The time a home battery can supply power depends on factors such as the storage capacity of the battery, your household's energy consumption, and the demand for electricity at a given moment.

Storage capacity and consumption

The capacity of a home battery is expressed in kilowatt-hours (kWh), a measure of the amount of energy the battery can store. Capacities range from a few kWh to tens of kWh, depending on the type and model.

For example:

• Storage capacity: 10 kWh

• Daily energy consumption: 20 kWh

• Generation by solar panels: 10 kWh

In this scenario, the home battery can store enough energy to supply power at night or during cloudy hours when the solar panels do not generate energy.

Factors affecting duration

The actual time a home battery supplies power is influenced by:

• Energy consumption: How much electricity your appliances use.

• Efficiency of the battery: How well the battery stores and delivers energy.

• Charge and discharge capacity: The speed at which the battery can be charged or discharged.

• Peak usage: High energy demand can deplete the battery faster.

External conditions, such as seasonal sunlight or power outages, can also affect performance.

Frequently Asked Questions

1. How do I determine how long a home battery can power my house?
   This depends on the battery capacity (in kWh) and your energy consumption. By comparing your daily energy needs with the storage capacity, you can estimate how long the battery can supply power.

2. What factors influence how long a home battery stores power?
   Key factors include your energy consumption, the efficiency of the battery, the charge and discharge capacity, and external conditions like sunlight and peak usage.

3. Can a home battery supply enough power during a blackout?
   This depends on the size of the battery and your power needs during the outage. For basic necessities such as lighting and essential appliances, a battery with a capacity of 10 kWh may be sufficient for several hours to a day.

It is advisable to seek advice from a professional installer or the manufacturer of the home battery. They can help you choose a system that matches your energy consumption and provide an estimate of how long a specific battery can supply power in your situation.