Welcome to WEAP's Website WEAP
WEAP is an initiative of the Stockholm Environment Institute.

About WEAP

What's New?
Sample Screens
History and Credits

Using WEAP
User Guide
Videos (YouTube)

User Forum
Members List
Edit Profile

Additional Support
University Courses

About Us
SEI-US Water Resources Program
Please Contact Us

Interested in Energy?
Read about LEAP: SEI's software for energy planning.

Link WEAP and LEAP for combined Water-Energy planning.
Watch a video demo!


Visit the WEAP YouTube channel.

The following video demonstrations include narration in English, and can be played full screen by clicking the icon in the lower right corner of the video once it begins playing. We have many vidoes in Spanish on our YouTube channel.

An example of how to incorporate gender aspects into your model.

A written Tutorial accompanies this video, although the variable names in the video differ from those in the Tutorial.

How to automatically add climate data to your catchments.  Part 3 of 3.

How to automatically add elevation and land use data to your catchments.  Part 2 of 3.

How to automatically delineate catchments and rivers.  Part 1 of 3.

How to easily package and email your WEAP models.

How Key Assumptions can add structure, flexibility and efficiency to your models.

How to quickly and easily find help about all aspects of WEAP.

How to create user-defined variables to extend WEAP's capabilities.

How to choose the best timestep for your WEAP models

Saving time and disk space by choosing which WEAP scenarios and results are calculated

Working with the Versions feature to save and restore previous versions of your models

Demonstration of the Expression Builder

Tips for using and improving your WEAP schematic

Using the ReadFromFile Wizard to explore and import data from CSV files

WEAP Data: Exporting to and Importing from Excel

Searching by Name

Linking WEAP and LEAP (Energy Planning models)

Export WEAP Results to Google Earth

Examples of Google Earth results from WEAP (click to open in Google Earth): Results for each WEAP object, Animated movie of results

MABIA method for catchment hydrology: FAO 56, dual KC, daily timestep

Scenario Explorer