On-Grid Inverter with Smart Meter System
This system consists of one on-grid inverter and an RMK smart meter.
| No. | Field | Formula or value | Data source | Notes |
|---|---|---|---|---|
| 1, 4 | PV power | pac | Inverter realtime data | |
| 2, 5 | Meter power | totalActivePower | Smart meter realtime data | > 0 feed-in; < 0 import |
| 3, 6 | Load power | No.1 - No.2 | Calculated | |
| 7, 11 | Daily PV energy | eDay | Inverter realtime data | |
| 8, 14 | General load energy usage | No.7 + No.9 - No.10 | Smart meter realtime data & calculated | ① Record the first non-zero data packet of the day; if unavailable, use 0; ② Subtract it from the last non-zero data packet of the day to obtain the day's value |
| 9, 15 | Purchased energy | totalBuyElectricity | Smart meter realtime data & calculated | ① Record the first non-zero data packet of the day; if unavailable, use 0; ② Subtract it from the last non-zero data packet of the day to obtain the day's value |
| 10, 13 | Sold energy | totalSoldElectricity | Smart meter realtime data & calculated | ① Record the first non-zero data packet of the day; if unavailable, use 0; ② Subtract it from the last non-zero data packet of the day to obtain the day's value |
| 12 | Self-consumption | No.7 - No.10 | Calculated | - |
| 16 | Self-sufficiency | No.14 - No.15 | Calculated | - |
Monthly, yearly, and total data are accumulated from the daily data.