{
 "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": "vienna-citizen-energy",
  "title": "Vienna's Citizens' Solar & Wind Power Plants",
  "canonicalUrl": "https://1001smartcities.org/projects/vienna-citizen-energy/"
 },
 "currentRevisionId": "2026-08-23-evidence-baseline-c9",
 "revisions": [
  {
   "id": "2026-08-23-evidence-baseline-c9",
   "createdAt": "2026-08-23T11:00:00Z",
   "effectiveAt": "2026-07-22",
   "changeType": "baseline",
   "summary": "Created the first structured Evidence Passport with 7 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": "sha256:8aa38e762ec9b634fe757c038974d2625e9278b3d93c141e39cf74b5e5c23cf7",
   "snapshot": {
    "asOf": "2026-07-22",
    "projectFingerprint": "sha256:21ad29fc296deeb72e441036c17ef8d162add3c3ea750df16ebf640c9760d894",
    "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": 2012,
      "ended": null
     }
    },
    "governance": {
     "operator": "Wien Energie",
     "actorTypes": [
      "utility"
     ],
     "fundingModel": "utility",
     "fundingDescription": "Citizen crowd-investment via Wien Energie 'Sonnenpakete' (€250 each, max. 5 per person)",
     "cost": "€40m+ cumulative citizen investment since 2012",
     "ownership": null,
     "decisionRights": null,
     "exitConditions": null
    },
    "claims": [
     {
      "id": "clm-2df71f382e40fddc",
      "field": "snippet",
      "text": "Since Wien Energie's first Bürgerkraftwerk opened in Donaustadt in 2012",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-10e66b731937b54c",
       "src-8af9e56f489cb559"
      ],
      "supportNote": "The city's own platform dates it to the day: \"Vienna's first citizens' power plant opened on 4 May 2012 on the premises of Donaustadt power station.\" Wien Energie's release says the same in its own words: \"Im Jahr 2012 ging in der Donaustadt das erste Bürger*innen-Solarkraftwerk in Betrieb.\"",
      "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-869029e155e32fdb",
      "field": "snippet",
      "text": "the program has grown to more than 30 citizen solar and wind plants",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-10e66b731937b54c"
      ],
      "supportNote": "The city's platform states the count and the two technologies together: \"Over 30 solar and wind plants are already supplying the city with carbon-free energy.\"",
      "caveat": "The operator's April 2024 release counts the thirtieth solar plant specifically; the combined figure of more than thirty covers solar and wind together.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-504c1d3dc2bbde8d",
      "field": "snippet",
      "text": "Residents buy up to five €250 'Sonnenpakete'",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8af9e56f489cb559"
      ],
      "supportNote": "The release gives both numbers: \"Ein Sonnenpaket kostet 250 Euro\", and buyers may \"bis zu fünf Sonnenpakete erwerben\".",
      "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-75cf62100e0935d1",
      "field": "snippet",
      "text": "a guaranteed minimum of €52.80 a year per package over a five-year term",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8af9e56f489cb559"
      ],
      "supportNote": "The operator states the guarantee in euros, not as a rate: \"Wien Energie garantiert einen jährlichen Mindestertrag von 52,80 Euro pro Sonnenpaket innerhalb der fünfjährigen Laufzeit.\"",
      "caveat": "The annual payment returns the capital as well as a yield: five payments of €52.80 come to €264 against the €250 paid in. No listed source expresses that as a percentage.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-d54f93966954caad",
      "field": "snippet",
      "text": "paid as vouchers against their electricity bill",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-10e66b731937b54c",
       "src-45c9df7357997a99"
      ],
      "supportNote": "The city's platform describes the payout form and its term: \"In return for their investment the co-owners of the plants receive an annual remuneration in the form of vouchers from Wien Energie over a period of five years.\" Wien Energie's product page says the vouchers are redeemed as a credit on a Wien Energie electricity bill.",
      "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-80e6de5c4fe8bce6",
      "field": "snippet",
      "text": "rising with the sunshine the panels catch",
      "statementKind": "descriptive",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8af9e56f489cb559"
      ],
      "supportNote": "The release makes the variable part explicit: a Sonnenpaket \"beinhaltet zusätzlich eine variable Mehrvergütung. Je nach Höhe der jährlicher Sonnenstunden, die auf die Photovoltaikmodule des Bürger*innen-Solarkraftwerkes strahlen, kann diese Rendite weiter steigen.\"",
      "caveat": "The variable top-up can only raise the payout, never lower it: the €52.80 is a floor the operator guarantees.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     },
     {
      "id": "clm-47d7bab6eb07a672",
      "field": "snippet",
      "text": "More than 12,200 people have invested over €40 million to date.",
      "statementKind": "quantitative",
      "textMode": "verbatim-from-project-record",
      "mappingStatus": "mapped",
      "sourceRefs": [
       "src-8af9e56f489cb559",
       "src-45c9df7357997a99"
      ],
      "supportNote": "The release states both: \"12.200 Wiener*innen haben sich … an der regionalen Ökostromproduktion beteiligt\" and \"über 40 Millionen Euro klimafreundlich investiert\". Wien Energie's live product page still gives \"Rund 12.200 Wiener*innen\".",
      "caveat": "Both figures date from April 2024, and the operator's own page still carries the same participant count today, so the number has not moved rather than being freshly counted.",
      "interpretation": {
       "added": false,
       "interpolation": false,
       "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion."
      }
     }
    ],
    "sources": [
     {
      "id": "src-10e66b731937b54c",
      "title": "Smart City Wien (authority)",
      "url": "https://smartcity.wien.gv.at/en/citizens-power-plants/",
      "publisher": {
       "name": null,
       "domain": "smartcity.wien.gv.at",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-2df71f382e40fddc",
       "clm-869029e155e32fdb",
       "clm-d54f93966954caad"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-22",
       "dossierCreatedAt": "2026-08-23",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "Official platform profiling the city's community energy plans.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-45c9df7357997a99",
      "title": "Wien Energie (operator)",
      "url": "https://www.wienenergie.at/privat/produkte/buergerinnenkraftwerke/",
      "publisher": {
       "name": null,
       "domain": "wienenergie.at",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-d54f93966954caad",
       "clm-47d7bab6eb07a672"
      ],
      "temporal": {
       "publishedAt": null,
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-22",
       "dossierCreatedAt": "2026-08-23",
       "retrievedAt": null,
       "status": "record-date-only"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The operator's live product page: participant count and the terms on which the vouchers are redeemed against a Wien Energie electricity bill. It states neither the number of plants nor the package price.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     },
     {
      "id": "src-8af9e56f489cb559",
      "title": "Wien Energie press release (operator, 2024-04-14)",
      "url": "https://www.wienenergie.at/pressrelease/erste-verkaufsphase-fuer-30-buergerinnen-solarkraftwerk-jeder-kann-teil-der-energiewende-werden/",
      "publisher": {
       "name": null,
       "domain": "wienenergie.at",
       "classification": "not-classified"
      },
      "sourceType": "web-page",
      "language": "und",
      "role": "claim-evidence",
      "claimRefs": [
       "clm-2df71f382e40fddc",
       "clm-504c1d3dc2bbde8d",
       "clm-75cf62100e0935d1",
       "clm-80e6de5c4fe8bce6",
       "clm-47d7bab6eb07a672"
      ],
      "temporal": {
       "publishedAt": "2024-04-14",
       "updatedAt": null,
       "sourceCheckedAt": null,
       "recordLastVerifiedAt": "2026-07-22",
       "dossierCreatedAt": "2026-08-23",
       "retrievedAt": null,
       "status": "publication-and-record-dates-recorded"
      },
      "locator": {
       "type": "descriptive-source-note",
       "value": "The operator's announcement of the thirtieth citizens' solar plant, and the sentence-level source for the €250 package, the five-package limit, the guaranteed €52.80 a year across a five-year term, the 12,200 participants and the €40 million invested.",
       "exact": false
      },
      "preservation": {
       "archiveUrl": null,
       "archivedAt": null,
       "contentHash": null,
       "status": "not-captured"
      }
     }
    ],
    "coverage": {
     "claimsTotal": 7,
     "claimsMapped": 7,
     "sourcesTotal": 3,
     "sourcesUsedByClaims": 3,
     "sourcesWithPublicationDate": 1,
     "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."
    ]
   }
  }
 ]
}