NASA Home Page Goddard Space Flight Center Home Page
NASA Logo - Goddard Space Flight Center   + Visit
a directory of Earth science data and services Global Change Master Directory Web site
header 2 bullet Links bullet FAQ bullet Contact Us bullet Site Map
Home Data Sets Data Services Learn about GCMD_legacy's portal collaborations. Add new dataset or dataservice records to GCMD_legacy What's New Participate Calendar About GCMD_legacy
Record Search Query: ServiceParameters>MODELS>SOCIAL AND ECONOMIC MODELS

RETScreen International Renewable Energy Project Analysis Software
Entry ID: RETScreen
[ Get Service ]
[ Update this Record ]

Abstract: The RETScreen International Renewable 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 and greenhouse gas emission reductions for various types of
renewable energy technologies (RETs). The software also includes product, cost
and weather databases; and a detailed online user manual.

Currently, the software can be used to evaluate the eight renewable energy
technologies listed in the menu bar to the left. Upgrades to the existing
models and the creation of new technology models are also under development, as
described in the "forthcoming" menu bar item.

Each RETScreen renewable energy technology model (e.g. Wind Energy Project,
etc.) is developed within an individual Microsoft Excel spreadsheet "Workbook"
file. The Workbook file is in-turn composed of a series of worksheets. These
worksheets have a common look and follow a standard approach for all technology

There are five key worksheets provided with each technology Workbook file. The
first is the "Energy Model" worksheet which is used to calculate the annual
energy production of the RET project being considered. The second is a
sub-worksheet that is specific to the particular RET (e.g. "Equipment Data"
worksheet). The third is the "Cost Analysis" worksheet which is used to
calculate the total initial, annual and periodic project costs. The fourth is
an optional Greenhouse Gas Emission Reduction Analysis ('GHG Analysis')
worksheet used to estimate the greenhouse gases reduced by the proposed RET
project. The final worksheet is the "Financial Summary" worksheet which is used
to prepare the financial analysis for the RET. Numerous financial indicators
are provided to help support decisions (e.g. internal rate of return, simple
pay back, net present value, etc.). The results are then presented in a simple
project cash flows graph for presentation to key decision-makers. The Financial
Summary worksheet also allows the user to perform a tax analysis and a Clean
Development Mechanism (CDM) type analysis for the individual project.

Related URL
Description: The RETScreen International Renewable Energy Decision Support Centre seeks to
promote the deployment of renewable energy systems by building the capacity of
planners, decision-makers and industry to implement more projects successfully.
The broad aim of the Centre's partners is to foster increased market uptake of
renewable energy technologies (RETs) that reduce the reliance on conventional
energy sources and which help to protect the global environment. The Centre
builds upon the success of the RETScreen International Renewable Energy Project
Analysis Software, which is now being used by more than 21,000 people in 185
countries around the globe and which is growing at 150 new users every week.

The Centre develops enabling tools that allow stakeholders to better analyse
the technical and financial viability of possible projects. These tools make it
easier for people to consider renewable energy projects at the critically
important initial planning stage while significantly reducing the costs of
assessing potential projects. Some of the enabling tools include renewable
energy project analysis software models and manuals; international product and
weather databases; project case studies; and university textbooks. Given the
broad aim of the Centre's partners, the Centre provides these valuable enabling
tools free-of-charge to users around the globe via the Internet and CD-ROM.

The Centre also transfers the knowledge created on a sponsorship or
non-commercial cost-recovery basis via the delivery of distance learning
courses, professional-training seminars and training-of-trainers workshops; and
via an international network of certified RETScreen trainers.

Description: RETScreen International software can be downloaded after registering.

Description: This SSE data set is a synthesis of the World Climate Research
Program/Surface Radiation Budget (WCRP/SRB) shortwave data set (Version 1.1),
ISCCP-C1 (International Satellite Cloud Climatology Project) 3-hourly
satellite data, and ISCCP-C2 monthly mean cloud fraction data. ISCCP provides
global coverage of satellite data on an equal-area grid (6596 cells). Each
cell represents an area equal to that of a 2.5 degree latitude/longitude cell
at the equator (approximately 280 square km). Comparison with data from
approximately 500 ground sites suggest that the satellite-derived values are
generally within 10 percent of surface measured values for most regions of the
world. However, there are two notable exceptions.

Description: Surface meteorology and Solar Energy (release 4) home page:
data for the RETScreen Renewable Energy Project Analysis Software

Description: The RETScreen International Online User Manual is an integral part of the
software. The online user manual is a help file directly linked to each
RETScreen model Microsoft Excel Workbook file and is designed to facilitate
use of the model as quickly and effectively as possible.

In addition to the RETScreen specific information for each cell in the
software, the online user manual also provides background information for the 8
renewable energy technologies in the software, including photographs of typical
projects, an overview of application markets and a description of RET systems,
(also see e-Textbook).

The user automatically downloads the online user manual help file (Version 2000
and higher) while downloading the RETScreen software. The user can also
download the "Manual in PDF Format" (Version 98) or view the "Manual on the
Web" (Version 98).
Service Citation
Originators: Natural Resources, Canada
Title: RETScreen International Renewable Energy Project Analysis Software
Provider: Natural Resources, Canada
ISO Topic Category
Service Provider
RETScreen International Renewable Energy Decision Support Centre, Natural Resources Canada

Service Provider Personnel
Phone: 1-450-652-4621
Fax: 1-450-652-5177
Email: rets at
Contact Address:
RETScreen Customer Support
Natural Resources Canada
1615 Lionel-Boulet Blvd., P.O. Box 4800
City: Varennes
Province or State: QC
Postal Code: J3X 1S6
Country: CANADA
Phone: 301-851-8113
Email: Tyler.B.Stevens at
Contact Address:
5700 Rivertech Court
City: Riverdale
Province or State: MD
Postal Code: 20737
Country: USA

Phone: 1-450-652-4621
Fax: 1-450-652-5177
Email: rets at
Contact Address:
RETScreen Customer Support
Natural Resources Canada
1615 Lionel-Boulet Blvd., P.O. Box 4800
City: Varennes
Province or State: QC
Postal Code: J3X 1S6
Country: CANADA
Creation and Review Dates
SERF Creation Date: 2003-07-14
SERF Last Revision Date: 2011-04-06
[ Update this Record ]
USA dot gov - The U.S. Government's Official Web Portal NASA
Webmaster:  Monica Lyles
Responsible NASA Official:  class="light">Stephen Berrick
Last Updated:  February 2018