The advanced version of Tesla Powerwall 2.0 which was released last year is considered one of the most used units for energy storage. Still, if you are thinking, whether it is worth buying it or not, answer to the following three questions can give you the idea.
* Is the power storing capacity enough to make it viable?
* Is it the best solar energy storage battery available in the market at present?
* Should you go for Tesla Powerwall2 pertaining to the constant advancement in the industry?

Firstly, discussing the present status of the battery will give you the clear picture while considering that the changing scenario which may lead to addition or removal of features and the prices also may change.

About Powerwall 2 and it’s working

It is a rechargeable battery system that has the ability to store energy from the solar panels or from the grid. And you can use the stored energy whenever needed to meet the household electrical requirements. It is able to store the power in AC (Alternating current) form. It can take it from the grid connect solar inverter or from the grid itself and change it to DC to be stored in
the battery. This ensures you with a store of excess energy that can be again converted to AC to be used for your household electrical devices or business requirements.

One of the major advancement that Tesla Powerwall 2 has with the previous model (Tesla powerwall1) is that the unit has its own battery inverter and a battery management setup while the previous model to function needed a hybrid battery inverter.

The working is also simple and effective. It looks like a huge iPhone with two metal boxes. One of which holds the inverter and the Lithium-Ion battery and the Backup. The backup gateway works for energy management, calculation and monitoring the functionality of the unit.

It maintains the connection with the grid, disconnecting in a secured way and creates a backup to be used when there is an outage. The advanced backup system has a communication function that can get over-the-air updates.

How does the Tesla Powerwall operate generally?

The functionality of the Tesla Powerwall differs depending on its mode. The common mode is self-powering your domestic electrical requirements. To be precise, when the solar panel is generating more energy than the electrical requirements of your house the Powerwall will save the excess amount and store it at its maximum capacity. You can use it whenever needed.

For more information https://www.solarplants.org.uk/battery-storage/