In July 2017, Midvaal Municipality approved the Proof of Concept, from Inzalo EMS, for the installation of 307 prepaid water metering solutions for Savannah City in Walkerville, a mixed commercial and residential development in Johannesburg South.

The pilot project comprised of five phases:

  • Phase 1: Community Awareness Campaign
  • Phase 2: Water meter audit
  • Phase 3: Installation of prepaid water meters
  • Phase 4: Revenue management, Water usages management and pre-paid vending platform
  • Phase 5: Maintenance, support and monitoring

Once the stand audits were completed, Inzalo EMS installed prepaid meters on the identified stands. Amanzi Meters, from Inzalo Amanzi Meters were used in the project.

Residents were required to purchase tokens from various vending suppliers in and around Savanna City. The installation process allowed Midvaal Local Municipality to pull accurate data from the system in real-time.

On November 27 2017, SFDCs from Inzalo Utility Systems were installed. Collectors – with the radius of 500 meters – were strategically placed, ensuring that the municipality could remotely collect readings from each Inzalo Utility Systems’ Water Management Device (WMD).

The data communicated with the collector include:

  • Serial number of the WMD
  • Total litres used in the current month
  • Total litres usage to date
  • Tamper detection
  • Leak detection
  • Valve status (open/closed/faulty)

With the introduction of the prepaid solution, water consumption in the area saw an instant significant reduction to 600,000 litres per month