Have Battery / Electric Vehicle
Turns on the time-stepped energy-balance simulator on top of the solar forecast. Models battery charging and discharging, household load, grid imports/exports, and (under the Charge EV strategies) energy delivered to your EV charger.
What it adds
With this off the calculator shows raw solar production only. With it on, every 15-minute step also computes:
- Household load (from a chosen daily-use profile)
- Battery state-of-charge (capacity, min reserve, charge/discharge limits)
- Grid imports (when load exceeds solar + battery)
- Grid exports (when surplus solar can’t fit in the battery)
- EV charging from solar (under Charge EV strategies)
- Estimated dollar cost / earnings if a price profile is set
Battery and EV inputs
Once on, the panel exposes battery-spec inputs (capacity, minimum reserve, charge / discharge rate, round-trip efficiency) and an export-strategy dropdown. Default and Maximise Charge are battery-only modes; the two Charge EV modes additionally route surplus solar to your EV during a user-defined window and never export to the grid.
Why turn it on
If you already have a battery or EV, this is how you find out whether your current setup is sized right, whether you’re leaking money on grid imports, and whether a different export strategy would do better. If you’re considering buying a battery or EV, this is how you stress-test the case before signing a quote.
Related guides
See Help → Energy balance simulator for a top-level overview, or visit the Amber token guide if you want to plug live retail prices into the simulation.
Closes this tab and returns to the calculator.