Power wall: What does it mean for electric car owners
Time:2024-01-12
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Tesla has been driving the development of electric vehicle technology. In recent years, they have also been optimizing and developing their infrastructure to match the popularity of their products. Their aim is to simplify usability as much as possible.
For many people, Tesla is their entry point into electric vehicles. They are currently the most popular electric vehicles on sale and show no signs of slowing down. Tesla has provided many users with the first experience of owning an electric car, and in order to successfully achieve this, home charging is an important component of this lifestyle change.
Tesla launched the Power Wall in 2015, which is an energy storage system that utilizes solar energy. It comes at the right time, as energy prices continue to soar, Tesla and its customers can benefit from the power wall as an additional source of energy. Here is some information about Tesla‘s power wall and its significance for electric vehicle owners.
What is a Tesla power wall?
Power wall is a household energy storage product produced by Tesla Energy, a subsidiary of Tesla. It can store electrical energy and serve as a backup power source.
The power supply was initially launched in 2015, and Tesla began mass production of the power wall in early 2017, only at the newly built Nevada factory at the time. By May 2021, Tesla had installed 200000 power walls. Essentially, power wall is a branch of all lithium-ion batteries that Tesla has been committed to providing power for its electric vehicles.
As early as 2012, Tesla began researching prototypes of battery packs and hoped to apply the technology they had been extensively researching to their home energy storage solutions; Power wall. Affected by the COVID-19, the company has a backlog of more than 80000 power wall orders due to the global shortage of microchips. Currently, Tesla has two Power Wall options to choose from: Power Wall 2 and Power Wall Plus. The latter integrates Tesla solar inverters.
Can Tesla Power Wall help electric vehicle owners?
Tesla followed in Apple‘s footsteps and began developing its own ecosystem. Just as iPhone users often use Mac Books, Tesla customers often choose Tesla‘s solar energy as their renewable energy option. However, this does not mean that you cannot benefit from Tesla Power Wall without owning a Tesla electric vehicle. Essentially, Power Wall is a universal lithium-ion battery.
Tesla Power Wall is particularly advantageous for electric vehicle owners as it allows them to utilize excess, usually unused solar energy and directly use it to charge electric vehicles. This is actually the most environmentally friendly charging method. It also helps to quickly offset the carbon emissions obtained from the initial purchase of electric vehicles. There is ample evidence to suggest that electric vehicle manufacturing uses more carbon than equivalent internal combustion engine vehicles.
However, the most important thing is how the energy you use to charge your car is harvested. For example, if your car is almost entirely charged using solar energy, your carbon emission balance point will be much faster than using coal-fired charging. Tesla‘s electricity will directly benefit those who want to achieve balance of payments as soon as possible, but price is an important factor to consider here, which we will discuss later.
Is Tesla‘s power wall efficient?
Tesla Power Wall and Power Wall Plus both have an energy capacity of 13.5 kilowatt hours, which is a good size for any household backup battery system. However, if your home consumes a lot of electricity or plans to completely disconnect from the grid, you may need multiple power walls to achieve this goal. You can have up to 10 power walls with a total storage capacity of 135 kilowatt hours.
According to the evaluation of the relevant team, the round-trip efficiency of the power wall is 90%, which means that 10% of the electricity will be lost on the way to battery storage. 90% or higher efficiency is the standard for modern lithium-ion batteries. The power output is very good. A power wall can output a peak figure of 7 kW or a continuous output of 5 kW. The peak power output of the power plus is rated at 22 kW, but these numbers depend on whether they are connected to the solar panel.
Tesla Power Wall provides comprehensive performance and efficiency for solar cells, and may offer services to some customers that other battery packs cannot provide. Tesla stated that the power wall can provide alternating energy in the event of a power outage to ensure that if a Tesla car is plugged in, it will be charged.
How much does Tesla Power Wall cost?
Tesla Power Wall comes in two shapes and sizes. Power wall and Power wall plus. The latter includes an integrated solar converter, making it an integrated solution for household energy storage needs. Although they all have an energy capacity of 13.5 kilowatt hours, the backup power output of Plus is approximately twice that of a regular Power Wall. Plus batteries also have more grid connected power and greater backup load startup capability, which is very useful on sunny days.
A standard Power Wall starts at $11500. The higher the discount, the more you can get. For example, the cost of ordering 6 Tesla Power Wall batteries is only slightly over $8000 per unit. If you include the discount, the full set price is $48500. A Tesla forum user commented that despite government tax credits, it still took him 3 years and 4 months to break even on the Power Wall.
A Tesla Power Wall battery is enough to maintain essential items in your home during a power outage. However, in order to power larger appliances, or if you want to store a large amount of excess solar energy, you will need additional batteries, not to mention Tesla‘s solar rooftop installation. Using these excess solar energy to charge your electric car can indeed have a huge positive impact on the environment. Although this is not cheap, if you want to pay attention to your carbon footprint and want to switch to electric cars forever, Power Wall is a good choice.
Patrick Qi
Patrick Qi
Gitenno