Simulate solar, battery, and EV charging impacts on your energy costs.
No window → charges opportunistically from daytime solar surplus only.
Charge only from surplus solar within the window (never grid); the car may end below target. Forced on when no window is set.
Off-peak covers the remainder of the day (every day).
Peak applies on weekdays only; weekend peak hours are billed at the off-peak rate (blended across the season's days).
Credit earned per kWh exported to the grid.
Fixed connection fee, charged every day regardless of usage.
Chart shows a single charging day; the cost summary below is amortised across the week.
Energy flows for the modelled season day, attributed to the rate that applies in each period. Net = import cost − export credit + daily supply charge.
| Period | Rate $/kWh | Gen kWh | Export kWh | Export $ | Import kWh | Import $ | Net $ |
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