Sonnenerde Pyreg 500
#1333of 1935 in Renewable energy#56of 111 in Puro.earth (PUR)
Audit Analysis
Sonnenerde Pyreg 500 is a Puro.earth biochar removal project in Austria with a named VVB (bio.inspecta AG) and a combined additionality test, but the extracted record shows significant gaps: no buffer pool, no leakage treatment, no reversal data, and a project-specific baseline. A 12-fold discrepancy in verified ERR figures between the 2022 verification report (1,762 tCO₂e) and the 2024 issuance (146.42 tCO₂e) cannot be reconciled because the lifetime ex-ante estimate is absent from the record, and a separate contradiction in the permanence claim (100 vs 1,000 years) further undermines confidence in the project's data integrity.
Red Flags
- 12-fold discrepancy in verified ERR between the 2022 verification report (1,762 tCO₂e) and the 2024 issuance (146.42 tCO₂e); the lifetime ex-ante estimate is not available to perform a pro-rata reconciliation
- No leakage deduction or justification found in any extracted document for a biochar removal project where feedstock-sourcing and soil-carbon displacement leakage are expected
- No buffer pool percentage stated, no reversal-event data, and no permanence-risk mitigation documented for a 100-year removal claim
- Permanence claim contradicts itself across issuances: 1,000 years (2021) vs 100 years (2024)
- Safeguards, FPIC, and grievance mechanism are entirely absent from the extracted record
Credit Vintages Exhausted
| Issued | Retired | Available | ||
|---|---|---|---|---|
| 2021 | 229 | 229 | 0 | |
| 2022 | 52 | 52 | 0 | |
| 2023 | 47 | 47 | 0 | |
| 2024 | 146 | 146 | 0 | |
| Total | 474 | 474 | 0 |
Risk Indicators
Combined test present; VVB confirmation not confirmed in record
100-yr claim
No leakage deduction or justification found
Project-specific; no reassessment date in record
FPIC, grievance mechanism, safeguards all absent
CORSIA and CCP status both not stated
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