Solar Software P3 Reference 2 min read Reviewed June 4, 2026

SAM Financial Model

SAM's financial engine models full project finance: LCOE, IRR, NPV, tax equity, debt sizing.

Definition

SAM (System Advisor Model) includes a comprehensive financial engine modeling LCOE, IRR, NPV, debt sizing, tax equity, ITC, depreciation, and PPA tariffs. Used for utility-scale solar project finance modeling.

Key Takeaways

  • SAM Financial = NREL’s open-source project finance module.
  • Models LCOE, IRR, NPV, tax equity, debt sizing.
  • Companion to SAM’s energy modeling.
  • Used by developers, IPPs, and policy analysts.
  • Free; scriptable.

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