The duration that a battery energy storage system can power a home during an outage depends on several factors, including the battery’s capacity, the home’s energy usage, and whether the system is paired with solar panels. Here’s a general breakdown:
- Battery Capacity: Most home batteries range from about 10 to 18 kWh. A 10 kWh battery alone can typically power essential household systems for 24 hours or more if heating and cooling are not used and energy is managed carefully.
- Energy Usage: The type and number of appliances powered significantly affect how long the battery lasts. Power-hungry devices like central AC can quickly deplete the battery.
- Solar Integration: If paired with solar panels, the battery can be recharged during the day, extending its ability to provide power beyond the initial capacity.
- Variation in Systems: Systems with larger capacities, such as 26 kWh like SunVault, can provide power for longer periods but still depend on energy usage and potential solar recharging.
In summary, a typical 10 to 13.5 kWh battery without solar can power a home for about 8 to 24 hours depending on usage. With solar, the system can last much longer, potentially for several days, by recharging the battery during daylight.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/how-long-can-a-typical-battery-energy-storage-system-power-a-home-during-an-outage/
