Cerro Dominador Concentrating Solar Power Plant in Chile

Audit Analysis

The Cerro Dominador CSP project is a VCS-registered renewable energy project with VVB-confirmed additionality and a standard grid-emission-factor baseline, but it is undermined by seven material findings (including prolonged equipment failures and a 79.47% shortfall versus ex-ante estimates), nine cross-document contradictions, a 0% leakage deduction with inconsistent justification, and a low extraction-confidence record. The project is conservatively delivering relative to its lifetime estimate, and CORSIA ineligibility limits dual-channel risk, yet the data-quality and operational-reliability issues prevent a higher rating.

Project Description

Red Flags

• ⚠Seven material findings in the 2024 verification report, including two months of plant downtime from equipment failures (evaporator tube, salt leaks, pump failure) and a steam-generator outage from December 2021 to March 2022
• ⚠Nine contradictions across documents, including conflicting baseline-method designations (project-specific vs jurisdictional), opposing FPIC and grievance-mechanism findings between 2022 and 2024 verification reports, and three different ERR figures (28,810 / 92,756 / 205,753 tCO2e) attributed to different reporting periods
• ⚠Leakage deduction of 0% with justification recorded as 'not addressed' in the 2024 verification report while the 2024 monitoring report calls it 'deemed negligible' — no quantitative leakage analysis is documented
• ⚠No buffer-pool percentage or permanence mechanism is stated in any available document, and the project's operational reliability is called into question by repeated equipment failures
• ⚠Minimum extraction confidence is rated low, and one of the six document types in the evidence list is classified as 'unknown', reducing confidence in the completeness of the documentary record

Credit Vintages