What is IoT Readiness?
The IoT Readiness Score measures how prepared your water infrastructure is to connect to a real-time digital monitoring system — often called the Internet of Things (IoT) or a Smart Water Network.
Think of it as a report card showing how much groundwork has been completed before live sensors, automated alerts, and remote monitoring can be switched on. A score of 100% means the site is fully equipped and connected. Most sites build toward this over time as data is captured and systems are integrated.
This score was developed by Siza as part of the J000600 Digital Twin Programme to give asset owners a clear, objective view of where each site stands on its journey to full digital integration.
Top 3 Reasons We Are Gathering This Data
01
Prevent Failures Before They Happen
Real-time sensor data detects abnormal readings — pressure drops, pump vibration, flow anomalies — and alerts operators before a breakdown occurs. This shifts maintenance from reactive to predictive, dramatically reducing downtime and emergency costs.
02
Optimise Energy & Operating Costs
Water treatment is energy-intensive. Connected systems identify which assets consume more energy than expected, when pumps run inefficiently, and where processes can be automated. Municipalities typically achieve 15–30% energy savings after full IoT integration.
03
Regulatory Compliance & Audit Trail
DWS and water boards require accurate, timestamped records of treatment performance and maintenance activity. A connected asset register provides an automatic, tamper-proof audit trail — reducing compliance risk and simplifying annual reporting to regulators.
How the Score is Calculated
Six components are scored independently and averaged to produce the final percentage.
| Component | What it measures | This site |
|---|
| Geo-referencing | % of assets with RTK GPS coordinates captured | |
| Asset Registration | % of assets fully recorded in the digital register | |
| Condition Data | % of assets with an assigned condition grade | |
| 3D Digital Twin | Matterport / reality capture scan completeness | |
| SCADA / Connectivity | Existing site SCADA infrastructure and network access | |
| Data Integration | SCADA/sensor data actively feeding the digital twin | |
Kingston Vale — Methane / Biogas Plant
Kingston Vale WWTW operates anaerobic digesters that produce methane (biogas) as a by-product of the sludge treatment process. The methane reactors are currently active but the power generation plant is non-operational. IoT instrumentation is essential to safely recommission and optimise this asset.
IoT Sensors Required
Biogas Flow Meters
Measure gas production rate (m³/hr) per digester — critical for energy yield calculations
CH₄ Concentration Sensors
Monitor methane % in biogas — optimal range 55–70% for energy generation
H₂S Gas Detectors
Hydrogen sulphide monitoring — safety critical, corrosive and toxic above 10 ppm
LEL Detectors
Lower Explosive Limit monitors around digester covers, pipe joints and plant room
Digester Pressure Transmitters
Monitor gas cap pressure — prevent over/under pressure events
Temperature Sensors
Digester temperature control (mesophilic ~35°C) — directly impacts gas yield
Sludge Level Sensors
Ultrasonic or radar level measurement per digester
Power Output Meters
kWh metering on CHP engine / generator — measure energy recovery vs site consumption
Steps to Operational
01
Safety Audit
Full structural and gas integrity audit of digesters, pipework and gas holders
02
Gas Leak Testing
Pressure test all pipework and fittings — repair any leaks before proceeding
03
Sensor Installation
Install flow, pressure, temperature, level and gas composition instruments
04
H₂S Scrubbing Check
Inspect and recommission gas cleaning system — H₂S must be removed before CHP use
05
Flare Stack Commissioning
Ensure flare is operational as safety relief before live gas flow begins
06
SCADA Integration
Connect all sensors to site SCADA / IoT platform for real-time monitoring
07
CHP Recommissioning
Mechanical and electrical inspection of generator/engine — OEM service required
08
Regulatory Sign-off
DWS and SANS compliance — atmospheric emissions licence if applicable
09
Operator Training
Biogas plant operations and emergency response training for site staff
10
Live Monitoring Go-Live
Dashboard activation — real-time gas yield, energy output and safety alerts
Safety Note: Biogas is flammable and potentially explosive. All work in and around digesters and the gas plant must comply with SANS 10087 and be carried out by qualified personnel with appropriate gas detection equipment. No hot work without a permit.
