Nepal Biogas Support Program - CPA 2: 19,927 digesters
GS-1469 ↗ · current registry ID: GS3113
#183of 268 in Biogas#88of 101 in Nepal#1411of 1801 in Gold Standard (GS)
Audit Analysis
The Nepal Biogas Support Program CPA 2 is a large-scale biogas project (19,927 digesters) with a quantified 5% leakage deduction and a combined additionality test, but it is undermined by the absence of a buffer pool, a project-specific baseline, over 20 corrective actions, and significant data-quality issues across its monitoring and verification documents. The 2015 earthquake caused a 5,352 tCO2e reduction in emission reductions, and several digesters were found abandoned or non-operational during site visits. Multiple contradictions between verification reports (2023 vs 2025) on ERR figures, FNRB values, and additionality verification status reduce confidence in the data.
Red Flags
- No buffer pool percentage is stated in any available document, leaving reversal risk from finite-lifetime digesters unmitigated
- 20+ corrective actions were raised across verification reports, including missing QA/QC procedures, incorrect leakage calculations, and inconsistent operational percentages
- The 2023 verification report shows total ERR verified equal to total ERR claimed (569,523), which is atypical and suggests a possible data-entry or scope error
- Additionality VVB verification is contradictory: confirmed in the 2015 validation report but marked as not verified in the 2020 validation report
Credit Vintages
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2014 | 41,738 | 0 | 41,738 | |
| 2015 | 62,937 | 0 | 62,937 | |
| 2016 | 59,658 | 0 | 59,658 | |
| 2017 | 55,915 | 0 | 55,915 | |
| 2018 | 58,655 | 0 | 58,655 | |
| 2019 | 60,917 | 0 | 60,917 | |
| 2020 | 61,076 | 0 | 61,076 | |
| 2021 | 61,670 | 61,670 | 0 | |
| 2022 | 54,833 | 28,500 | 26,333 | |
| Total | 517,399 | 90,170 | 427,229 |
Risk Indicators
Combined test present but VVB re-verification contradictory (2015 vs 2020)
finite-lifetime digesters; no reversal events reported
5% quantified deduction with justification
Project-specific baseline, last reassessed 2020
Grievance mechanism and benefit sharing documented; FPIC not stated
CORSIA and CCP eligibility not stated in available documents
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