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


About WEAP

Home
Why WEAP?
Features
What's New?
Sample Screens
Demonstration
Publications
History and Credits

Using WEAP
Download
Licensing
User Guide
Tutorial
Videos (YouTube)

User Forum
Discussions
Members List
Edit Profile

Additional Support
Training
University Courses
Collaboration

About Us
SEI-US Water Resources Program
Please Contact Us

LEAP
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!
   

User Forum

All Topics | Topic "Annual Activity level and Monthly Variation"
Log in to post new messages or reply to existing messages.
 
Author Message
Eng. Hong Anh Sai

Subject: Annual Activity level and Monthly Variation   
Posted: 1/7/2014 Viewed: 23863 times
Hi All. I have a demand site (a branch) with time horizon ( 1962-2020) ,
1: from 1962-2010 with the same Monthly Variation
2: from 2011-2020 with a different Monthly Variation.
when i input all data above ( with horizon 1962-2020).WEAP can not run with whole time from 1962-2020. However when i divide time horizon into two periods ( 1962- 2010 and 2011-2020), Weap can run with each period.

my question: how to run with the whole time horizon 1962-2020 with different Monthly Variation for each period? please help me.
Mr. Jack Sieber

Subject: Re: Annual Activity level and Monthly Variation   
Posted: 1/8/2014 Viewed: 23854 times
Using the "If" function, you can specify a different monthly variation for different years. For example, this expression will use one variation for years on or before 2010, and another for years 2011 and later:

If(Year <= 2010,
MonthlyValues( Jan, 7.06, Feb, 7.31, Mar, 7.85, Apr, 8.41, May, 8.89, Jun, 9.64, Jul, 9.81, Aug, 9.77, Sep, 8.84, Oct, 8.01, Nov, 7.37, Dec, 7.04 ),
MonthlyValues( Jan, 0, Feb, 0, Mar, 5.97, Apr, 10, May, 15.3, Jun, 17.8, Jul, 20, Aug, 17.1, Sep, 10, Oct, 3.83, Nov, 0, Dec, 0 ))

Jack
Topic "Annual Activity level and Monthly Variation"