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Renewable Energy and Energy-Efficient Technology Screen (RETScreen)

The Renewable Energy and Energy-Efficient Technology Screen (RETScreen) is a Clean Energy Management Software system for energy efficiency, renewable energy and co-generation project feasibility analysis as well as ongoing energy performance analysis.

The RETScreen Software Suite, which consists of RETScreen 4 and RETScreen Plus, is a decision-support tool used to evaluate the energy production and savings, costs, emission reductions, financial viability and risk for various types of renewable energy and energy-efficient technologies (RETs).

RETScreen 4 is an Excel-based clean energy project analysis tool that helps decision makers quickly and inexpensively determine the technical and financial viability of potential renewable energy, energy efficiency and co-generation projects.

RETScreen Plus is a Windows-based energy management tool that allows project owners to easily verify the ongoing energy performance of their facilities.

Key questions addressed:

  • What is the environmental and economic impact of my energy efficiency or renewable energy project?

Sample data inputs:

  • Energy data
  • Load and network design
  • Cost data
  • Greenhouse gas (GHG) emission factors
  • Discount rate
  • Debt ratio
  • Sensitivity percentages

Sample quantitative outputs:

  • Fuel consumption
  • Net annual GHG emission reduction
  • Total annual savings and income
  • Internal rate of return
  • Payback period
  • GHG reduction credit rate

Access Renewable Energy and Energy-Efficient Technology Screen (RETScreen).


RETScreen textbook

RETScreen training material

Case studies

Presentation: Clean Energy policy analysis with RETScreen

Presentation: Mitigation methods and tools in the energy sector.

Tool Summary

  • Free
Expertise Required:
  • Simple
Geographic Scope:
  • Local
  • Sectoral
  • Project
Impacts Assessed:
  • Economic
    • General
  • Environmental
    • Greenhouse Gases