The Tesla Powerwall 2 AC is the latest offering from Tesla. Tesla’s new business model means that approved installers, such as Totnes Energy, can now buy directly from Tesla. This means lower prices per kWh of storage. The new Tesla Powerwall 2 AC (13.5 kWh) has double the capacity of the Tesla Powerwall 1 (6.4 kWh) ; however, it is only 20% larger.
The Tesla Powerwall 2 AC is a great option if you are considering electric cars due to its very large battery size. In comparison, many competitive battery systems are around 2kWh of usable capacity. The new prices mean the Tesla Powerwall 2 is the cheapest battery backup solution per kWh – it is also the most advanced with its liquid cooling system.