# Virtual Process Data
Currently the inverter API is missing some interessting values, which are now provided by the class `ExtendedApiClient`. These virtual items are computed by means of other process items.
All virtual process items are in the module `_virt_`.
Note: This feature is experimental and might change in the next version.
| process id | description |
|-----------------------------|-------------|
| pv_P | Sum of all PV DC inputs (from `devices:local:pv1/P` + `devices:local:pv2/P` + `devices:local:pv3/P`) |
| Statistic:EnergyGrid:Total | Total energy delivered to grid (from `Statistic:Yield:Total` - `Statistic:EnergyHomeBat:Total` - `Statistic:EnergyHomePv:Total`) |
| Statistic:EnergyGrid:Year | Total energy delivered to grid (from `Statistic:Yield:Year` - `Statistic:EnergyHomeBat:Year` - `Statistic:EnergyHomePv:Year`) |
| Statistic:EnergyGrid:Month | Total energy delivered to grid (from `Statistic:Yield:Month` - `Statistic:EnergyHomeBat:Month` - `Statistic:EnergyHomePv:Month`) |
| Statistic:EnergyGrid:Day | Total energy delivered to grid (from `Statistic:Yield:Day` - `Statistic:EnergyHomeBat:Day` - `Statistic:EnergyHomePv:Day`) |
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