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GS Energy Efficiency - Domestic Zimbabwe Documentazione completa General Methodology v2.0

GS1247 VPA 145 Manicaland Safe Water

GS-1127 ↗

5.0 / 10
Integrity
5.6
Transparency
4.8
Claim Safety
4.9
Documentation
4.1

Score Breakdown

Integrity

verified Additionality was confirmed by the VVB, and the baseline was reassessed in 2024 under the TPDDTEC methodology.

missing Leakage treatment is weak: one document says it is not addressed, even though a 0% deduction is recorded elsewhere.

Transparency

verified The monitoring period is clearly stated for 2023-01-01 to 2024-12-31, and the VVB is named in the validation report.

missing The extracted record has low extraction confidence, no verified emission totals, and only an unknown evidence-doc list.

Claim Safety

verified The project uses a national-default FNRB value of 0.97, which is relatively conservative for non-permanence claims.

missing Claim safety is weakened by contradictory leakage and usage assumptions, plus no stated CORSIA or CCP status.

Documentation

verified The validation report includes material findings and closed corrective actions, showing some documented review depth.

missing Low extraction confidence and only one evidence document listed suggest incomplete or fragile documentation coverage.

Detailed Analysis

Integrity

The validation report confirms additionality through VVB review, and the baseline method is project-based with a reassessment in 2024. The monitoring record says no permanent changes were made during the period, but buffer pool coverage is not stated and reversal handling is only described as not addressed, which weakens permanence confidence. Leakage is especially weak because one record says it is not addressed, even though another record records a 0% deduction; I privileged the more recent validation report for the wording, but the contradiction still lowers the score.

Transparency

The monitoring period is clearly stated, and the VVB is identified as Earthood Services Limited in the validation report. However, the extracted record shows low extraction confidence, the evidence-doc list is effectively uninformative, and no verified emission totals are available. That combination limits public-facing traceability and makes the documentation less transparent than it would be with complete, readable source files.

Claim Safety

Claim safety is moderate at best because the project uses a national-default FNRB value of 0.97 and a recent baseline reassessment, which helps. But the record contains contradictions on leakage deduction, usage monitoring, and usage assumptions, and there is no stated CORSIA or CCP status to reduce dual-claim uncertainty. I therefore treat the claims as plausible but not especially robust.

Documentation

The validation report includes several closed findings, which is a positive sign that the project underwent substantive review. Still, the record has low extraction confidence, only one evidence document is listed, and key fields such as buffer pool coverage and verified emission totals are missing. The crediting-period contradiction versus an older period also suggests the extracted documentation set is incomplete or mixed across vintages.

Overall

The project scores in the middle because it has some solid validation signals, but the evidence base is uneven and several core risk items are either missing or contradictory. I privileged the more recent validation report dated 2025-08-18 over older records where conflicts existed, but the contradictions themselves still reduce reliability. In particular, the conflicting statements on leakage, usage monitoring, FNRB, reversal status, and crediting period materially weaken confidence in the final claims.

Audit Analysis

The project has some positive integrity signals, including VVB-confirmed additionality, a recent baseline reassessment, and no permanent changes reported for the monitoring period. However, several key items are weak or inconsistent: leakage is not well justified, reversal handling is not clearly documented, and the record contains multiple contradictions that reduce confidence in the claims.

Project Description

Developer: CO2balance UK ltd Type: Energy Efficiency - Domestic Size: Micro Scale Methodology: GS TPDDTEC v 1. Crediting period: 2018-06-29 → 2023-06-28 Estimated annual credits: 10000 tCO2e SDGs: Goal 5: Gender Equality, Goal 3: Good Health and Well-Being, Goal 13: Climate Action, Goal 6: Clean Water and Sanitation

Red Flags

  • Leakage is stated as not addressed in one record, while another says it is negligible; the zero deduction is therefore not strongly supported.
  • The documentation contains several contradictions on usage monitoring, FNRB, leakage deduction, reversal status, and crediting period, which weakens reliability.

Credit Vintages

Issued Retired Available
2018
5,096 5,096 0
2019
8,625 5,329 3,296
2020
6,897 6,695 202
2021
5,673 1,315 4,358
2022
2,196 0 2,196
Total 28,487 18,435 10,052

Cosa migliorerebbe questo punteggio

  • Provide a clean, readable set of source documents that resolves the contradictions on leakage, usage monitoring, FNRB, reversal status, and crediting period.
  • Disclose verified emission totals, buffer pool treatment, and explicit CORSIA/CCP status, with a clear leakage justification and monitoring evidence.

Questi suggerimenti indicano quali prove pubbliche aggiuntive potrebbero migliorare il livello di confidenza di questa valutazione. Non garantiscono un punteggio futuro più alto.

Risk Indicators

Additionality

VVB-confirmed

Permanence

No reversal risk clearly documented

Leakage

0% deduction but justification inconsistent

Baseline

Project baseline with recent reassessment

Safeguards

FPIC and grievance mechanism present

Double-claim

CORSIA/CCP status not stated

Where to buy

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Analysis Provenance Scored 2026-04-19 General Methodology v2.0 Documentazione completa

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