Using the Tesla Powerwall as UPS for Your Home

Using the Tesla Powerwall as UPS For Your Home

Your home is your safe haven. So, when a power outage occurs, your lights won’t turn on, your fridge turns off, and other appliances are unusable, the situation can be scary. An Uninterruptible Power Supply (UPS) to keep everything in your house powered is extremely beneficial in cases like this.

The Tesla Powerwall battery will keep your home’s power running even if your main power supply fails. So, how much power can a Tesla Powerwall store in the event of an outage? This system stores up to 13.5 kWh for 24/7 outage protection.

Discover how the Tesla Powerwall works, as well as some of the system’s most impressive specs and features below.

How Does The Tesla Powerwall Work?

The Tesla Powerwall stores surplus energy that your home can use in the event of an outage. During the day, the Powerwall charges using the power of the sun since the solar panels are able to create more energy than your home is consuming.

If an outage does occur, the Tesla Powerwall battery will detect and automatically switch over to work as your home’s source of power, so you can operate your appliances with absolutely no delay or disruption.

However, the Tesla Powerwall can be used as more than just a back-up for potential outages. You can also use it to power your home at night using the power that was produced during the day.

Additionally, the Tesla Powerwall comes equipped with the Back-up Gateway 2, giving the Powerwall the ability to provide an uninterruptible power supply. Unlike a typical solar power system, the Tesla Powerwall uses its Back-up Gateway 2 to connect to the grid, allowing the Powerwall to continue storing solar energy even during a power outage.

Essential Load Back-Up vs. Whole Home Back-Up

The Tesla Powerwall offers two back-up options: an Essential Load Back-Up or a Whole Home Back-Up. The option you choose depends on your personal preferences and the electronics you wish to back up. With a Whole Home Back-Up, you will install the number of Tesla Powerwalls recommended by the expert installer. This type of back-up will ensure that every appliance in your home is powered by the Tesla Powerwall.

On the other hand, with the Essential Load Back-Up, you will typically install just one Tesla Powerwall to power your most important electronics, such as your refrigerator, computer, and select outlets. This type of back-up is an excellent option for those who want to opt for a more economical choice.

What are The Tesla Powerwall’s Most Notable Specifications and Features?

Apart from providing continuous power for your home and offering protection from potential outages, the Tesla Powerwall offers many other impressive specs and features as well. Some of these beneficial features include:

Compact Size

The Tesla Powerwall comes in a convenient, compact size, making it easy to install virtually anywhere you want in your home without creating clutter. The Tesla Powerwall’s dimensions are as follows:

  • 45.3 inches in length
  • 29.6 inches in width
  • 5.75 inches in depth

Kid-Friendly Design

For those with kids or pets, you will want to make sure anything that you are installing on your property will keep your loved ones protected. The Tesla Powerwall is designed with safety in mind and makes sure to cover all wires and hot vents, so nothing potentially harmful is exposed.

Seamless Power

The Tesla Powerwall outputs 5kW of continuous power and has a peak of 7kW of power.  Furthermore, with pure sine wave output, the Powerwall runs more smoothly and quietly, with a low harmonic distortion.

Instant Back-Up

The Tesla Powerwall offers instant back-up in the event of an outage. Faster than the average generator, the Tesla Powerwall will immediately detect an outage and generate power to your home. In fact, the Powerwall will spring into action so quickly that you won’t even notice a power disruption.

Customizable Power Level

Depending on the size of your home or the number of appliances you need to power, you may need more power storage than the allotted 13.5 kWh. In order to meet your specific needs, you can use up to ten Tesla Powerwalls together for up to ten times the power.

Efficient Energy Use

The Tesla Powerwall efficiently uses the energy it stores. In fact, this UPS has a 90% round trip efficiency, meaning most of the energy is preserved in storage. Furthermore, the battery’s 100% depth of discharge allows the Powerwall’s power to be depleted entirely, with no lasting adverse effects.

Mobile App Integration

The Powerwall can be integrated with Tesla’s mobile app. The app’s intuitive user interface makes it easier for users to operate and understand their Tesla Powerwall system. Furthermore, this mobile app integration allows you to:

  • Keep track of your home’s energy creation and consumption
  • Set setting preferences for outage protection, savings, and more
  • Control your systems and setting remotely
  • Receive severe weather alerts that may cause power disruptions in your area

Durable Structure

The Powerwall can be installed either indoors or outdoors and is extremely durable to environmental stressors. For one, the Tesla Powerwall can endure extreme temperatures ranging from -4 degrees Fahrenheit to 122 degrees Fahrenheit thanks to its liquid cooling feature. Furthermore, the system is both water and dust resistant. 

Minimalist Design

The minimalist design of the Tesla Powerwall looks modern and elegant, so it will not detract from your home’s interior styling, nor will it be an eyesore to the neighbors, should you decide to install it outdoors.

Time-Based Control

The Tesla Powerwall offers a Time-Based Control feature to help you save on costs. The feature works by generating an energy forecast and identifying your energy-use patterns. It also observes the solar production in your location based on the seasons. With these forecasts, the Tesla Powerwall can see what times you tend to use the most energy to accurately predict ideal charging and discharging times that help you save money on your monthly energy bill.

What Benefits Does The Tesla Powerwall Offer?

With a smart, modern design and efficient features, the Tesla Powerwall provides many benefits. Some of these benefits include:

  • Lower Carbon Footprint: By using solar power storage, you will lower your home’s carbon footprint. Furthermore, with features like Time-Based Control, you can optimize energy consumption and increase your home’s sustainability.
  • Easy Installation and Maintenance: Due to the compact size and ability to be either floor or wall-mounted, the Tesla Powerwall is simple to install. What’s more, the system is 100-percent automated, and there is no required maintenance after installation.
  • Peace of Mind: This system will not only offer you comfort by protecting you against potential outages – but the Powerwall also provides additional layers of peace of mind as well. For one, the Tesla Powerwall comes with an extensive ten-year warranty, so you can breathe easy knowing you’re protected. What’s more, the Tesla Powerwall meets both US and international safety and EMI standards, providing you with an added easement.
  • Energy Independence: With the Tesla Powerwall, you will have the ability to rely less on the grid, giving you more energy independence.

Does Tesla Offer Discounts on Solar or Powerwall?

Tesla solar panels are already the lowest price-per-watt solar panels on the market, but are there any other ways to save money when ordering?

In short, the only way to get a discount on Tesla solar panels is by using an existing Tesla owners “referral link” when ordering your Tesla solar panels.

Tesla has did this same “referral program” concept with it’s vehicles and essentially it allows new customers to get a discount on their purchase by using an existing customers personal referral link.

In regards to Tesla solar discounts, using a Tesla referral link when ordering will save you $300 off solar panels or $500 off solar roof.

The referral discounts are typically only available for a limited time before Tesla stops offering the discount, so take advantage of the savings while you can.

tesla solar panel discount


With 13.5 kWh of power, 24/7 outage protection, and a wide variety of other beneficial features, the Tesla Powerwall is a great option to use as an uninterruptible power source. By choosing the Tesla Powerwall as a back-up energy source for your home, you will have peace of mind knowing that your house and appliances will always have the ability to function in the event of an outage.

Solar Discounts:


The articles here on are created by Greg, a Tesla vehicle and Tesla solar expert with nearly half a decade of hands-on experience. The information on this site is fact-checked and tested in-person to ensure the best possible level of accuracy.

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