{
 "schemaVersion": "1.0.0",
 "constitutionVersion": "1.0.0",
 "createdAt": "2026-08-12T00:00:00Z",
 "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.",
 "entity": {
  "type": "project",
  "id": "anchorage-smart-microgrid",
  "title": "Railbelt Battery Storage & Fire Island Wind Integration",
  "canonicalUrl": "https://1001smartcities.org/projects/anchorage-smart-microgrid/"
 },
 "currentRevisionId": "2026-08-27-source-dating",
 "revisions": [
  {
   "id": "2026-08-27-claims-and-sources",
   "createdAt": "2026-08-27T03:18:08Z",
   "effectiveAt": "2026-08-27",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 4 claims and 3 source dossiers.",
   "preparedBy": {
    "type": "automation",
    "label": "AI-assisted evidence preparation",
    "humanApproved": false
   },
   "review": {
    "status": "unreviewed",
    "by": null,
    "date": null,
    "note": "Awaiting operator and domain-expert review; publication of this revision implies neither."
   },
   "changes": [
    {
     "operation": "add",
     "path": "/evidencePassport",
     "summary": "Added claim-level evidence mapping and source dossiers."
    },
    {
     "operation": "add",
     "path": "/revisionHistory",
     "summary": "Established a permanent, hash-addressed baseline revision."
    }
   ],
   "snapshotHash": "sha256:716d15987c216d531f6a3bcf69095b2dee2d7ced7540a489d9cade95c801fb1e",
   "snapshot": {
    "asOf": "2026-08-27",
    "projectFingerprint": "sha256:ee8a79e4ed4f134a4744dcb6733e82e56b71da31673e500e12125f4a51a5e722",
    "assurance": {
     "status": "unreviewed",
     "scope": "evidence-passport-revision",
     "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.",
     "machineChecks": [
      "schema",
      "publication-diff-contract",
      "material-project-fingerprint",
      "claim-text-drift",
      "source-reference-resolution",
      "complete-source-dossier",
      "snapshot-hash"
     ]
    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "official",
     "timeline": {
      "started": 2024,
      "ended": null
     }
    },
    "governance": {
     "operator": "Chugach Electric Association (75%) and Matanuska Electric Association (25%)",
     "actorTypes": [
      "utility"
     ],
     "fundingModel": "utility",
     "fundingDescription": null,
     "cost": "$65M",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-1ed7dfc9bd92bc3d",
      "field": "snippet",
      "text": "Chugach Electric integrates the 11-turbine, 17.6MW Fire Island wind farm (running since 2012, about 3% of retail load) into Anchorage's Railbelt grid",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e6629c316d878a43"
      ],
      "supportNote": "The operator's Fire Island Wind page gives the 17.6 MW capacity and the roughly 3% share of retail load.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-337bceed308ebd4d",
      "field": "snippet",
      "text": "Since October 2024 it also stabilizes that grid with a 40MW/80MWh Tesla Megapack battery system, co-owned with Matanuska Electric ($65M total), that replaces spinning-reserve gas generators as backup",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d479bb44eb94ecc9",
       "src-4d4475e5baf8802f"
      ],
      "supportNote": "The operator's commissioning release of 7 October 2024 gives the 40 MW two-hour system, the $65 million cost and the co-ownership; independent trade coverage of 11 October 2024 confirms the 80 MWh Tesla Megapack installation.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-4538c81bc6cc0cfb",
      "field": "impact",
      "text": "Chugach projects the battery system will cut Railbelt-area natural gas consumption by about 5% a year by holding spinning reserve instead of idling gas turbines for it",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d479bb44eb94ecc9"
      ],
      "supportNote": "The commissioning release states the expected reduction in natural gas consumption and the mechanism — holding reserve in the battery rather than in part-loaded turbines.",
      "caveat": "A projection by the utility that bought the system; no measured saving has been published since commissioning.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-89d244208110658b",
      "field": "lesson",
      "text": "no measured figure has been published since commissioning in October 2024",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d479bb44eb94ecc9",
       "src-4d4475e5baf8802f"
      ],
      "supportNote": "Both the operator's release and the trade coverage describe the system at commissioning and state the expected saving; neither carries an after-the-fact measurement, and no later source is cited.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-e6629c316d878a43",
      "title": "Chugach Electric — Fire Island Wind (operator)",
      "url": "https://www.chugachelectric.com/about-us/regulatory-affairs/fire-island-wind",
      "publisher": {
       "name": null,
       "domain": "chugachelectric.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-1ed7dfc9bd92bc3d"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-27",
       "dossierCreatedAt": "2026-09-01",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Confirms Fire Island Wind's 17.6MW capacity and ~3% of retail load, current page.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d479bb44eb94ecc9",
      "title": "Chugach Electric — BESS officially commissioned (operator)",
      "url": "https://www.chugachelectric.com/your-cooperative/news-community/news-releases/2024/10/7/battery-energy-storage-system-officially-commissioned",
      "publisher": {
       "name": null,
       "domain": "chugachelectric.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-337bceed308ebd4d",
       "clm-4538c81bc6cc0cfb",
       "clm-89d244208110658b"
      ],
      "temporal": {
       "publishedAt": "2024-10-07",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-27",
       "dossierCreatedAt": "2026-09-01",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official press release: 40MW/2-hour BESS, $65M, 75/25 Chugach/MEA ownership, spinning-reserve replacement, projected 5% annual gas savings.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-4d4475e5baf8802f",
      "title": "Energy-Storage.news — 80MWh Tesla Megapack BESS (trade)",
      "url": "https://www.energy-storage.news/alaskas-chugach-electric-commissions-80mwh-tesla-megapack-bess/",
      "publisher": {
       "name": null,
       "domain": "energy-storage.news",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-337bceed308ebd4d",
       "clm-89d244208110658b"
      ],
      "temporal": {
       "publishedAt": "2024-10-11",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-27",
       "dossierCreatedAt": "2026-09-01",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent trade coverage of the October 2024 commissioning.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 4,
     "claimsMapped": 4,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 2,
     "sourcesWithArchive": 0,
     "sourcesWithExactLocator": 0,
     "sourcesWithContentHash": 0
    },
    "limits": [
     "Publisher names and source languages have not yet been classified; domains are recorded without guessing.",
     "Existing source notes are descriptive locators, not page- or paragraph-exact citations.",
     "A missing archive, publication date or content hash is shown as null rather than inferred.",
     "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim."
    ]
   }
  },
  {
   "id": "2026-08-27-source-dating",
   "createdAt": "2026-08-27T13:37:00Z",
   "effectiveAt": "2026-08-27",
   "changeType": "correction",
   "summary": "Every source on this entry now carries a date key: a publication date where the publisher states one, otherwise an explicit null with the reason on the record.",
   "preparedBy": {
    "type": "automation",
    "label": "AI-assisted evidence preparation",
    "humanApproved": false
   },
   "review": {
    "status": "unreviewed",
    "by": null,
    "date": null,
    "note": "Awaiting operator and domain-expert review; publication of this revision implies neither."
   },
   "changes": [
    {
     "operation": "replace",
     "path": "/snapshot/projectFingerprint",
     "summary": "Updated projectFingerprint to the current sourced project record."
    },
    {
     "operation": "replace",
     "path": "/snapshot/sources",
     "summary": "Updated sources to the current sourced project record."
    }
   ],
   "snapshotHash": "sha256:82769c1ff761dbc0fbcd888f53c4dc7203dc71a047ed393338f030c3fcd97b19",
   "snapshot": {
    "asOf": "2026-08-27",
    "projectFingerprint": "sha256:2a880f1ce5a0f12d6e9ddcc5a676b6e6c1f764461999100ff4cb2460519316e1",
    "assurance": {
     "status": "unreviewed",
     "scope": "evidence-passport-revision",
     "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.",
     "machineChecks": [
      "schema",
      "publication-diff-contract",
      "material-project-fingerprint",
      "claim-text-drift",
      "source-reference-resolution",
      "complete-source-dossier",
      "snapshot-hash"
     ]
    },
    "projectState": {
     "status": "live",
     "outcome": "ongoing",
     "evidenceGrade": "official",
     "timeline": {
      "started": 2024,
      "ended": null
     }
    },
    "governance": {
     "operator": "Chugach Electric Association (75%) and Matanuska Electric Association (25%)",
     "actorTypes": [
      "utility"
     ],
     "fundingModel": "utility",
     "fundingDescription": null,
     "cost": "$65M",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-1ed7dfc9bd92bc3d",
      "field": "snippet",
      "text": "Chugach Electric integrates the 11-turbine, 17.6MW Fire Island wind farm (running since 2012, about 3% of retail load) into Anchorage's Railbelt grid",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-e6629c316d878a43"
      ],
      "supportNote": "The operator's Fire Island Wind page gives the 17.6 MW capacity and the roughly 3% share of retail load.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-337bceed308ebd4d",
      "field": "snippet",
      "text": "Since October 2024 it also stabilizes that grid with a 40MW/80MWh Tesla Megapack battery system, co-owned with Matanuska Electric ($65M total), that replaces spinning-reserve gas generators as backup",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d479bb44eb94ecc9",
       "src-4d4475e5baf8802f"
      ],
      "supportNote": "The operator's commissioning release of 7 October 2024 gives the 40 MW two-hour system, the $65 million cost and the co-ownership; independent trade coverage of 11 October 2024 confirms the 80 MWh Tesla Megapack installation.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-4538c81bc6cc0cfb",
      "field": "impact",
      "text": "Chugach projects the battery system will cut Railbelt-area natural gas consumption by about 5% a year by holding spinning reserve instead of idling gas turbines for it",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d479bb44eb94ecc9"
      ],
      "supportNote": "The commissioning release states the expected reduction in natural gas consumption and the mechanism — holding reserve in the battery rather than in part-loaded turbines.",
      "caveat": "A projection by the utility that bought the system; no measured saving has been published since commissioning.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-89d244208110658b",
      "field": "lesson",
      "text": "no measured figure has been published since commissioning in October 2024",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-d479bb44eb94ecc9",
       "src-4d4475e5baf8802f"
      ],
      "supportNote": "Both the operator's release and the trade coverage describe the system at commissioning and state the expected saving; neither carries an after-the-fact measurement, and no later source is cited.",
      "caveat": null,
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-e6629c316d878a43",
      "title": "Chugach Electric — Fire Island Wind (operator)",
      "url": "https://www.chugachelectric.com/about-us/regulatory-affairs/fire-island-wind",
      "publisher": {
       "name": null,
       "domain": "chugachelectric.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-1ed7dfc9bd92bc3d"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-27",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Confirms Fire Island Wind's 17.6MW capacity and ~3% of retail load, current page. The page states no publication date.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-d479bb44eb94ecc9",
      "title": "Chugach Electric — BESS officially commissioned (operator)",
      "url": "https://www.chugachelectric.com/your-cooperative/news-community/news-releases/2024/10/7/battery-energy-storage-system-officially-commissioned",
      "publisher": {
       "name": null,
       "domain": "chugachelectric.com",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-337bceed308ebd4d",
       "clm-4538c81bc6cc0cfb",
       "clm-89d244208110658b"
      ],
      "temporal": {
       "publishedAt": "2024-10-07",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-27",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official press release: 40MW/2-hour BESS, $65M, 75/25 Chugach/MEA ownership, spinning-reserve replacement, projected 5% annual gas savings.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-4d4475e5baf8802f",
      "title": "Energy-Storage.news — 80MWh Tesla Megapack BESS (trade)",
      "url": "https://www.energy-storage.news/alaskas-chugach-electric-commissions-80mwh-tesla-megapack-bess/",
      "publisher": {
       "name": null,
       "domain": "energy-storage.news",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-337bceed308ebd4d",
       "clm-89d244208110658b"
      ],
      "temporal": {
       "publishedAt": "2024-10-11",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-08-27",
       "dossierCreatedAt": "2026-08-27",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Independent trade coverage of the October 2024 commissioning.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 4,
     "claimsMapped": 4,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 2,
     "sourcesWithArchive": 0,
     "sourcesWithExactLocator": 0,
     "sourcesWithContentHash": 0
    },
    "limits": [
     "Publisher names and source languages have not yet been classified; domains are recorded without guessing.",
     "Existing source notes are descriptive locators, not page- or paragraph-exact citations.",
     "A missing archive, publication date or content hash is shown as null rather than inferred.",
     "The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim."
    ]
   }
  }
 ]
}