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Wind and Solar Power Independent Engineering Services

UL Solutions’ independent engineering reports help developers and lenders evaluate renewable energy projects to identify and mitigate risk.

Workers reviewing an engineering report, with solar panels behind them

Independent engineering services for renewable energy

We help make the critical financial close of a wind or solar project as smooth and successful as possible. Our technical and commercial expertise, along with our understanding of the intricacies of project finance, make us the ideal partner for developers bringing a project to fruition. Our team of engineers and technical advisors will help you prepare your project for financing, mitigate risk and help ensure it is technically sound and ready for construction.

Identifying and mitigating renewables investment risks

We support developers and lenders in their evaluation of technologies and projects for debt and equity investments. Our independent engineering (IE) reviews deliver objective information from a full scope of services needed to identify and mitigate the possible risks in wind and solar projects. Our solid reputation and global bankability in the renewable energy industry has been built on experience, quality and transparency, and our track record reflects the trust that lenders have placed with us to help ensure project viability and profitability. Technical and commercial expertise, along with our understanding of the intricacies involved in project finance, makes us an ideal partner for developers looking to raise capital and lenders looking to finance energy projects. The approach we employ for our reports has been thoroughly vetted over time with some of the world’s top lead arrangers and lenders, so we know exactly what they are looking for. We will guide you through the technical aspects of financing so your project can secure the capital it needs to thrive. We offer a full scope of IE services for IE reports, but we can also tailor a scope to fit our clients’ specific needs.

Independent engineering reports can include:

Project Overview

  • Site layout
  • Initial site visit

Energy production report

  • Energy production report summary
  • Energy loss review

Turbine technology review

  • Wind turbine site suitability

Balance of plant (BOP) design review

  • Foundation and geotechnical design review
  • Electrical design review

Third-party curtailment and congestion


Contracts review

  • Power purchase and hedge agreements
  • Interconnection agreements
  • Turbine supply agreements
  • Balance of plant contracts
  • Schedule and scope of agreements
  • O&M and asset management contracts
  • Shared facilities and co-tenancy agreements

Environmental and permitting

Financial assessment

  • CAPEX review
  • Operating assumptions review
  • OPEX forecast

Construction monitoring

  • Progress report review
  • Construction drawdown verification
  • Construction monitoring site visits
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