1001 Smart Cities

Permanent project revision

Energy-Autonomous Wastewater Plant Kaditz

Revision 2026-08-27-claims-and-sources · effective 2026-07-13

Superseded. A later revision exists: 2026-08-27-source-dating →

unreviewed

Created the first structured Evidence Passport with 9 claims and 3 source dossiers.

sha256:809917e14fbdbc523a755f4a29be79cf8b67f2fc92a46e8216e1ce820cc8b20c
All revisions → Current entity page →

Change set

  • add /evidencePassport — Added claim-level evidence mapping and source dossiers.
  • add /revisionHistory — Established a permanent, hash-addressed baseline revision.
9
of 9 claims mapped
3
source dossiers
1
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Claims, one by one

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-637c2736a87b58b2 quantitative
Dresden's main treatment plant at Kaditz serves about 700,000 connected inhabitants and is sized for 874,000 population equivalents
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The plant brochure gives the catchment of the Kaditz works as about 700,000 connected inhabitants and its design size as 874,000 population equivalents, a measure that also accounts for trade and industry.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
Claim 2 clm-8bfb845ea13f4119 descriptive
Sludge digested on site yields biogas that is burned in combined heat and power units
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The brochure describes the sludge being thickened, heated, digested and dewatered, with the resulting digester gas conditioned and burned in a CHP unit for electricity and heat; the utility's installations page describes the same.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
  2. Stadtentwässerung Dresden (operator)
Claim 3 clm-1c82db5e23df5a2b quantitative
a 275-metre channel carrying the cleaned water down to the Elbe drives a turbine whose generator feeds electricity back into the plant
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The brochure describes a 275-metre channel taking the cleaned water down to the bed of the Elbe, with the fall used to drive a turbine whose attached generator produces electricity used in the plant.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
Claim 4 clm-016e4c06721dda54 descriptive
photovoltaic modules sit on the roof of the stormwater overflow basin. The utility also draws heat from the ground and from the wastewater itself
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The WindNODE showcase page states photovoltaic modules are installed on the roof of the stormwater overflow basin at Kaditz and that the utility obtains energy from sewage sludge, ground and wastewater heat, hydropower and sun.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. WindNODE — Kläranlage Dresden-Kaditz showcase site
Claim 5 clm-f412b7e43febce9e quantitative
The sludge-gas CHP units produce about 18,000 MWh of electricity a year — the annual consumption of about 6,000 households — covering almost 85% of the total energy demand of wastewater and sludge treatment at Kaditz
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The brochure states that about 18,000 MWh of electricity is produced this way each year, corresponding to the annual electricity demand of 6,000 households, and that it covers almost 85 per cent of the total energy demand of wastewater and sludge treatment at the Dresden-Kaditz plant.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
Claim 6 clm-d5f156bcfeffda23 quantitative
An earlier account by the same utility put three CHP units at about 70% of its energy demand
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The WindNODE page states the utility currently converts the biogas from sewage sludge in three combined heat and power units, covering about 70 per cent of its energy demand.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. WindNODE — Kläranlage Dresden-Kaditz showcase site
Claim 7 clm-9ff61c50da43d69f descriptive
The rooftop photovoltaics and the outflow turbine add to this; neither carries a published rating or annual output
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
None of the three sources gives a capacity in kilowatts or an annual yield for either the photovoltaic array or the outflow turbine.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
  2. WindNODE — Kläranlage Dresden-Kaditz showcase site
  3. Stadtentwässerung Dresden (operator)
Claim 8 clm-f6b53de5d22a0cd8 quantitative
about 70% of the utility's energy demand in the earlier account, almost 85% of the energy demand of wastewater and sludge treatment at Kaditz in the 2023 brochure
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The two figures name different denominators: the utility's own energy demand in the WindNODE text, and the energy demand of wastewater and sludge treatment at the Kaditz plant in the brochure.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. WindNODE — Kläranlage Dresden-Kaditz showcase site
  2. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
Claim 9 clm-7df717ac48f14293 descriptive
the solar array and the outflow turbine have no published capacity or yield
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Neither the brochure nor the showcase page quantifies the photovoltaic array or the turbine.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023)
  2. WindNODE — Kläranlage Dresden-Kaditz showcase site

Source dossiers and revision state

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-08-27-claims-and-sources effective 2026-07-13 · created 2026-08-27

Awaiting operator and domain-expert review; publication of this revision implies neither.

Erratum on this revision's envelope. The snapshot, its hash and its permanent link are untouched.

  • createdAt previously read 2026-09-03T11:00:00Z. The batching script that produced this revision advanced createdAt into the future to satisfy the strictly-increasing order the validator requires per entity. The value never recorded a real event; the corrected value is the moment the revision provably existed in the repository. Corrected to 2026-08-27T04:04:32Z on 2026-08-27; evidence: first appears in commit dc30e21e77, committed 2026-08-27T04:04:32Z.
sha256:809917e14fbdbc523a755f4a29be79cf8b67f2fc92a46e8216e1ce820cc8b20c
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
9
of 9 claims mapped
3
source dossiers
1
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Stadtentwässerung Dresden
Actor types
utility
Funding model
utility
Funding description
Not recorded
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

Stadtentwässerung Dresden (operator) stadtentwaesserung-dresden.de · 2 linked claims

Open original source ↗

Stable source ID
src-c3ea85c137bb4fe3
Publisher
Name not classified · stadtentwaesserung-dresden.de
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-13
Dossier created
2026-09-03
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

A standing page about the utility's installations that carries no publication date.

Descriptive only — not page/paragraph exact
Claims linked
WindNODE — Kläranlage Dresden-Kaditz showcase site windnode.de · 5 linked claims

Open original source ↗

Stable source ID
src-d665ffecb9fdc6cc
Publisher
Name not classified · windnode.de
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-13
Dossier created
2026-09-03
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The page no longer responds; the passage cited here is from the Wayback snapshot of 26 May 2024.

Descriptive only — not page/paragraph exact
Claims linked
Stadtentwässerung Dresden — Kläranlage Dresden-Kaditz, plant brochure (operator, May 2023) stadtentwaesserung-dresden.de · 7 linked claims

Open original source ↗

Stable source ID
src-6b72e60fd9295e9f
Publisher
Name not classified · stadtentwaesserung-dresden.de
Type / language
pdf · language not classified
Published
2023-05-01
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-07-13
Dossier created
2026-09-03
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Official 2023 plant brochure.

Descriptive only — not page/paragraph exact
Claims linked
Known limits of this passport
  • 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.