1001 Smart Cities

Permanent project revision

EPB Gig City — Fiber-Optic Smart Grid & Community Broadband

Revision 2026-08-27-p1-quality-uplift · effective 2026-08-27

Current revision. This is the snapshot used by the live entity page.

unreviewed

Replaced the single legacy claim with a complete claim array covering every material assertion in snippet, impact and lesson; added a sourced lesson, dated the sources and replaced dead ones.

sha256:f94e5edcf652fc6de21a7568897a130b47da5a2d710d3f5193689750b5b341fa
All revisions → Current entity page →

Change set

  • replace /snapshot/projectFingerprint — Updated projectFingerprint to the current sourced project record.
  • replace /snapshot/asOf — Updated asOf to the current sourced project record.
  • replace /snapshot/claims — Updated claims to the current sourced project record.
  • replace /snapshot/sources — Updated sources to the current sourced project record.
5
of 5 claims mapped
3
source dossiers
3
publication dates recorded
1
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-909379fe98f96ec4 quantitative
In February 2008 EPB, Chattanooga's municipal utility, approved a citywide smart grid built on a 100% fiber-optic backbone; the roughly 9,000-mile network was completed in September 2010 and now runs about 1,200 automated switches that reroute power around faults, helping cut annual outage minutes by roughly half
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The independent write-up of the 2024 University of Tennessee at Chattanooga study covers the grid's build and its automated switching; the local retrospective covers the same history.
Caveat
Neither host serves its article text to automated retrieval — one returns a stub, the other a paywall page — so no locating passage was read for the build figures.

Sources carrying this claim

  1. Chattanooga's Municipal Fiber Network Has Delivered $5.3 Billion in Community Benefits (Community Networks / ILSR, independent)
  2. Chattanooga 250: EPB harnessed light to become city's strongest selling point (Chattanooga Times Free Press, press, 2026)
Claim 2 clm-a575168584027a45 quantitative
The same fiber made Chattanooga the first US city with community-wide 1 Gbps internet (2010), followed by 10-gig in 2015 and 25-gig in 2022
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Utility press release: America's first comprehensively available Gig-speed internet service (2010), the first 10-Gig internet service (2015), and the nation's first community-wide 25 gigabits per second service.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. EPB Launches America's First Community-wide 25 Gig Internet Service (EPB, authority)
Claim 3 clm-eb96f60877381847 quantitative
A 2024 University of Tennessee at Chattanooga study valued the combined fiber and smart-grid systems at $5.3 billion in net community benefit for Hamilton County since 2011
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Independent write-up of the study by Bento Lobo of the University of Tennessee at Chattanooga.
Caveat
The host serves only a stub to automated retrieval, so no locating passage was read from it.

Sources carrying this claim

  1. Chattanooga's Municipal Fiber Network Has Delivered $5.3 Billion in Community Benefits (Community Networks / ILSR, independent)
Claim 4 clm-3576feb5ec6b50ed quantitative
2024 UTC study: $5.3B net community benefit for Hamilton County since 2011; smart grid has prevented 417M+ minutes of power outages, saving ratepayers ~$631M
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
Independent write-up of the 2024 study, carrying all three figures.
Caveat
The host serves only a stub to automated retrieval, so no locating passage was read from it.

Sources carrying this claim

  1. Chattanooga's Municipal Fiber Network Has Delivered $5.3 Billion in Community Benefits (Community Networks / ILSR, independent)
Claim 5 clm-4038f0e3b445532c quantitative
EPB laid fibre to automate its power grid — about 1,200 switches that reroute around a fault — and the gigabit service the city became famous for rode on cable the utility needed anyway
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this passport
What the mapping says
The independent write-up covers the grid purpose and the automated switching; the utility's own release sets out the internet milestones delivered over the same fibre.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Chattanooga's Municipal Fiber Network Has Delivered $5.3 Billion in Community Benefits (Community Networks / ILSR, independent)
  2. EPB Launches America's First Community-wide 25 Gig Internet Service (EPB, authority)

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-p1-quality-uplift effective 2026-08-27 · created 2026-08-26

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 2026-08-27T11:00:00Z. 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 2026-08-26T22:14:17Z on 2026-08-27; evidence: first appears in commit 788e6cc022, committed 2026-08-26T22:14:17Z.
sha256:f94e5edcf652fc6de21a7568897a130b47da5a2d710d3f5193689750b5b341fa
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
5
of 5 claims mapped
3
source dossiers
3
publication dates recorded
1
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
EPB (Electric Power Board of Chattanooga)
Actor types
utility
Funding model
mixed
Funding description
EPB municipal revenue bonds (US$169M, 2008) + US Dept. of Energy smart-grid stimulus grant
Cost
Not recorded
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

3 source dossiers

EPB Launches America's First Community-wide 25 Gig Internet Service (EPB, authority) epb.com · 2 linked claims

Open original source ↗

Stable source ID
src-ffcd1adfd8d0e646
Publisher
Name not classified · epb.com
Type / language
web-page · language not classified
Published
2022-08-24
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Official EPB account: 1 Gbps first (Sep 2010), 10-gig (Oct 2015), 25-gig (Aug 2022); network's Smart Grid origins.

Descriptive only — not page/paragraph exact
Claims linked
Chattanooga's Municipal Fiber Network Has Delivered $5.3 Billion in Community Benefits (Community Networks / ILSR, independent) communitynetworks.org · 4 linked claims

Open original source ↗

Stable source ID
src-ad4843ec69fed9e5
Publisher
Name not classified · communitynetworks.org
Type / language
web-page · language not classified
Published
2025-12-04
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
Open archived copy ↗ · 2026-04-19
Content hash
No captured content hash
Locator
Open the recorded source note

Reports the 2024 academic study by Bento Lobo, Ph.D. (Univ. of Tennessee at Chattanooga): $5.3B net benefit since 2011 and 417M+ outage minutes prevented.

Descriptive only — not page/paragraph exact
Claims linked
Chattanooga 250: EPB harnessed light to become city's strongest selling point (Chattanooga Times Free Press, press, 2026) timesfreepress.com · 1 linked claim

Open original source ↗

Stable source ID
src-50cb58107a63ad23
Publisher
Name not classified · timesfreepress.com
Type / language
web-page · language not classified
Published
2026-07-02
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-08-27
Dossier created
2026-08-27
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Recent (July 2026) local-newspaper retrospective for currency-checking; independent of EPB.

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.