Energy monitoring: from kWh to consumption per unit
Combine meter readings with production quantities and matching time windows to create meaningful energy indicators.
Read the guideSolutions
Energy monitoring
Understand consumption in its production context.
Energy managers and plant engineers
Collect electricity, gas, steam or water consumption as time series. Relate it to output to examine consumption per unit and the baseline load outside production.
SourceMeter / OPC UA
OPC RouterConnect · Transform · TransferDestinationSQL / InfluxDB
Typical data points
- Instantaneous power (kW)
- Energy meter (kWh)
- Flow, pressure or temperature
- Produced quantity
- Shift and product information
How the flow works
- Connect
The OPC UA Client reads meter and measurement tags.
- Transform
Counter differences are taken; units and scale converted; values placed in the same time window as production.
- Transfer
Timestamped records are written to a time-series destination such as SQL or InfluxDB.
Decisions before connecting
- 01Distinction between kW and kWh
- 02Meter unit and scale
- 03Matching production time window
- 04Meter replacement and allocation rules
Pilot acceptance criterion
Reconcile one day of meter differences with the source; verify that zero-production periods show idle consumption rather than an invalid per-unit value.
Connectors used in this scenario
Connector availability, version compatibility and licence scope are verified for each project.
Implementation guide
Frequently asked questions
Why does the difference between kW and kWh matter?
kW is instantaneous power, kWh is energy consumed over a period. If the meter reports cumulative kWh, consumption is the difference between two readings; summing instantaneous kW values gives a wrong result. Unit and scale must be settled up front.
How do I calculate consumption per product?
Relate the energy difference in a time window to the quantity produced in the same window. Where production is zero, consumption per product is undefined; show idle consumption instead. The energy monitoring guide walks through the steps.
Your next step
Let’s talk about the systems you need to connect.
Share your source, destination and intended outcome. We’ll help define the project scope.