How much does a home battery backup system cost?

Regardless of whether a home battery backup system meets electrical needs, the relatively high upfront cost may be a deterrent for some homeowners. For a medium-sized home, a 48V200Ah 10KWh home battery backup system ranges in cost $10,000, compared with a cost range of $7,000 for fuel-powered generators.

Though the initial cost of a home battery is typically higher than that of a traditional generator, there are other factors that may offset the cost. For instance, after installation, home batteries require little or no maintenance, whereas fuel-powered generators require maintenance and repair costs adding up to about $165 to $485 per year.

Homeowners are also sometimes able to use home batteries to save money on electricity costs. Depending on where you live, the price of utilities may vary based on the time of day and week. To take advantage of this cost variance, simply charge your energy storage battery when the utility prices are low. When prices go up, use the battery system instead of the main grid and watch your utility bill go down.

Solar power is another way to reduce your utility bill with a home battery system. Somtimes wind power also can use to creat electricity to your powerwall batteries. Some batteries can collect and distribute power not only from the electrical grid, but also from solar panels. This combination of electric and solar power can allow a battery to last much longer than it would on stored power alone. They are also more environmentally-friendly than both fuel-powered backup generators and batteries that rely on power from the electrical grid alone.