Botswana Training Workshop June 2024
  • Tutorial 3: Planning for water resilience in Botswana.
    • Introduction
    • Botswana National Water Resource System Model (Training version)
    • Baseline system performance
    • Activating the Chobe-Zambezi Transfer
    • Implementing the Walvis Bay transfer
    • Implementing the Lesotho Highlands Transfer
    • Reducing Non-Revenue Water
      • Calculating domestic demand within the model
      • Implementing a NRW demand loss reduction
    • Implementing the Chobe and NRW losses reduction
    • Additional exercises
  • Tutorial 4: Adding new infrastructure in the Botswana national model
    • Adding Mosetse dam
    • Adding a demand
    • Adding a water treatment works with losses
    • Adding a source representing groundwater
    • Additional Exercises
  • Tutorial 5: More advanced modelling
    • Background on Evaporation and Precipitation on Reservoirs
    • Adding reservoir bathymetry (Area)
    • Adding reservoir bathymetry (Level)
    • Adding monthly evaporation and rainfall
  • Tutorial 6: Allocation penalties
    • Exercise 1a Two nodes
    • Exercise 1b Two demands
    • Exercise 1d Minimum Flow Properties
    • Exercise 2a Simple system with reservoir draw downs
    • Exercise 2b Simple system with overflow
  • Tutorial 7: Additional exercises with allocation penalties and control curves
    • Additional exercises using allocation penalties and control rules
    • Exercise to implement demand reductions when reservoirs levels are low
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  1. Tutorial 3: Planning for water resilience in Botswana.

Implementing the Chobe and NRW losses reduction

PreviousImplementing a NRW demand loss reductionNextAdditional exercises

Last updated 9 months ago

Supply options can be implemented together with demand managment options to increase system resilience. In this exercise the Chobe-Zambezi transfer will be activated together with NRW loss reduction to 20%.

  1. Clone the Chobe scenario creating a new scenario called "Chobe+NRW 20%".

  2. Click on the Parameters tab

  3. Search for the word NRW

    Change the Gaborone DC NRW factor to 1.25 as follows:

    {
	"type": "ConstantParameter",
	"value": 1.25
}

    and click on .

Do this for the Mochudi DC NRW and Romotswa DC NRW parameters.

  1. Run this scenario and compare the simulated_volume in the Gaborone reservoir in this scenario and the Chobe and NRW 20% scenarios.

The Chobe transfer when combined with NRW loss reductions to 20% results in eliminating deficits in Gaborone (green scenario). Demand in Gaborone is lower when NRW reductions are implemented because less water is required to put into the distribution system due to the lower losses.