The RETScreen® Clean Energy Project Analysis Software is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. The software, provided free-of-charge, can be used world-wide to evaluate the energy production, life-cycle costs, emission reductions, financial viability and risk for various types of proposed energy efficient and renewable energy technologies compared to conventional energy projects. The software also includes product, cost, climate and project databases; a detailed user manual, a case study based college/university-level training course and an engineering textbook.

Software & Data Requirements: Microsoft® Excel 2000 or higher; Microsoft® Windows 2000 or higher; and Microsoft .NET Framework 2.0 or higher. Please make sure that the latest updates from Microsoft (www.microsoft.com) for Windows and Excel are installed on your computer.

Click here to download RETScreen 4 (25 MB).