What capacity does my battery need?

It depends on the household’s energy consumption and the size of the solar array. On average, a household in the Netherlands has an energy consumption of 3500 kWh per year. If the solar panel system produces about 3 kWh per day, a household needs a battery capacity of about 11 kWh. However, it is always advisable to consult a specialist for an accurate calculation and recommendation.

Based on recent data research with AI, we see that batteries with a capacity of about 12 to 20 kilowatt-hours (kWh) are currently the most sold in connection with solar panels. This is because they offer a good balance between capacity and cost and are also suitable for average households. However, the demand for larger higher capacity batteries is increasing, especially for larger solar panel systems and for energy storage for businesses.

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