other cards use the other data groups (direct readings from data sources).
Main View
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The Grid Meter card illustrates how the grid is used on the site. If the grid AC meter has been configured, the card will appear.
Main View
Current - phases 1-3 - AC_Meter_Grid.V_I1..3
Voltage - phases 1-3 - AC_Meter_Grid.V_L1..3
Total kWh - AC_Meter_Grid.Total_KWH
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Expanded View
Voltage - phases 1-3
Current - phases 1-3
Power Factor - phases 1-3 - AC_Meter_Grid.V_PF1..3
Total kWh
Total kWh Export - If Site_Global.Grid_Power < 0 is true, the text "Export" will appear above the icon (instead of the percentages)
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