Where each hour's electricity came from, and where the surplus went. Bars above the line supply the house; bars below it are energy leaving — sold to the grid or put into the batteries.
The three sources sum to household demand exactly. That is not a modeling choice: at every instant the meters satisfy solar + grid + battery = load, and on a test of 71 simultaneous readings the median disagreement was 0.000 kW. So the height of the stack above the line is the load, with nothing rounded to make it fit.
A clear summer day has a wide blue middle, a green trough underneath as the batteries fill, and a green evening as they empty again. A winter day is mostly pink. On — the house used — kWh, of which —% never came from the grid.
The buttons above jump to days the record picks out for itself, not days chosen by hand: the longest and shortest come from the computed daylight, the hottest and coldest from the weather station, the rest from the meters. They move as the record grows.
solar battery grid above the line supplies, below it leaves