Track TEDAŞ day/peak/night periods in real time through the transformer used as the electricity main meter. With the sub-meter hierarchy, the risk of double counting is zero and cost allocation is accurate.
When the transformer and sub-meters are summed together, energy is counted twice; cost figures become inflated.
Which meter represents the main consumption, and which the sub-consumption? Allocation cannot be done without establishing a hierarchy.
Without separating day/peak/night consumption, tariff optimization and budget calculations remain inaccurate.
If the energy data in the system is not compared with the TEDAŞ bill, losses and theft cannot be detected.
The transformer marked as is_ana_sayac=TRUE is the single source for all kWh, cost and projection calculations.
The floor, apartment or tenant meters under the transformer are defined hierarchically; they are not included in the SUM.
Day/peak/night consumption is calculated from np_saatlik_ozetler according to the actual TEDAŞ tariff periods.
The external bill kWh is compared with the system measurement; if the difference exceeds 3%, a loss/theft alert is raised.
Monthly kWh trend and cost breakdown across day/peak/night periods — a clear view for tariff optimization.
Multiple main transformers can be defined; each is tracked as a separate cost center.
Since not every panel in the field may have an energy analyzer, the transformer output measurement reflects the facility's actual total consumption. If summed together with sub-meters, gaps remain for the missing analyzers and produce errors.
Argus EMS, using the hourly readings in the np_saatlik_ozetler table, splits consumption according to TEDAŞ's current day (06:00–17:00), peak (17:00–22:00) and night (22:00–06:00) periods. The period hours are configurable.
Each transformer can be marked as is_ana_sayac=TRUE. The sum of all active main meters is used on a per-project basis. A separate dashboard and cost report can be viewed per transformer.
Yes. Sub-meters are used for tenant/apartment billing but are excluded from the total energy cost calculation. This is the most common structure in shopping mall and office plaza scenarios.
| Main Meter | Transformer (is_ana_sayac=TRUE, cihaz_kategori=TRAFO) |
| Protocol | Modbus TCP / RTU |
| Period Calculation | TEDAŞ day/peak/night — on an hourly basis (np_saatlik_ozetler) |
| Double Counting Prevention | Sub-meters automatically excluded from the SUM |
| Offline Buffer | 14 days — monthly bill calculation remains complete |
Accurate energy cost calculation and TEDAŞ bill comparison without double counting risk.
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