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Re-assessment pendingVCSEnergy industries (renewable/non-renewable sources)TurkeyVintage 2017Registry: RegisteredACM0002

Buyukduz Hydroelectric Power Plant, Turkey

Developer: Ayen Enerji A.S

VCS-1322 ↗

#1867of 5087 in Renewable energy#214of 431 in Türkiye#826of 1608 in Verra (VCS)#1346of 3484 in ACM0002

Score from methodology v2.1 (analysis of 1 Sep 2026). Re-assessment under v2.2 pending.

Assessment

CarbonMeld document-based assessment

01020304 Overall 5.8 / 10 Dimension scores are locked — the faint arcs are empty tracks, not zero scores.

Scale 0–10 · method weights: integrity 35% · transparency 25% · claim safety 25% · documentation 15%.

Re-assessment pending · v2.1

Analysis

The Büyükdüz hydroelectric project has a solid additionality case (investment test confirmed by the VVB) and a well-documented monitoring protocol using TEIAS meter data, but is undermined by twelve unresolved assessment findings, a project-specific baseline, and a leakage treatment that the most recent verification report describes as 'not addressed.' The project delivered roughly 79% of its pro-rata ex-ante expectation for the elapsed monitoring period, which is conservative but the documentation gaps and contradictions between the 2021 and 2023 verification reports reduce confidence in the overall credit quality.

Red Flags

4 red flags detected — Unlock with Premium

Findings

Risk Indicators

Additionality

🔒

Permanence

🔒

Leakage

🔒

Baseline

🔒

Safeguards

🔒

Double-claim

🔒

Risk indicator details are a Premium feature

Score Breakdown

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Detailed Analysis

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Evidence

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On this page: the analysis of 1 Sep 2026, marked “Re-assessment pending”. Per-dimension scores, risk indicators, 4 red flags, score factors, detailed analysis, and 18 registry documents (18 analyzed).

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Eligibility & market

What can you claim with this credit?

Four checks buyers ask about, from the registry and the Integrity Council (ICVCM).

  • Airlines (CORSIA)

    No CORSIA label on the registry

    Not usable for airlines' CORSIA obligations.

    Source: registry label

  • Integrity label (ICVCM CCP)

    Methodology not approved by ICVCMACM0002

    The Integrity Council assessed this methodology as not meeting the Core Carbon Principles.

    Source: ICVCM assessment

  • Removal or reduction

    Emission reduction or avoidance

    Prevents or reduces emissions — fits contribution claims, not SBTi neutralisation.

    Source: project sector

  • Paris Agreement (Article 6)

    No Article 6 authorization

    No corresponding adjustment: the host country can also count this reduction towards its own target.

    Source: registry label

Information only, from public sources. Claim rules (CORSIA, SBTi, EU rules on green claims) change: check them before making a public claim. Since 27 September 2026, EU consumer rules do not allow “climate neutral” product claims based on offsets.

Registry labels last checked:2026-10-25

Credit Vintages

IssuedRetiredAvailable
2012
34,52334,5230
2013
70,63322,38448,249
2014
62,801062,801
2015
45,90345,9030
2016
85,010085,010
2017
68,70564,8593,846
2018
90,144090,144
2019
72,669072,669
2020
65,970065,970
2021
56,318056,318
2022
73,500073,500
Total726,176167,669558,507

Methodology versions used

The methodology version stated in each monitoring, verification and issuance document, by period, compared with the official methodology pages.

  1. 2012–2017ACM0002 v14.0since replaced by v22.0

    verification report

    official page · verified on

  2. 2012–2017ACM0002 v14.0since replaced by v22.0

    monitoring report + verification report

    official page · verified on

  3. 2017–2022ACM0002 v21.0since replaced by v22.0

    verification report

    official page · verified on

  • ACM0002: Active (CDM / UNFCCC) · official page · verified on

A version is shown only when the document's own text writes it next to the methodology code. Current versions, status and CCP ranges come from the official pages linked, checked on the date shown.

Documents on the registry

Retired by

Organisations named as beneficiaries in the registry's public retirement records.

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Analysis ProvenanceACM0002

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