Hi everyone,
I’m trying to calculate the total power usage of all devices in my house, including the energy directly consumed from my solar panels. However, the P1 meter offsets energy production and consumption when the solar panels are generating electricity, making it difficult to see the real-time total usage. For example, a variable like Power Produced drops to zero, which makes it challenging to calculate the actual household consumption.
I noticed that Home Assistant’s energy functionality seems to calculate total consumption correctly, but as far as I can see, this calculation isn’t directly accessible for my own custom formulas.
See consumed solar
Available variables from Slimmelezer:
Variable | Value |
---|---|
Current Phase 1 | 2.0 A |
Current Phase 2 | 3.0 A |
Current Phase 3 | 0.0 A |
Energy Consumed Tariff 1 | 14016.576 kWh |
Energy Consumed Tariff 2 | 17536.861 kWh |
Energy Produced Luxembourg | NA |
Energy Produced Tariff 1 | 3110.202 kWh |
Energy Produced Tariff 2 | 6990.543 kWh |
Gas Consumed | 3774.730 m³ |
Long Electricity Failures | 16 |
Power Consumed | 0.000 kW |
Power Consumed Phase 1 | 0.000 kW |
Power Consumed Phase 2 | 0.000 kW |
Power Consumed Phase 3 | 0.082 kW |
Power Produced | 1.063 kW |
Power Produced Phase 1 | 0.069 kW |
Power Produced Phase 2 | 0.022 kW |
Power Produced Phase 3 | 0.000 kW |
Voltage Phase 1 | 229.1 V |
Voltage Phase 2 | 229.2 V |
Voltage Phase 3 | 228.4 V |
Context
I’m trying to calculate Verbruik accurately. When the solar panels generate electricity above the Grid, another stream will appear that merges into the Verbruik category. This will represent the sum of both Grid and Solar availability. On the bottom-right side (beneath Restverbruik), the energy sent back to the Grid will be shown, just like Restverbruik.
My Question:
Are there specific formulas or approaches you recommend for handling this with the DSMR P1 data to calculate the total household usage (grid + direct solar consumption) while solar panels are producing electricity?
I’d greatly appreciate any examples or insights. Thanks in advance!