Generators vs. TESLA Powerwall: Which is the Better Backup?

Generators vs. TESLA Powerwall: Which is the Better Backup?

A well-designed solar panel system can meet most of the electricity needs for a homeowner, but there are times when auxiliary power is needed. While many energy providers give the option of net metering to cover the cost of electricity used from the local power company, it’s not available to all solar homeowners. Having a backup supply of electricity can provide power during outages.

Let’s face it, emergencies happen. For example, backup power keeps the lights on and your refrigerator running in a blackout scenario. The two main ways to achieve backup power are with a generator or a solar battery for a solar panel system.

While generators have been a standard backup for grid outages for decades, the TESLA Powerwall is now a more viable option for homeowners to consider. Here are the factors to consider:



The “whole-house” generators needed to power the home over time are more prominent than their portable cousins – roughly the size of a typical HVAC unit. But that can vary depending on the size of your house and its electrical needs. 

The TESLA Powerwall is a compact, all-in-one construction that features versatile mounting options for indoor or outdoor spaces. Typically located in a utility room or garage, the larger box is slightly smaller than a refrigerator and stores excess energy not used throughout the day. In addition, the smaller box features intelligent software that gives homeowners the option to control the utilization of their stored solar energy.

Advantage: TESLA Powerwall



Whole-house generators usually make less of a racket than portable ones, but they can still be loud. For the quietest ones, imagine a motorcycle engine running nonstop. TESLA Powerwalls’ are silent.

Advantage: TESLA Powerwall



Generators run on natural gas, gasoline, or liquid propane; all fossil fuels pollute the air. TESLA Powerwalls’ run on stored-up solar power and reduce your carbon footprint.

Advantage: TESLA Powerwalls’



A generator can cost anywhere from $2,000 to $30,000, though most are at the low end of that range. After installing a generator, the owner still has to pay for regular maintenance and fuel. Solar batteries have little or no maintenance costs, and the fuel is solar energy from the sun. In addition, there’s an unlimited amount of sunlight, so the battery can keep recharging – and powering your home. On top of that, the U.S. government offers incentives for buying a solar battery storage system; usually, there are no tax incentives for buying generators.

Advantage: TESLA Powerwall


As you can see, the benefits of the TESLA Powerwall significantly outway traditional generators. In conclusion, you save and store energy and experience less work and more comfort.