Tesla has taken the world by storm by launching the lithium-ion battery system, Tesla Powerwall. It is one of the best batteries you can use with your solar panels to enjoy an uninterrupted energy supply. So, you can power your home efficiently without depending upon costly home battery banks.

The Tesla Powerwall can be recharged with solar energy and also by the electric grid. It helps to run your appliances even during power surges or outages. Plus, you can use it for indoor and outdoor purposes, so it is an all-rounder!

If you are interested in upgrading your battery system and know all about Tesla Powerwall, this guide will walk you through the details.

What is Tesla Powerwall?

The Tesla Powerwall home battery system products enhance any residential battery storage and dependence. The devices offer better control over your home’s energy storage and usage, allowing you to cut down your electricity bills.

The battery can easily power itself up during the day using your solar panels and offer you energy during the night. Such a clean energy source also helps reduce your carbon footprint, keeping your surroundings protected.

How Does it Stand Apart?

The Telsa Powerwall batteries are way more efficient than standard batteries in the market. With high storage capacity, these batteries can store greater loads of energy and offers excellent backup power.

Some important highlights of these batteries include –

  • Tesla’s three battery storage system models – Powerwall 1, Powerwall 2, and Powerwall +. While the Powerwall 1 is discontinued, the other two models are readily available.
  • Powerwall batteries come with a Tesla mobile app that lets you monitor and control power usage. It allows you to reach your off-grid energy-saving goals easily.
  • The battery reduces your dependence on the grid, helping you stabilize the power consumption during peak hours, such as nighttime.
  • The latest version of the model, the Powerwall +, is a significant improvement over previous models. It combines the functionalities of a solar inverter, a Backup Gateway, and the Powerwall 2.

How Does the Tesla Powerwall Work With Solar Panels?

Tesla PowerwallWhen your solar panels absorb sunlight, it is converted into energy for powering up your home. It is transferred to all your appliances to run them, and the excess energy is stored in the Powerwall battery. And this is where the magic begins!

After the Powerwall battery gets charged all day, it is well-prepared to provide you power when the sun goes down. When it is fully charged, the additional power might also be sent back to the utility grid.

So, when there is not enough sunlight or the utility grid has some issues, the extra energy generated is stored in the Powerwall comes to use. This is beneficial, especially during a power outage.

Powerwall without Solar Panels

In some areas, electricity rates can vary all day long. Powerwall can help charge your home when the utility rates are low and discharge when it is higher. This way, you automatically save electricity costs and enjoy better power consumption.

Also, Powerwall batteries can detect electrical outages and offer excellent backup power, working as a highly reliable power source.

Basic Powerwall Arrangement

In general, Powerwall batteries are installed with solar panel systems. In any Powerwall battery system installation, you can place up to 10 Powerwalls, including a combo of Powerwall and Powerwall +. The Powerwall + offers additional facilities enabling simple installations with better solar integration.

The Powerwall+ battery also lets you install it using less equipment. It is designed in such a way that powering heavy appliances becomes easy. In addition, direct solar integration enhances the recharging process, providing you more support during an outage.

Specifications of Tesla Powerwall

The Tesla Powerwall released in 2016 has an excellent power storage capacity and comes with an advanced battery inverter/charger. It gives the device greater efficiency and flexibility to store and stabilize the generated power.

Tesla’s latest edition, the Tesla Powerwall +, brings you all the key features of the Powerwall 2 with an integrated inverter and better backup capabilities.

These qualities make Powerwall + a comprehensive residential storage system to power your home. Let us check out the key features of both energy storage systems to understand them better.

Tesla Powerwall 2: Key Specifications

  • It has a storage capacity of 13.5kWh and offers a 100% depth of discharge
  • A continuous on-grid power rating of 5.8 kW and a 7kW peak output rating
  • It is compatible with all grid-tied solar inverters
  • It comes with an advanced liquid cooling system
  • It is an AC-coupled battery having an integrated charger/inverter
  • Tesla offers a warranty of 10 years

Tesla Powerwall +: Key Specifications

  • It has a usable capacity of 13.5kWh and offers a 100% depth of discharge
  • A continuous on-grid power rating of 5.8 kW and a 7.6 kW peak output rating
  • It is compatible with integrated solar consisting of 4 MPPT devices
  • It comes with an advanced liquid cooling system
  • It is an AC coupled battery having an integrated charger/inverter along with another solar inverter
  • This device also offers you a warranty of 10 years.

While both the batteries have an integrated cooling system, also called liquid thermal control, both are easy to install. Moreover, you can position them on the floor or wall of your home. Wall-mounted Powerwall systems are more popular.

You can control both the Tesla Powerwall 2 and Powerwall + solar power batteries using the mobile app. This Tesla app is user-friendly and provides you total control over your battery usage in real-time.

Benefits of Tesla Powerwall

You can consider Tesla Powerwall as the most advanced battery storage system, which you can customize as per your needs. With various modes and functionalities, Tesla Powerwall 2 and Powerwall + are an investment of a lifetime.

Let us take a closer look at the advantages of using the Tesla Powerwall.

Uninterrupted Power Supply

The Powerwall system comes with a Self-Powered mode, which efficiently stores solar energy that you do not use throughout the day. This lithium-ion battery can use the stored solar energy to light up your home at night.

If you use more solar energy than the solar panel system and Powerwalls can offer, the battery will fetch power from the grid. Likewise, excess energy will be sent back to the utility grid.

The functionality doubles the energy used to power your home and helps you become energy independent.

Excellent Backup Power

Tesla Powerwall LogoEven if the grid is down or fluctuating, Powerwall will continue powering your home with its backup power reserve. If your area is prone to power cuts, you can optimize the battery to have a higher reserve percentage.

After the power outage or electrical complications are fixed, the Powerwall might charge above the reserve setting.

If you wish to use the battery as a backup gadget, you can set the backup reserve to 100% and select the Self-Powered mode.

Complete Residential Protection

Many customers living in disaster-prone regions worry about their solar power consumption. It is because when a storm or a cyclone hits their home, they often do not have an energy protection system.

With the Tesla Powerwall by your side, you can stay worry-free! The Powerwall battery has a Storm Watch mechanism that connects to the National Weather Service to know about abusing stones or turbulence.

If it detects any calamity, it pushes the power reserve setting of the battery so that it can charge completely. So, even if a storm hits your home, you will still have backup power.

Cost-efficient Charging

The battery helps cut down electricity bills by discharging and charging itself at appropriate times. You can set up the battery according to the varying electricity charges throughout the day.

Using Powerwall’s Time-Based Control, you can adjust the energy storage and consumption, saving much money.

So, when electricity rates are at their peak, your stored energy will power your home and reduce bills. However, check with the utility grid provider to see if they support this kind of customization.

Energy Consumption Monitoring

Tesla Powerwall offers you maximum control over your battery system via their Tesla app. Using this app, you can see how the power wall, grid, and solar panels generate electricity for your home.

You can also check the history of your solar system’s energy conservation and production Energy screen. It also gives you information on daily and monthly energy usage.

The Impact screen on the app offers vital information about your energy consumption. You can check details about the last power outage, energy dependence of your home, and overall battery performance.

Tesla Powerwall Installation

A Tesla certified electrician or someone experienced in installing a Powerwall usually takes care of the installation process. The Tesla Powerwall 2 or Powerwall + can be wall-mounted or positioned on the floor. It can be installed inside or outside and does not need too much storage space.

The installation process usually takes about a day, preferably with your solar panels. Installing it is safe and simple and does not require any safety setbacks or clearances. Moreover, it has a dustproof and temperature-resistant covering, making it ideal for indoor and outdoor installation.

Necessary installation points to remember –

The Powerwall system will consist of a Powerwall, a Tesla Gateway, and supporting hardware. This can include a solar inverter, meter, and the main solar panel.

Both the Gateway and the Powerwall can consist of several cable entry points for easier installation.

For wiring the Powerwall system, the electrician might install a backup gateway and connect it to the utility meter and electric panel.

Downloading the installation manual before starting the process will speed things up.

You can also install the system in your home’s basement or garage.

Frequently Asked Questions

Is Tesla Powerwall a Good Investment?

Tesla Powerwall is an excellent investment due to the following reasons –

  • Allows an eco-friendly form of energy consumption, reducing your carbon footprint
  • Tesla Powerwall 2 installation is a simple process and requires very little maintenance
  • It comes with a weatherproof battery that you can install outdoors if required
  • It is completely safe with no complicated electrical wires or sockets
  • The liquid cooling system maintains the internal temperature of the battery, enhancing its lifespan.

How Long Will a Tesla Powerwall 2 Last?

The number of hours Tesla Powerwall will last will depend on electricity consumption and the amount of charge left. With a usable storage capacity of 13.5 kWh, Powerwall can run most of your appliances for about 12 to 24 hours.

If there is a blackout and you are powering more electronics, this period might reduce. As a rule of thumb, a fully charged Powerwall battery can keep things running for about 24 hours non-stop.

What is the Lifespan of a Tesla Powerwall?

The Powerwall battery is highly efficient and offers long-lasting performance. However, like any other battery, it requires some maintenance and recharging from time to time.

For commercial and residential purposes, this battery runs for 3-10 years. In any Powerwall system, you need to change the battery every 5 to 6 years to maintain the capacity and performance.

Most Powerwall batteries come with a warranty of 10 years but can last up to 20 years with little maintenance. It all depends on how you handle it.

How many Powerwalls will I Need?

The number of Powerwalls you will need will depend upon your consumption. For most users, one battery is enough. However, for large residential or commercial properties, you might need 2 or 3 Powerwalls.

Summing Up

The Tesla Powerwall is becoming one of the front runners of the solar battery market. Its durability and power backup facilities make it a firm favorite among households and offices. Moreover, the Tesla Powerwall 2 and Powerwall + can charge within 2 to 3 hours, increasing the convenience.

Offering outstanding customization, you can enjoy charging priority modes, including backup, self-powered, time-based control, and cost-efficiency. Nevertheless, be it an on-grid or off-grid system, consult an experienced user or electrician before installing the battery.

Tesla Powerwall image by Wikimedia Commons User: Jzh2074 / CC BY-SA 4.0