Battery
Would a battery earn its place?
See how much energy a battery could realistically move, what that might save, and whether paying for more capacity genuinely improves the result.
No sales pitch. If a battery makes little financial difference, we'll say so.
Annual household electricity use
How would you use the battery?
There's no solar estimate saved yet, so there's no surplus solar to store. Add solar to this model. You can still model cheap-rate grid charging below.
Choose at least one way of using the battery to see a complete result.
Tell us about the battery
Capacity available for everyday use: 9.0 kWh
When does your home use electricity?
Two homes using the same electricity each year can get very different battery results. When that electricity is used matters.
- 00:00 — 1.5% of a typical day
- 01:00 — 1.2% of a typical day
- 02:00 — 1.0% of a typical day
- 03:00 — 1.0% of a typical day
- 04:00 — 1.2% of a typical day
- 05:00 — 2.0% of a typical day
- 06:00 — 4.5% of a typical day
- 07:00 — 7.0% of a typical day
- 08:00 — 6.0% of a typical day
- 09:00 — 4.0% of a typical day
- 10:00 — 3.2% of a typical day
- 11:00 — 3.0% of a typical day
- 12:00 — 3.2% of a typical day
- 13:00 — 3.0% of a typical day
- 14:00 — 2.8% of a typical day
- 15:00 — 3.2% of a typical day
- 16:00 — 5.5% of a typical day
- 17:00 — 8.5% of a typical day
- 18:00 — 10.0% of a typical day
- 19:00 — 9.0% of a typical day
- 20:00 — 7.0% of a typical day
- 21:00 — 5.5% of a typical day
- 22:00 — 3.8% of a typical day
- 23:00 — 2.5% of a typical day
An estimated shape for a typical day, not measured smart-meter data.
How do you pay for electricity?
Your home figures are saved in this browser. When you request a solar estimate, your postcode is sent to Postcodes.io to locate the approximate area, and the resulting coordinates and solar assumptions are sent securely to PVGIS. The battery model may request hourly PVGIS solar data using the same approximate location and solar-system assumptions already used by the Solar page. Battery details and results are saved only in this browser. We don't ask for contact details or use your postcode for sales.
This removes only the battery settings and their hourly solar cache saved in this browser. The saved battery configuration used on the Tariffs page goes with it. My Energy, Solar, EV and Heating are untouched.
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Your saved figures will come with you.