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Battery storage makes sense in order to be able to use the electricity from one's own solar system more efficiently. Electricity not consumed during the day can also be used in the evening through intermediate storage in the battery.
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Yes, the BSLBATT Lithium solar battery can be combined with any standard home solar system.
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The storage capacity of the Powerwall battery is adapted to your needs. Basically, the storage should be large enough to supply a single-family home with solar power from evening until the next morning. For an average four-person household with an annual energy consumption of about 5,000-kilowatt hours (kWh), a size of 7 kWh is usually sufficient.
Calculation: 5,000 kWh / 365 days = 13.7 kWh per day and about 7 kWh of that for the night.
To choose the right storage size, it is recommended to determine the electricity demand of your household as accurately as possible. For this purpose, you should consider the energy consumption of the past 5 years as a basis and calculate the average. It is also important that you take into account possible changes. Family addition, new heating system, electric car, etc.
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In a DC system, the direct current is stored directly in the batteries and only converted to alternating current when it is drawn. Since these systems always have an integrated inverter with defined outputs, only a certain PV system can be connected here.
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Home battery storage systems in the low-voltage range have an output voltage of 48 volts. Low-voltage battery storage technology has a very mature and field-proven technology. It operates at the standard voltage levels of system technology. BSLBATT offers a wide range of components in the 48-volt range. The interconnection takes place in parallel and is scalable to high capacities.
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A Powerwall battery with an emergency power connection can supply devices with power in the event of a power failure. In this variant, the connection is usually made by manually activating the integrated emergency power connection. The available power is usually limited to 1-phase consumers in the house.
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Backup power offers to supply consumers with the in-house power from the Powerwall battery in case of a mains failure. The switchover takes place automatically after approx. 5 - 20 seconds, usually via a changeover device, and involves additional installation work. The backup power grid can be set up as 1-phase or 3-phase.
