              "row_number": 58,
              "values": {
                "iso": "deu",
                "country_name": "Germany",
                "region_GCAM3": "Western Europe",
                "GCAM_region_ID": "13"
              },
              "evidence_ref": "evidence_01"
            }
          ],
          "file_url": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/common/iso_GCAM_regID.csv",
          "source_notes": [
            "File: iso_GCAM_regID.csv",
            "Title: ISO to GCAM region mapping",
            "Units: NA",
            "Description: Maps iso codes to GCAM regions (including composites as necessary)",
            "Column types: ccci",
            "----------"
          ],
          "filters": {
            "iso": "deu"
          },
          "offset": 0,
          "record_count": 1,
          "total_matches": 1,
          "table_rows": 248,
          "release": "GCAM v9.1"
        },
        "provenance": [
          {
            "id": "source_01",
            "source_id": "gcam-economy",
            "steward": "Pacific Northwest National Laboratory",
            "system": "GCAM: Regional economics",
            "dataset": "iso_GCAM_regID.csv",
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            "authority_level": "primary",
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            "retrieved_at": "2026-11-09T00:00:00Z",
            "cache_age_seconds": 0,
            "citation": {
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              "recommended": "Joint Global Change Research Institute, Pacific Northwest National Laboratory. GCAM v9.1, gcamdata. Cite the specific input file and retain its source notes.",
              "required": true
            }
          }
        ],
        "evidence": [
          {
            "id": "evidence_01",
            "source_ref": "source_01",
            "record_id": "data row 58",
            "locator": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/common/iso_GCAM_regID.csv",
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            "effective_at": null,
            "transformations": [
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              "empty_cell_to_null"
            ],
            "payload_hash": null,
            "raw_recovery": "available"
          }
        ],
        "coverage": {
          "registry": "covered",
          "execution": "complete",
          "pagination": "complete",
          "source_claim": "complete",
          "result": "hit",
          "sources_searched": [
            "gcam-economy"
          ],
          "known_limitations": [
            "Rows are model inputs, not scenario outputs or measurements of current conditions.",
            "GCAM3 region labels and numeric GCAM region IDs use different groupings."
          ]
        },
        "warnings": [
          {
            "code": "citation_required",
            "message": "This publisher requires citation as a condition of use. Cite: Joint Global Change Research Institute, Pacific Northwest National Laboratory. GCAM v9.1, gcamdata. Cite the specific input file and retain its source notes.",
            "source_id": "gcam-economy"
          }
        ],
        "_execution": {
          "server": "doe-mcp",
          "server_version": "0.1.0.dev0",
          "tool": "economy.country_regions",
          "tool_contract_version": "1",
          "envelope_version": "1",
          "adapters": {
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            "optimade": "1",
            "basis_sets": "1",
            "facility_status": "1",
            "gcam_csv": "1",
            "nmdc": "1",
            "none": "1",
            "self_registry": "1"
          },
          "registry_revision": "2026-11-09",
          "request_id": "recorded-workflow"
        }
      }
    },
    {
      "tool": "water.cooling_shares",
      "args": {
        "filters": {
          "plant_type": "coal",
          "cooling_system": "recirculating",
          "water_type": "fresh",
          "region_GCAM3": "Western Europe"
        },
        "rows": 2
      },
      "envelope": {
        "data": {
          "table": "cooling_shares",
          "columns": [
            "region_GCAM3",
            "plant_type",
            "cooling_system",
            "water_type",
            "1971",
            "2005",
            "2010",
            "2015",
            "2017",
            "2020",
            "2100"
          ],
          "records": [
            {
              "row_number": 57,
              "values": {
                "region_GCAM3": "Western Europe",
                "plant_type": "coal",
                "cooling_system": "recirculating",
                "water_type": "fresh",
                "1971": "0.695636538",
                "2005": "0.695636538",
                "2010": "0.695636538",
                "2015": "0.695636538",
                "2017": "0.695636538",
                "2020": "0.64",
                "2100": "0.64"
              },
              "evidence_ref": "evidence_01"
            }
          ],
          "file_url": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/water/A23.CoolingSystemShares_RG3.csv",
          "source_notes": [
            "File: A23.CoolingSystemShares_RG3.csv",
            "Title: Cooling system shares for GCAM3 regions",
            "Units: Unitless",
            "Source: Various sources. USA values are from UCS data. WEUR future are from Schakel inventory.",
            "Column types: ccccnnnnnnn",
            "----------"
          ],
          "filters": {
            "plant_type": "coal",
            "cooling_system": "recirculating",
            "water_type": "fresh",
            "region_GCAM3": "Western Europe"
          },
          "offset": 0,
          "record_count": 1,
          "total_matches": 1,
          "table_rows": 378,
          "release": "GCAM v9.1"
        },
        "provenance": [
          {
            "id": "source_01",
            "source_id": "gcam-water",
            "steward": "Pacific Northwest National Laboratory",
            "system": "GCAM: Water use",
            "dataset": "A23.CoolingSystemShares_RG3.csv",
            "dataset_version": "GCAM v9.1",
            "authority_level": "primary",
            "access_path": "live",
            "source_updated_at": null,
            "retrieved_at": "2026-11-09T00:00:00Z",
            "cache_age_seconds": 0,
            "citation": {
              "doi": null,
              "recommended": "Joint Global Change Research Institute, Pacific Northwest National Laboratory. GCAM v9.1, gcamdata. Cite the specific input file and retain its source notes.",
              "required": true
            }
          }
        ],
        "evidence": [
          {
            "id": "evidence_01",
            "source_ref": "source_01",
            "record_id": "data row 57",
            "locator": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/water/A23.CoolingSystemShares_RG3.csv",
            "retrieved_at": "2026-11-09T00:00:00Z",
            "effective_at": null,
            "transformations": [
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              "empty_cell_to_null"
            ],
            "payload_hash": null,
            "raw_recovery": "available"
          }
        ],
        "coverage": {
          "registry": "covered",
          "execution": "complete",
          "pagination": "complete",
          "source_claim": "complete",
          "result": "hit",
          "sources_searched": [
            "gcam-water"
          ],
          "known_limitations": [
            "Rows are model inputs, not scenario outputs or measurements of current conditions.",
            "GCAM3 region labels and numeric GCAM region IDs use different groupings."
          ]
        },
        "warnings": [
          {
            "code": "citation_required",
            "message": "This publisher requires citation as a condition of use. Cite: Joint Global Change Research Institute, Pacific Northwest National Laboratory. GCAM v9.1, gcamdata. Cite the specific input file and retain its source notes.",
            "source_id": "gcam-water"
          }
        ],
        "_execution": {
          "server": "doe-mcp",
          "server_version": "0.1.0.dev0",
          "tool": "water.cooling_shares",
          "tool_contract_version": "1",
          "envelope_version": "1",
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          "registry_revision": "2026-11-09",
          "request_id": "recorded-workflow"
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      }
    }
  ]
}