Plan and create simulations of water resources. Access a database with supply information to perform calculations. Estimate water demand, supply, infiltration, crop irrigation requirements, runoff, ecosystem services, groundwater and surface storage, pollution generation, etc.
Download of WEAP 19.2.0.20 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. Weap.exe is the most common filename for this program's installer. This tool was originally created by Stockholm Environment Institute.
WEAP is included in Education Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular versions of the program are 3.4, 3.3 and 3.2. The latest version of WEAP is supported on PCs running Windows XP/Vista/7/8/10/11, 32-bit.
From the developer:
WEAP (Water Evaluation And Planning system) is a program that takes an integrated approach to water resources planning. A database maintains water demand and supply information to drive mass balance model on a link-node architecture. It calculates water demand, supply, runoff, infiltration, crop requirements, flows, storage, pollution generation, treatment, discharge and instream water quality under varying hydrologic and policy scenarios.
You may want to check out more software, such as Agelong Tree, Vector NTI Advance or PHStat2, which might be similar to WEAP.