A home battery pays for itself through the difference between what you receive for exported power and what you pay to buy it back. The bigger that difference, the shorter the payback period.
When it becomes interesting
With an existing solar installation that has a clear surplus, and for a household that uses a lot of power in the evening. Without panels, a battery isn't profitable in most cases.
Incentive
Incentives exist for home batteries, but their conditions change regularly. When preparing the quote we check what applies at that moment, so you don't count on an amount that has since been abolished.