CDMMethane avoidanceGuatemalaAMS-I.A

Biogas energy plant from palm oil mill effluent

CDM-1509 ↗

This rating is archived — the project is no longer listed or its registry data has changed. This is the last published analysis (2026-08-26).
5.9/ 10
Integrity
5.5
Transparency
6.0
Claim Safety
6.0
Documentation
6.5

Scored2026-08-26medium confidence Latest verified monitoring: 2012-12-31

Generated by CarbonMeld Analysis Pipeline · Methodology · Editorial Policy · About the System
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Audit Analysis

A CDM biogas project in Guatemala with a VVB-confirmed combined additionality test and a measured project-specific baseline, but hampered by data-quality issues (power interruptions, negative methane readings) and the absence of a buffer pool or explicit permanence safeguards. The verified reduction exceeds the project's own claim, suggesting conservative reporting, though several contradictions across documents and missing methodological details (FNRB, usage rates) limit confidence.

Red Flags

  • Multiple data-quality incidents during monitoring (power interruptions causing missing parameters, negative CH4 records nullified per EB52) indicate fragile MRV infrastructure
  • No buffer pool or permanence mechanism documented for a biogas project where plant shutdown would eliminate future reductions
  • Grid emission factor dated to 2006 with no evidence of update over the 7-year crediting period
  • Five contradictions across documents (leakage treatment, baseline type, additionality test, ERR figures, crediting period dates) reduce data reliability

Credit Vintages

IssuedRetiredAvailable
2010
12,854012,854
2011
29,364029,364
2012
55,123055,123
2013
35,615035,615
Total132,9560132,956

Risk Indicators

Additionality

VVB-confirmed combined test

Permanence

No buffer pool; no reversal events but no permanence mechani

Leakage

Deemed negligible with justification; appropriate for biogas

Baseline

Project-specific; contradiction between measured and modeled

Safeguards

Stakeholder consultation documented; FPIC and grievance mech

Double-claim

CORSIA and CCP status not stated; CDM credits typically sing

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Analysis ProvenanceScored2026-08-26AMS I-A, AMS I-D, AMS III-H
Methodology·Editorial Policy·About the System

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