Household biogas plants installed in rural areas of Madhya Pradesh , India

Audit Analysis

A Gold Standard household biogas project in rural Madhya Pradesh with VVB-confirmed additionality, a quantified 5% leakage deduction, and no reversal events, but undermined by a project-specific baseline, a 30% downward revision of the ex-ante lifetime estimate between PDD versions, a contradiction in the fNRB method (local field vs. national default), and over twenty corrective actions flagging calculation and reporting inconsistencies. The project delivered roughly 92% of its pro-rata expectation for the 2024 monitoring period, which is within a reasonable band, but the volume of unresolved documentation issues and the low extraction confidence of the source records limit confidence in the overall data quality.

Project Description

Red Flags

• ⚠The ex-ante lifetime emission reduction estimate dropped from 256,041 tCO₂e (PDD, Dec 2019) to 178,453 tCO₂e (PDD, Aug 2024), a 30% reduction, without a clearly documented justification in the extracted record.
• ⚠The fNRB method is reported as 'local field' in the 2025 verification report but as 'national default' in the 2024 PDD, creating uncertainty about which value underpins the credit calculation.
• ⚠Over twenty corrective actions were raised by the VVB, including inconsistencies in net emission reduction values between MR sections, a missing consolidated calculation sheet, and an unclear derivation of the ex-ante estimate.
• ⚠The verified usage rate is 97.77% per the 2025 monitoring report but 92% per the 2025 verification report, a 5.8-percentage-point gap that affects the credit calculation.
• ⚠Minimum extraction confidence across the 24 source documents is rated low, meaning at least one key document was poorly readable and the structured data may be incomplete.

Credit Vintages