Climate Documentation Standards
Executive Summary
Key Takeaways
- ✓ Climate finance model documentation should make capital structure terms, carbon and MRV methodology sourcing, and climate scenario construction basis traceable to a named source, durable across personnel turnover rather than dependent on an individual builder's memory.
- ✓ Capital structure documentation should record each tranche's specific terms, position, and any additionality-conditioned eligibility, since these terms directly determine the return waterfall and cannot be safely inferred from the model's formulas alone.
- ✓ Carbon and MRV methodology documentation should record the specific standard or scheme applied, the source of any carbon price forecast, and the verification body or process relied upon for any climate outcome claim.
- ✓ Climate scenario documentation should record each scenario's narrative, its specific macro variable sources, and the basis for any probability weighting applied, so a reviewer can assess the scenario set's construction without needing to consult the original builder.
- ✓ Documentation should be updated at each MRV cycle, carbon price forecast refresh, or scenario update, not held static from the model's original build, consistent with the rolling update discipline applied throughout this pillar's investment lifecycle content.
Objective¶
This guide sets out documentation standards for a climate finance model within Climate Finance & Climate Financial Modelling, making it durable and defensible across personnel turnover.
Capital Structure Documentation¶
Capital structure documentation should record each tranche's specific terms, position, and any additionality-conditioned eligibility, since these terms directly determine the return waterfall calculation in Climate Investment Models and cannot be safely inferred from the model's formulas alone.
Carbon and MRV Methodology Documentation¶
Carbon and MRV methodology documentation should record the specific standard or scheme applied, the source of any carbon price forecast, and the verification body or process relied upon for any climate outcome claim.
Climate Scenario Documentation¶
Climate scenario documentation should record each scenario's narrative, its specific macro variable sources, and the basis for any probability weighting applied, consistent with the disclosure discipline in Climate Scenario Analysis.
Rolling Documentation Updates¶
Documentation should be updated at each MRV cycle, carbon price forecast refresh, or scenario update, not held static from the model's original build, consistent with the rolling update discipline described in Climate Investment Lifecycle.
Common Construction Pitfalls¶
Capital structure terms undocumented and inferred from formulas alone. Leaves the model's return waterfall unexplainable to a reviewer unfamiliar with the original structuring.
Carbon and MRV methodology sourcing undocumented. Prevents independent assessment of the underlying methodology's credibility.
Documentation held static after the model's original build. Leaves documentation increasingly stale as MRV data, carbon prices, and scenarios are updated without corresponding documentation updates.
Recommended Practices¶
- Document each capital tranche's specific terms, position, and eligibility conditions.
- Document the specific carbon and MRV methodology standard, source, and verification process applied.
- Document each scenario's narrative, macro variable sources, and probability weighting basis.
- Update documentation at each MRV cycle, carbon price refresh, or scenario update.
Continue Reading¶
Related Pillars¶
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Frequently Asked Questions
What should climate finance model documentation make traceable?
Capital structure terms, carbon and MRV methodology sourcing, and climate scenario construction basis, each traceable to a named source, so the model remains durable and defensible across personnel turnover rather than dependent on an individual builder's memory of undocumented assumptions.
What should capital structure documentation record?
Each tranche's specific terms, position, and any additionality-conditioned eligibility, since these terms directly determine the return waterfall calculation and cannot be safely inferred from the model's formulas alone by a reviewer unfamiliar with the original structuring.
What should carbon and MRV methodology documentation record?
The specific standard or scheme applied, the source of any carbon price forecast, and the verification body or process relied upon for any climate outcome claim, so a reviewer can independently assess the credibility of the underlying methodology.
What should climate scenario documentation record?
Each scenario's narrative, its specific macro variable sources, and the basis for any probability weighting applied, so a reviewer can assess the scenario set's construction and internal consistency without needing to consult the original builder.
How often should climate model documentation be updated?
At each MRV cycle, carbon price forecast refresh, or scenario update, not held static from the model's original build, consistent with the rolling update discipline applied throughout the climate investment lifecycle, since a climate model's key inputs change more frequently than a typical static corporate model's assumptions.
References
Related Articles
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