Production line
energy monitoring
Interval energy data for every line or distribution branch, ready to set against what the line produced. The result is an energy-per-unit figure that operations and finance can both trust.
THE PROBLEM
Energy per unit is the number everyone wants and nobody has
Plant managers are increasingly asked for energy intensity: kWh per tonne, per thousand bottles, per batch. Customers ask for it in sustainability questionnaires, and finance wants it to price products properly. The site meter cannot answer it, because every line feeds into the same total.
Lines are usually fed from their own distribution branches, which makes them a natural metering boundary. The harder part is time. A line that ran half a shift at reduced speed should not look worse than one that ran flat out, so the energy data has to be in intervals that can be matched to production counts.
That matching is where most projects stop. The energy sits in one system and the output sits in the MES or a spreadsheet, and nobody joins them.
HOW WE SET IT UP
Meter the branch, keep the intervals, join the output
One metering point per line
We meter at the branch that feeds each line, so one meter captures conveyors, drives, heaters and controls together. Where a line shares a branch, we add sub-meters to separate it.
Interval data for every shift
Each meter reports power and kWh at a fixed interval, so you can see a changeover, a slow start or a stoppage in the energy trace and compare shift against shift.
Bring in the production counts
Energy per unit needs output data from the MES, PLC counters or your production log. RIOD Live can take that data through an API, or our Modbus gateway can read the counters straight from the line PLC.
Reports per line and per product
With energy and output in one place, reports show kWh per unit by line, shift and product. Exports to PDF and Excel carry an audit trail for sustainability reporting.
FROM THE FIELD
Where we have done this
Machinery energy metering
Energy measured per machine in a production environment, so consumption could be tied to equipment rather than spread across the site bill.
AT A GLANCE
Line energy monitoring at a glance
- Measured
- kWh per line and interval power, plus available electrical values from each meter
- Hardware
- Smart energy sub-meters on line branches; RS485 Modbus IoT gateway for existing meters and PLC counters
- Connectivity
- Wi-Fi or 4G from meters; Modbus RTU or TCP into the gateway
- Security
- MQTT over TLS 1.2 from every device
- Integration
- Production counts from MES, PLC or API joined with energy in RIOD Live
- Reports
- Audit trails on every report, PDF and Excel export, AI access to the data through MCP
- Engineering note
- Energy per unit is calculated once output data from the MES or PLC is connected
FAQ
Questions buyers ask us
How do you calculate energy consumption per unit produced?
Meter the electrical branch feeding the line in fixed intervals, collect the production count for the same intervals from the MES or PLC, and divide one by the other. Doing it per shift or per batch shows which products, crews and settings use more energy.
Can line energy data be linked to our MES?
Yes. RIOD Live can receive production data through an API, and energy data can be passed back to your MES or reporting system. Where the counts live in a PLC, our Modbus gateway can read them directly.
Should we meter each machine or the whole line?
For energy per unit, the line branch is usually enough and needs fewer meters. Add machine-level meters where one machine dominates the line, such as an oven or a large drive, and you want to tune it on its own.
What interval should line energy data use?
Match the interval to how you track production. Shift and batch analysis works well with intervals of a few minutes, and the same data rolls up into hourly and daily reports.
Need an energy-per-unit number you can defend?
Tell us how your lines are fed and where production counts are recorded. We will propose the metering points and the data link to your MES.