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The RETScreen International 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 worldwide to evaluate the energy production and savings, life-cycle costs, emission reductions, financial viability and risk for various types of energy efficient and renewable energy technologies (RETs). The software also includes product, cost and climate databases, and a detailed online user manual. Other tools include: a case study based on a college/university-level training course; an engineering electronic textbook; and an extensive Website. All of these tools are available free-of-charge in English and French, with many of the tools available in other languages.

The RETScreen International Clean Energy Decision Support Centre seeks to build the capacity of planners, decision-makers and industry to implement renewable energy and energy efficiency projects. This objective is achieved by: developing decision-making tools (e.g. RETScreen Software) that reduce the cost of pre-feasibility studies; disseminating knowledge to help people make better decisions; and by training people to better analyse the technical and financial viability of possible projects. RETScreen International is managed under the leadership and ongoing financial support of Natural Resources Canada's (NRCan) CANMET Energy Technology Centre - Varennes (CETC-Varennes). 		  RETScreen
 
Acess RETScreen
 
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Instructions
Go to the RETScreen website and download the RETScreen energy analysis tool. Use the RREX tool, to query the renewable energy resource potential at a specific location by zooming in and clicking on the map. Click on the "Graph Data" button to the lower right of the map. Create graphs of all of the layers of interest. Click on the "Download Data" on the middle right of the page to create a ".csv" file containing data for all of the variables graphed. Read the RETScreen documentation to determine how to input the data into RETScreen.