Tesla Powerwall

Tesla’s Powerwall 2 is a single-phase battery storage system. Whilst it is designed to work with single-phase residential electrical systems, you can still install Tesla Powerwall on a 3 phase supply. Simply by installing a sign unit on each phase or alternatively installing multiple units on one phase. The maximum number of units installed per 3-phase supply is 9 – 3 per phase, whereas you can install 10 Powerwall units on one phase to power single-phase loads. In the event of a power cut, Powerwall will provide backup power to a single phase you select. 

As the Tesla Powerwall has an IP rating of IP67, meaning it is both dustproof and water resistant, the Powerwall is suitable for both indoor and outdoor installation. Whilst the Tesla Powerwall has an optimal temperate of 10°C to 30°C, it can easily endure outdoor temperatures from -20°C to 50°C. Whilst Tesla Powerwall can be installed outside, to optimise performance it is advised to avoid installing Powerwall in locations: exposed to direct sunlight, subject to extreme temperatures or near a water source.

Unlike many of Tesla Powerwall competitors, Powerwall uses Preconditioning to improve charging performance and minimise the impact low temperatures have on the battery’s ability to charge. As the Tesla home battery can detect the internal temperature, when the temperatures are below freezing, Powerwall draws upon a small amount of energy from the battery to heat itself and improve the overall operation of the battery. This combined with Tesla’s unique liquid thermal management system, allows your Powerwall to operate at lower temperatures better than any other home battery, making the Tesla Powerwall worth it.

The Size and Weight of The Tesla Powerwall 2 is as follows:

Size: 1150 mm (L) x 753 mm (W) x 147 mm (D)

Weight: 114 kg

Tesla Powerwall is a great alternative or addition to a generator. Tesla Powerwall can act as an Emergency Power Supply (EPS) to any home, as it can detect outages and has the ability to keep your home running seamlessly when the grid goes down.

Unlike a Generator, Powerwall responds immediately, requires no fuel, or upkeep and doesn’t make any noise. Powerwall can be added to a system with a backup generator, through the use of an Automatic Transfer Switch (ATS) or a Manual Transfer Switch (MTS), to provide an alternative backup supply, when the Powerwall has a low charge, or if the load exceeds the battery’s maximum output. Although they can be integrated into one system, Tesla Powerwall will not charge from the generator, only the Grid and Solar PV. 

In most situations, the Tesla Powerwall ticks most if not all the boxes for our customers. Nonetheless, at Deege Solar we also install a variety of other solar batteries. The most competitive alternatives to Powerwall, are the SolarEdge Energy Bank, Givenergy All-One Battery, and Purdrive Purestorage II.