{
  "format_version": "1",
  "case": "offshore-wind",
  "title": "Two offshore wind assumptions",
  "question": "What does GCAM assume for wind class c7 and, separately, for deep-water capital cost?",
  "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": [
    {
      "file": "gcam-power.json",
      "sha256": "7485cdd26030b7c15f0812c534223aca205cba855c96bd61c767668207b9cbc8",
      "captured_at": "2026-11-10T04:46:58.079479+00:00"
    }
  ],
  "answer": "Wind class c7 has a capacity factor of 0.4. The deep-water capital cost input is 1370 in 1975 dollars per GJ.",
  "limitations": [
    "Wind class and depth class are separate dimensions. Neither table locates a project or predicts its output."
  ],
  "steps": [
    {
      "tool": "power.wind_capacity_factors",
      "args": {
        "filters": {
          "wind_class": "c7"
        },
        "rows": 2
      },
      "envelope": {
        "data": {
          "table": "wind_capacity_factors",
          "columns": [
            "wind_class",
            "CF"
          ],
          "records": [
            {
              "row_number": 7,
              "values": {
                "wind_class": "c7",
                "CF": "0.4"
              },
              "evidence_ref": "evidence_01"
            }
          ],
          "file_url": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/energy/A20.wind_class_CFs.csv",
          "source_notes": [
            "File: A20.wind_class_CFs.csv",
            "Title: Capacity factor assumptions for global offshore wind classes",
            "Units: Unitless",
            "Source: Eurek et. al (2017); https://doi.org/10.1016/j.eneco.2016.11.015; raw data at https://catalog.data.gov/dataset/global-cfdda-based-onshore-and-offshore-wind-potential-supply-curves-by-country-class-and-",
            "Column types: cn",
            "----------"
          ],
          "filters": {
            "wind_class": "c7"
          },
          "offset": 0,
          "record_count": 1,
          "total_matches": 1,
          "table_rows": 9,
          "release": "GCAM v9.1"
        },
        "provenance": [
          {
            "id": "source_01",
            "source_id": "gcam-power",
            "steward": "Pacific Northwest National Laboratory",
            "system": "GCAM: Power technology",
            "dataset": "A20.wind_class_CFs.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 7",
            "locator": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/energy/A20.wind_class_CFs.csv",
            "retrieved_at": "2026-11-09T00:00:00Z",
            "effective_at": null,
            "transformations": [
              "parse_csv",
              "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-power"
          ],
          "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-power"
          }
        ],
        "_execution": {
          "server": "doe-mcp",
          "server_version": "0.1.0.dev0",
          "tool": "power.wind_capacity_factors",
          "tool_contract_version": "1",
          "envelope_version": "1",
          "adapters": {
            "osti_family": "1",
            "opendatasoft": "1",
            "json_document": "1",
            "curated": "1",
            "eia_v2": "1",
            "fueleconomy": "1",
            "text_feed": "1",
            "postgrest": "1",
            "federal_register": "1",
            "vips": "1",
            "daymet": "1",
            "essdive": "1",
            "esgf": "1",
            "sage": "1",
            "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": "power.offshore_depth_costs",
      "args": {
        "filters": {
          "depth_class": "deep"
        },
        "rows": 2
      },
      "envelope": {
        "data": {
          "table": "offshore_depth_costs",
          "columns": [
            "depth_class",
            "capital.overnight"
          ],
          "records": [
            {
              "row_number": 3,
              "values": {
                "depth_class": "deep",
                "capital.overnight": "1370"
              },
              "evidence_ref": "evidence_01"
            }
          ],
          "file_url": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/energy/A20.offshore_wind_depth_cap_cost.csv",
          "source_notes": [
            "File: A20.offshore_wind_depth_cap_cost.csv",
            "Title: Depth class and capital cost for offshore wind",
            "Units: 1975$ per GJ",
            "Comments: Depth class-specific cost assumptions",
            "Source: Based on data from the literature such as Cranmer (2017), Beiter (2016), EIA (2017), and Lazard (2016)",
            "Column types: ci",
            "----------"
          ],
          "filters": {
            "depth_class": "deep"
          },
          "offset": 0,
          "record_count": 1,
          "total_matches": 1,
          "table_rows": 3,
          "release": "GCAM v9.1"
        },
        "provenance": [
          {
            "id": "source_01",
            "source_id": "gcam-power",
            "steward": "Pacific Northwest National Laboratory",
            "system": "GCAM: Power technology",
            "dataset": "A20.offshore_wind_depth_cap_cost.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 3",
            "locator": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/energy/A20.offshore_wind_depth_cap_cost.csv",
            "retrieved_at": "2026-11-09T00:00:00Z",
            "effective_at": null,
            "transformations": [
              "parse_csv",
              "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-power"
          ],
          "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-power"
          }
        ],
        "_execution": {
          "server": "doe-mcp",
          "server_version": "0.1.0.dev0",
          "tool": "power.offshore_depth_costs",
          "tool_contract_version": "1",
          "envelope_version": "1",
          "adapters": {
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            "opendatasoft": "1",
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            "text_feed": "1",
            "postgrest": "1",
            "federal_register": "1",
            "vips": "1",
            "daymet": "1",
            "essdive": "1",
            "esgf": "1",
            "sage": "1",
            "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"
        }
      }
    }
  ]
}