Smart control plans how a solar installation operates according to economic benefit. But how is the benefit of each instruction calculated, and what do the amounts shown in the application mean?
The displayed values are indicative. They are based on inverter data recorded at five-minute intervals, which is not as precise as measurements from the distribution meter.
How individual instructions are evaluated
| Instruction | Evaluation principle | Illustrative example |
|---|---|---|
| Normal operation | The baseline used to compare other instructions. | The benefit is CZK 0. |
| Export blocking | Prevents export to the grid when the selling price is unfavourable. | Preventing the export of 25 kWh at −CZK 1.50/kWh represents a benefit of CZK 37.50. |
| Battery blocking | Demand is temporarily covered by cheaper grid electricity. Battery energy is retained for a more expensive period. | For 5 kWh bought at CZK 2/kWh instead of a later CZK 6/kWh, the difference is CZK 20. |
| Selling solar generation | Evaluates the revenue from controlled sales of solar energy. | Selling 4 kWh at CZK 6.50/kWh generates CZK 26. |
| Grid charging | Compares charging costs with the purchase price at the time the energy is subsequently consumed. | For 5 kWh at prices of CZK 2/kWh and CZK 4/kWh, the difference is CZK 10. |
| Discharging to the grid | Evaluates the revenue from electricity sold from the battery. | Selling 2.2 kWh at CZK 4.15/kWh and 3.8 kWh at CZK 5.20/kWh generates CZK 28.89. |
The selling price takes the trader’s fee into account. Enter this fee in the installation settings to ensure correct evaluation.
Sales revenue is not the same as net savings. These examples explain the calculation principle; they do not guarantee a result for your installation.
