Cambodia National Biodigester Programme
Score Breakdown
Integrity
verified Additionality was confirmed by the VVB in the verification report, which supports the project’s core eligibility claim.
missing Leakage treatment is weak: the verification report shows a 0% deduction but says the justification is not addressed, and reversal events are not addressed.
Transparency
verified The project has a named VVB, a defined 2024 monitoring period, and a recent verification report dated 2026-01-05.
missing The record has low extraction confidence and several contradictions, while total emissions claimed are not available for comparison against the verified amount.
Claim Safety
verified The project is not CORSIA-eligible, which lowers dual-market claim risk.
missing The baseline is project-specific rather than standardized, leakage is not well justified, and the verified usage rate is only about 45.9%, which raises over-crediting concerns.
Documentation
verified The evidence set is broad, with multiple official document types used and a recent verification report within the crediting period.
missing Extraction confidence is low and the verification report lists multiple corrective actions, indicating documentation quality and completeness problems.
Detailed Analysis
Integrity
The verification report from Bureau Veritas India Pvt. Ltd. confirms additionality, which is a meaningful positive for integrity. However, the project uses a project baseline rather than a more robust standardized baseline, leakage is recorded as 0% with the justification marked not addressed, and reversal events are also not addressed. The presence of five material findings/corrective actions further weakens confidence in the robustness of the crediting claim.
Transparency
Transparency is moderate because the project has a named verifier, a clear 2024 monitoring period, and a recent verification report dated 2026-01-05. At the same time, the extracted record has low extraction confidence, and total emissions claimed are not available for direct comparison with the verified amount of 62,820. The documentation also contains several cross-document inconsistencies, which makes the public record less reliable.
Claim Safety
Claim safety is middling. The project is explicitly not CORSIA-eligible, which reduces dual-claim risk, but the baseline remains project-specific and the leakage treatment is weak. The verified usage rate of 45.945% is much lower than the earlier contradictory figure in the record, and the FNRB value of 95.01 is higher than the earlier 77, suggesting the project may be relying on a conservative national default but with inconsistent supporting evidence.
Documentation
The documentation set is fairly broad, including a verification report, validation report, monitoring report, PDD, and stakeholder consultation materials. Even so, min extraction confidence is low, and the verification report lists multiple corrective actions, which indicates that some key evidence was difficult to read or incomplete. The crediting period is also not especially fresh relative to the 2024 monitoring period, though the 2026 verification report helps partially offset that.
Overall
I privileged the most recent and specific verification report for values such as usage rate, leakage treatment, safeguards, and additionality, because it is the latest official assessment. Where contradictions exist, they materially reduce confidence: the record conflicts on usage rate, grievance mechanism, leakage deduction, benefit-sharing/FPIC, FNRB, and credited emissions, so I discounted transparency and documentation scores. The project remains viable on paper, but the combination of weak leakage justification, unresolved reversal treatment, and multiple corrective actions keeps the overall assessment only moderate.
Audit Analysis
This is a certified Gold Standard biogas project with VVB-confirmed additionality and a recent verification report, but several material issues reduce confidence. Leakage is not well justified, reversal handling is not addressed, and the record contains multiple contradictions across documents, including usage rate, grievance mechanism, leakage treatment, and credited volume.
Project Description
In rural areas of Cambodia, more than 90% of the people depend on traditional sources of fuel for cooking. Especially women and children are exposed to harmful fumes in their kitchens when cooking with fuel wood. The average energy costs and time to collect these fuels are a substantial burden for women and children. Their farming practices are mostly based on an integrated system combining crop production and animal husbandry. Biogas has the potential to provide an improved livelihood for rural households. Biogas has significant potential as a technology to enable energy access, improve the economic returns to smallholder farming, address climate change, and mitigate health concerns. The sale of Gold Standard carbon credits enables the National Biodigester Programme to continue replacing traditional cooking devices using fossil fuels or non-renewable biomass with biogas stoves, improve animal waste management, and produce organic fertiliser for soil quality improvement at the household level. Project impacts and benefits: • 123,357 direct beneficiaries with access to clean energy, including clean cooking • $250 USD savings in expenditures on cooking fuels and fertiliser per household per year • 76,779 tCO2 reduced per year • Bioslurry, produced as a by-product from the biodigester, is used as a fertiliser, increasing smallholder farmers' productivity and supplementing household incomes. More information on this project is available in the Gold Standard Impact Registry. N.B. Individual vintages cannot be selected for purchase. Purchases will include credits from the vintage range stated.
Red Flags
- Leakage is set at 0% in the verification record, but the justification is marked as not addressed and an earlier document reportedly used a 0.4% deduction.
- The project has five material findings/corrective actions in the verification report, and reversal events are not addressed.
- There are contradictions on usage rate, grievance mechanism, benefit-sharing/FPIC, FNRB, and credited emissions, which weakens reliability.
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2009 | 13,621 | 13,621 | 0 | |
| 2010 | 31,291 | 31,291 | 0 | |
| 2011 | 43,337 | 43,337 | 0 | |
| 2012 | 69,438 | 69,438 | 0 | |
| 2013 | 97,221 | 97,221 | 0 | |
| 2014 | 85,446 | 85,436 | 10 | |
| 2015 | 117,437 | 117,437 | 0 | |
| 2016 | 117,063 | 117,063 | 0 | |
| 2017 | 104,237 | 102,794 | 1,443 | |
| 2018 | 103,000 | 101,237 | 1,763 | |
| 2019 | 62,440 | 62,406 | 34 | |
| 2020 | 62,820 | 62,820 | 0 | |
| 2021 | 52,392 | 48,923 | 3,469 | |
| 2022 | 61,764 | 30,024 | 31,740 | |
| 2023 | 51,739 | 14,291 | 37,448 | |
| Total | 1,073,246 | 997,339 | 75,907 |
Cosa migliorerebbe questo punteggio
- Provide a clear, quantified leakage assessment and reconcile the 0% deduction with the earlier 0.4% figure.
- Publish a clean cross-document reconciliation for usage rate, grievance mechanism, FNRB, credited emissions, and corrective actions, with the latest verification evidence clearly linked.
Questi suggerimenti indicano quali prove pubbliche aggiuntive potrebbero migliorare il livello di confidenza di questa valutazione. Non garantiscono un punteggio futuro più alto.
Risk Indicators
VVB-confirmed additionality
No reversal treatment stated
0% deduction, weak justification
Project baseline, reassessment timing unclear
FPIC and grievance mechanism documented
Not CORSIA-eligible; CCP status unstated
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Registry Documents
monitoring
Other
pdd
validation
- (2)Verification report Cambodia Biogas VER8_20200904.pdf
- GS Validation Report_01.02.2019_v2.pdf
- GS751_NBP Verification Report Approved.pdf
- Verification report GS 751 Cambodia.pdf
- Verification report Cambodia Biogas VER8 final.pdf
- Verification Report - GS751 NBP 2025 (Revised 05012026) Clean.pdf
- +2 more
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