Aliağa Plant

İzdemir

01 Snapshot

Audit-grade Scope 1 · 2024

271,123

tCO₂ · direct · TSRS independent assurance

cf-corrected formula (leave-one-plant-out)

280,735

+4% vs. truth

EU CBAM default

2,850,000

+951% vs. truth

95% conformal prediction interval (formula, leave-one-plant-out, n=19): 151,922 – 518,768 tCO₂ (truth inside ✓)

95% interval restricted to steel-EAF calibration set: 267,366 – 294,774 tCO₂ (truth inside ✓ · undercoverage caveat at small n)

Open printable audit summary → One-page PDF you can hand to a verifier.

02 Facility data

Company: İzdemir
Plant: Aliağa Plant
Sector: steel
City: Aliağa
Capacity: 1,500,000 t/y
Label source: disclosure
Provenance: Per-plant Scope 1 directly disclosed by operator.
Headline method: cf-corrected formula (capacity × route-EF × cf), evaluated leave-one-plant-out. +82.3% log-MAE reduction vs EU default across the 19 validatable plants.

03 Source citation

İzdemir 2024 TSRS-compliant SR p48

EAF; 1.82M t product; calc-based not 3rd-party verified; excludes İzdemir Energy power plant

04 Satellite cross-check

The TROPOMI flux-divergence catalog of Beirle et al. (2023, ESSD) lists a NOx source within 3.2 km of this plant:

0.344 ± 0.059 kg NOx/s (colocated source: Enka İzmir Doğalgaz Santrali;İzdemir Enerji power station)

NOx is an activity proxy independent of operator disclosure. A catalog hit within 15 km means the plant (or its colocated captive power) is bright enough in TROPOMI to register globally. This row is in the data/beirle_match_audit_grade.csv join shipped with the bench.

05 Hyperspectral coverage

6 EnMAP L2A scenes index this plant (6 with <1% cloud cover). Source: DLR EOC STAC. Following Borger et al. (2025), these scenes can yield direct CO₂ and NO₂ plume retrievals at ~30 m spatial resolution.

Lowest cloud cover scenes (showing top 5):

2023-03-25T09:37:05Z · cloud cover 0% · ENMAP01-____L2A-DT0000012071_20230325T093705Z_002_…
2024-08-15T09:32:54.905235Z · cloud cover 0% · ENMAP01-____L2A-DT0000087645_20240815T093252Z_018_…
2024-08-15T09:32:54.905235Z · cloud cover 0% · ENMAP01-____L2A-DT0000087645_20240815T093252Z_018_…
2024-08-15T09:32:59.357339Z · cloud cover 0% · ENMAP01-____L2A-DT0000087645_20240815T093257Z_019_…
2024-08-15T09:32:59.357339Z · cloud cover 0% · ENMAP01-____L2A-DT0000087645_20240815T093257Z_019_…

Downloads require a free DLR EOWEB account (see enmap_access_howto.md).

06 Verify / correct

If you're an operator or analyst with a more recent disclosure than what's shown above:

Open a pull request adding a row to data/tr_facility_known_emissions.csv (source).
Or email hi@barisgunaydin.com with the source PDF.
Or use the claim-your-facility form on the bench page.

Corrections that include a verifiable public source land within 24 hours. All data is Apache-2.0 licensed; methodology at iz-mrv.pages.dev/paper.