1001 Smart Cities

Permanent project revision

+CityxChange

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

Superseded.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

unreviewed

Created the first structured Evidence Passport with 5 claims and 4 source dossiers.

sha256:e1e3d853de4944e4687901c465a3cc4c41b911fbff91e5751b656e0811a7b017
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.
5
of 5 claims mapped
4
source dossiers
2
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-2fbc5bab16f64d50 quantitative
Trondheim co-led an EU Horizon 2020 lighthouse consortium (with Limerick) to build Positive Energy Blocks — clusters of buildings that generate more energy over a year than they consume — and a local marketplace to trade the surplus and flexibility between them
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The CORDIS record gives the consortium, the Horizon 2020 grant of EUR 19,999,996 and the November 2018 to October 2023 window; the EU site page describes the Positive Energy Blocks and the local energy market.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Positive City ExChange — CORDIS fact sheet (EU)
  2. +CityxChange Trondheim — Smart Cities Marketplace (EU)
Claim 2 clm-97f46ef2e521259b quantitative
Two Positive Energy Blocks were established at Brattora and Sluppen, spanning about 71,000 m2 of commercial buildings with roughly 4 GWh of local rooftop-PV and heat-pump generation
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The EU site page gives 71,000 m² of commercial buildings and about 4 GWh of local PV and heat-pump production; the project's own post announces the two established blocks.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. +CityxChange Trondheim — Smart Cities Marketplace (EU)
  2. Trondheim has established two Positive Energy Blocks (operator)
Claim 3 clm-c2f649926465d9be quantitative
Both reached a net-positive annual balance: Brattora +230,857 kWh/yr (10% of its demand) and Sluppen +224,880 kWh/yr (5.2%)
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The project's post of 22 November 2022 gives both annual balances and both shares.
Caveat
An annual balance reported by the consortium itself; no independent evaluation is cited.

Sources carrying this claim

  1. Trondheim has established two Positive Energy Blocks (operator)
Claim 4 clm-3b8cb1e2643f3af3 quantitative
Aneos local energy and flexibility market linked 16 buildings and 29 assets and cut local peak load by about 6% (all figures consortium/operator-reported; no independent evaluation)
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The project's post of 11 October 2023 on the Aneo-operated market gives the 16 buildings, 29 assets and the roughly 6% local peak-load reduction.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Trondheims local energy and flexibility market (operator)
Claim 5 clm-1d9a81d760c24019 quantitative
the project ended in October 2023 with EUR 20 million spent
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The CORDIS record dates the project to 1 November 2018 – 31 October 2023 with EUR 19,999,996 of Horizon 2020 funding.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Positive City ExChange — CORDIS fact sheet (EU)

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 2026-08-27 · 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 2026-09-01T10:00:00Z. 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 2026-08-27T03:18:08Z on 2026-08-27; evidence: first appears in commit 52078886be, committed 2026-08-27T03:18:08Z.
sha256:e1e3d853de4944e4687901c465a3cc4c41b911fbff91e5751b656e0811a7b017
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
5
of 5 claims mapped
4
source dossiers
2
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
NTNU (project coordinator); Aneo (formerly Tronderenergi), local energy and flexibility market
Actor types
research, utility
Funding model
grant
Funding description
EU Horizon 2020 (Smart Cities & Communities lighthouse programme; ~EUR20m consortium-wide)
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

4 source dossiers

Positive City ExChange — CORDIS fact sheet (EU) cordis.europa.eu · 2 linked claims

Open original source ↗

Stable source ID
src-5afcb3629129391b
Publisher
Name not classified · cordis.europa.eu
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-01
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Official EU project record: 1 November 2018 to 31 October 2023, EUR 19,999,996 of Horizon 2020 funding, coordinated by NTNU. The page carries no publication date of its own — the only timestamp it serves is the day it was last regenerated.

Descriptive only — not page/paragraph exact
Claims linked
+CityxChange Trondheim — Smart Cities Marketplace (EU) smart-cities-marketplace.ec.europa.eu · 2 linked claims

Open original source ↗

Stable source ID
src-039cc3862c4463da
Publisher
Name not classified · smart-cities-marketplace.ec.europa.eu
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-01
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

EU project page: 71,000 m2 of commercial buildings, 4 GWh local PV/heat-pump production.

Descriptive only — not page/paragraph exact
Claims linked
Trondheim has established two Positive Energy Blocks (operator) cityxchange.eu · 2 linked claims

Open original source ↗

Stable source ID
src-89ae523278ae1282
Publisher
Name not classified · cityxchange.eu
Type / language
web-page · language not classified
Published
2022-11-22
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-01
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Positive annual balances: Brattora +230,857 kWh/yr, Sluppen +224,880 kWh/yr.

Descriptive only — not page/paragraph exact
Claims linked
Trondheims local energy and flexibility market (operator) cityxchange.eu · 1 linked claim

Open original source ↗

Stable source ID
src-e46c0cff34f965c0
Publisher
Name not classified · cityxchange.eu
Type / language
web-page · language not classified
Published
2023-10-11
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-09-01
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Aneo-operated market; ~6% local peak-load reduction, 16 buildings / 29 assets.

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.