{
  "format_version": "1",
  "case": "desalination-inputs",
  "title": "The energy cost of reverse osmosis",
  "question": "Which electricity input and non-energy cost does GCAM use for reverse osmosis?",
  "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-water.json",
      "sha256": "ecd273d3b6eeea1cd569b2b70ef51ca0ef203bb2233d4c32f4eebab9c2947869",
      "captured_at": "2026-11-10T04:46:57.016956+00:00"
    }
  ],
  "answer": "For 2100 the reverse osmosis inputs are 0.0063 GJ of electricity and 0.38 in 1975 US dollars per cubic metre.",
  "limitations": [
    "These inputs have different units. Converting them to a total cost requires an electricity price."
  ],
  "steps": [
    {
      "tool": "water.desalination_inputs",
      "args": {
        "filters": {
          "technology": "reverse osmosis",
          "minicam.energy.input": "elect_td_ind"
        },
        "rows": 2
      },
      "envelope": {
        "data": {
          "table": "desalination_inputs",
          "columns": [
            "supplysector",
            "subsector",
            "technology",
            "minicam.energy.input",
            "1971",
            "2015",
            "2017",
            "2100"
          ],
          "records": [
            {
              "row_number": 1,
              "values": {
                "supplysector": "desalinated water",
                "subsector": "electricity",
                "technology": "reverse osmosis",
                "minicam.energy.input": "elect_td_ind",
                "1971": "0.0432",
                "2015": "0.0099",
                "2017": "0.0099",
                "2100": "0.0063"
              },
              "evidence_ref": "evidence_01"
            }
          ],
          "file_url": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/water/A71.globaltech_coef.csv",
          "source_notes": [
            "File: A71.globaltech_coef.csv",
            "Title: Desalination energy-for-water coefficients",
            "Units: GJ of energy per cubic meter of water (GJ/m3)",
            "Source: Liu et al. 2016. DOI: 10.1021/acs.est.6b01065",
            "Column types: ccccnnnn"
          ],
          "filters": {
            "technology": "reverse osmosis",
            "minicam.energy.input": "elect_td_ind"
          },
          "offset": 0,
          "record_count": 1,
          "total_matches": 1,
          "table_rows": 6,
          "release": "GCAM v9.1"
        },
        "provenance": [
          {
            "id": "source_01",
            "source_id": "gcam-water",
            "steward": "Pacific Northwest National Laboratory",
            "system": "GCAM: Water use",
            "dataset": "A71.globaltech_coef.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 1",
            "locator": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/water/A71.globaltech_coef.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-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.desalination_inputs",
          "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": "water.desalination_costs",
      "args": {
        "filters": {
          "technology": "reverse osmosis"
        },
        "rows": 2
      },
      "envelope": {
        "data": {
          "table": "desalination_costs",
          "columns": [
            "supplysector",
            "subsector",
            "technology",
            "minicam.non.energy.input",
            "1971",
            "2100"
          ],
          "records": [
            {
              "row_number": 1,
              "values": {
                "supplysector": "desalinated water",
                "subsector": "electricity",
                "technology": "reverse osmosis",
                "minicam.non.energy.input": "non-energy",
                "1971": "0.38",
                "2100": "0.38"
              },
              "evidence_ref": "evidence_01"
            }
          ],
          "file_url": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/water/A71.globaltech_cost.csv",
          "source_notes": [
            "File: A71.globaltech_cost.csv",
            "Title: Desalination non-energy costs",
            "Units: 1975$ per cubic meter of desalinated water (1975$/m3)",
            "Source: RO tech cost estimated as total costs (about $2400/acre-foot, in 2016 dollars) minus fuel costs (36%), from CA Dept of Water Resources 2016. https://water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/California-Water-Plan/Docs/RMS/2016/09_Desalination_July2016.pdf",
            "Column types: ccccnn"
          ],
          "filters": {
            "technology": "reverse osmosis"
          },
          "offset": 0,
          "record_count": 1,
          "total_matches": 1,
          "table_rows": 3,
          "release": "GCAM v9.1"
        },
        "provenance": [
          {
            "id": "source_01",
            "source_id": "gcam-water",
            "steward": "Pacific Northwest National Laboratory",
            "system": "GCAM: Water use",
            "dataset": "A71.globaltech_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 1",
            "locator": "https://raw.githubusercontent.com/JGCRI/gcam-core/11e128fb7ce3e14e9c4daf3903ba73123046a7aa/input/gcamdata/inst/extdata/water/A71.globaltech_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-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.desalination_costs",
          "tool_contract_version": "1",
          "envelope_version": "1",
          "adapters": {
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            "sage": "1",
            "optimade": "1",
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            "facility_status": "1",
            "gcam_csv": "1",
            "nmdc": "1",
            "none": "1",
            "self_registry": "1"
          },
          "registry_revision": "2026-11-09",
          "request_id": "recorded-workflow"
        }
      }
    }
  ]
}