Conversion of existing open cycle gas turbine to combined cycle at Guaracachi power station, Santa Cruz, Bolivia

Audit Analysis

A CDM energy-efficiency project converting an open-cycle gas turbine to combined cycle at Guaracachi, Bolivia, using the standard ACM0007 methodology. The project has a barrier additionality test and a project-specific baseline reassessed at the start of its 7-year crediting period, but suffers from significant data gaps: identical claimed and verified ERR figures with no stated monitoring period, a 0% leakage deduction with contradictory justifications across documents, and 11 material findings (all resolved) in the monitoring report. The absence of FNRB, usage-rate data, CORSIA/CCP status, and safeguards documentation limits confidence in the credit's robustness.

Project Description

Red Flags

• ⚠Identical claimed and verified ERR (165,708 tCO₂e) with no stated monitoring period — cannot confirm actual delivery versus ex-ante estimate
• ⚠Leakage justification contradicts between the monitoring report ('quantified') and the validation report ('deemed negligible'), undermining confidence in the 0% deduction
• ⚠11 material findings in the monitoring report, including calculation errors in Build Margin and Operating Margin emission factors and in the GHG reduction calculation, indicating initial documentation quality issues
• ⚠No buffer pool, no FNRB value, no usage-rate data, and no CORSIA or CCP eligibility status found in any available document

Credit Vintages