Fengxi Geothermal Space Heating Project in Xi’an city, Shaanxi Province

Audit Analysis

The Fengxi Geothermal Space Heating Project has a VVB-verified combined additionality test and a consistent ex-ante ERR estimate of 175,260 tCO₂e, but suffers from notable gaps: no buffer pool is documented, reversal risk is unaddressed, the leakage treatment is contradictory across documents, and the overall extraction confidence is low. The project is a geothermal avoidance project with moderate structural protections, but the absence of permanence safeguards and incomplete monitoring documentation limit confidence in long-term credit integrity.

Project Description

Red Flags

• ⚠No buffer pool percentage is stated in any available document, leaving the 10-year crediting period (2021–2031) without a documented permanence backstop.
• ⚠Reversal events are explicitly marked as 'not addressed' in the extracted record, despite the project having a 10-year crediting window.
• ⚠The validation report (April 2023) rates leakage as 'deemed negligible' while the PDD (July 2022) does not address leakage at all — a direct contradiction that weakens the 0% deduction justification.
• ⚠Minimum extraction confidence is rated 'low', indicating at least one key document was poorly readable, which undermines confidence in the completeness of the evidence base.
• ⚠The crediting period begins in January 2021, yet the validation report is dated May 2023 — a gap of over two years that raises questions about the timeline of project approval and credit issuance.

Credit Vintages

No issuances recorded on the registry.