Which home battery suits you?
Four short questions, one minute. You get concrete advice on battery size and system, no obligation, and without handing over any personal details.
How do you choose a home battery? The short guide
Step 1: look at your evening use
A home battery is well chosen if it can bridge your evening and night. An average Dutch household uses about 4 to 8 kWh between 5pm and 7am. Hence the rule of thumb: small household 5 kWh, average 10 kWh, high use (heat pump, electric car) 10–15 kWh.
Step 2: match it to your solar surplus
The battery must also be able to fill up during the day. With 10 or more panels (± 4 kWp) you comfortably fill a 10 kWh battery on a sunny day. Less roof? Then choose smaller: a battery that rarely fills up pays for itself more slowly.
Step 3: define your goal
Maximising self-consumption (the answer to the end of net metering on 1 January 2027) requires capacity. Optimising against dynamic hourly prices mainly requires a smart energy management system, and works even without solar panels.
Step 4: check your connection
Single-phase or three-phase determines which inverter fits. You can see the number of main fuses in your meter cupboard; if in doubt, we check it free of charge during the installation survey. Modular batteries can be expanded later, so feel free to start one size smaller.
| Situation | Annual use | Advice |
|---|---|---|
| 1–2 people, apartment or terraced house | < 2,500 kWh | ± 5 kWh |
| Family, average use | 2,500–4,000 kWh | ± 10 kWh |
| Heat pump and/or electric car | > 4,000 kWh | 10–15 kWh |
| No solar panels, dynamic contract | n/a | 5–10 kWh |
Rules of thumb, not promises: the installation survey confirms the final size. Modular systems can be expanded later.