The potential savings you can achieve with a home battery depend on various factors, such as your energy consumption, battery size, electricity price, and usage pattern. While exact savings vary, there are several ways a home battery can help you save:

1. Self-consumption of solar energy: With a home battery, you can store the excess energy generated by your solar panels and use it at times when you consume more electricity than your panels produce. This allows you to use more of your self-generated solar energy directly, instead of feeding it back into the grid at a lower rate. This increases your self-consumption of solar energy and reduces your dependence on the electricity grid.

2. Tariff optimization: A home battery allows you to take advantage of tariff structures where the price of electricity varies based on the time of day. You can charge your battery when electricity prices are low, such as at night, and use this energy during peak hours when electricity is more expensive. This can help you lower your energy costs by taking advantage of cheaper rates.

3. Backup power: A home battery can serve as a backup power supply during outages. This means you don't have to use a generator or other emergency supplies. This can save you costs and provide greater convenience and comfort during power interruptions.

4. Grid stability and grid services: Some energy markets offer grid services and incentives to home battery owners. By making your battery available to the grid, for example during periods of high demand, you may receive financial benefits.

The exact amount you can save with a home battery depends on your specific situation. To get a more accurate picture of potential savings, I recommend contacting a certified supplier or a professional installer of home battery systems. They can help you calculate the possible savings based on your energy consumption, tariff structures, and local conditions.