Resource and yield
P50/P75/P90 outputs, uncertainty, wake treatment, and whether the EYA is defensible.
Wind Farm Due Diligence
Independent technical review before capital moves.
Due diligence is the last line of defence before a project is financed or acquired. The scope covers resource and yield, OEM selection, power curve validation, IEC suitability, SCADA reconciliation, availability guarantees, grid, PPA, curtailment, and the assumptions inside the financial model.
2-4 weeksfast-track review
Independentno OEM or developer ties
Finance-readylender and acquirer use
What is reviewed
Technology and O&M
OEM platform fit, power curve, turbine class, availability assumptions, O&M terms, and site suitability concerns.
Permits and contracts
Land, grid, PPA, curtailment, and change-of-law clauses that can change the deal economics.
OEM, power curve, and guarantee assessment
OEM selection review
Platform track record, IEC class fit, rotor/hub-height suitability, cold/heat/desert exposure, service footprint, and bankability of the offered turbine model.
Power curve validation
Power curve source, air-density correction, turbulence sensitivity, availability exclusions, warranted curve basis, and consistency with the EYA model.
Guarantee and LD review
Availability guarantee carve-outs, grid-unavailability treatment, liquidated damages, warranty exclusions, serial-defect language, and O&M response obligations.
Operational asset and SCADA review
For refinancing and acquisition work, the technical case should be reconciled against actual operating evidence, not only the original pre-construction EYA.
- SCADA production, wind speed, availability, alarms, and turbine event logs.
- Availability bridge separating turbine, BOP, grid, curtailment, and force-majeure loss categories.
- Power curve scatter and underperformance flags by turbine family, sector, and wind-speed bin.
- Operational P50 reset and forward-looking P75/P90 for lender model use.
Risk matrix for lenders and investors
| Risk area | What is checked | Buyer impact | Output |
|---|---|---|---|
| Resource and EYA | MCP, wake, losses, uncertainty, P50/P75/P90, financial-model inputs | Debt sizing, DSCR, equity returns | Resource-input review memo |
| OEM and turbine | Class suitability, power curve, warranty, service record, serial issues | CAPEX confidence and warranty risk | OEM suitability matrix |
| Grid and curtailment | Connectivity, evacuation limit, historical curtailment, PPA curtailment clauses | Revenue haircut and downside case | Curtailment risk bridge |
| O&M and availability | Guarantee carve-outs, response times, exclusions, historical achievement | Future loss and LD recovery | Availability guarantee review |
| Permits and land | Land term, access, environmental, forest, aviation, right-of-way | Construction and refinancing risk | Red-flag register |
Red-flag review
$12k-$20k
- Key deal risks
- Short memo
- Fast turnaround
Full DD
$25k-$45k
- Full technical review
- Report and model review
- Defense call
Portfolio or utility-scale
$60k-$125k+
- Multi-asset diligence
- Data-room support
- Revision cycles
Typical red flags
- P50 overstated by weak long-term correction.
- Wake losses too low for cluster build-out.
- Availability, curtailment, or future-loss assumptions that are not backed up.
- Power curve or turbine class mismatch hidden behind OEM sales assumptions.
- Availability guarantee exclusions that make headline LD protection weak.
- Site suitability or grid assumptions that do not match the documents.
Frequently asked
How does a 2-week fast-track differ from a full DD?
A fast-track is a red-flag review; a full DD rebuilds the technical case and reviews the key documents line by line.
Can you review an operational asset's historical performance?
Yes. Operational reviews look at SCADA data, availability history, curtailment logs, O&M reports, and prior EYA reconciliations.
How do you handle confidentiality?
All engagements are under NDA, and the information barrier with target management is maintained for acquisition DD.
Need an independent read before signing?
Book a scoping call and the review scope, timeline, and deliverable mix can be set quickly.