Why smart meters alone do not reduce losses
Smart meters send consumption data over communication channels. They are mostly installed to automate billing, but they are also expected to reduce losses. At first they do. Then the losses come back.
Why is the effect of a meter rollout temporary?
When meters are replaced, the network is put in order: connections are checked, theft is removed, the diagram is updated. That pays off in the first year. But the network keeps changing:
- new consumers and connections appear;
- lines change and sections are switched between substations;
- meters fail or stop reporting;
- new cases of theft appear.
Within a year or two the diagram and the records drift away from the network, and losses return to their former level.
What does AMI lack?
AMI shows readings and the imbalance but does not explain it. The operator sees an imbalance “within the norm” and does nothing — although theft or meters of another substation may hide behind it. To make loss reduction last, AMI needs:
- a digital network diagram — sections, conductors and cables, where consumers are connected;
- a network calculation — what losses, currents and voltages should be at the current load;
- non-technical loss detection — addresses with an energy estimate, not a percentage per substation;
- metering control — meters assigned to the wrong substation, diagram and record mismatches;
- regularity — the same calculation on every new period, not a one-off survey.
What does this give?
The distribution company gets not a one-off clean-up during the meter rollout but continuous control: new irregularities appear in the target list at the next calculation, and overloaded sections and metering errors are visible at once. Smart meters become a data source for loss reduction, not only for billing.
How does GRID-IN do it?
GRID-IN works on top of the existing AMI, with no new hardware. The network diagram is drawn in the editor on a map or supplied as a file. New periods are uploaded as files or through the API, and each calculation updates the target list, technical losses and network state. More — Low-voltage network monitoring from smart meter data and How to reduce losses in 0.4 kV networks.