Powerwall System Design
A Powerwall installation includes at least one Powerwall, one Backup Gateway and electrical hardware dependent on the site and local electrical code.
Depending on your electrical set-up, Powerwall will backup all your appliances (whole home backup) or essential loads (partial home backup). Powerwall provides 5 kilowatts of continuous power, which is typically sufficient to provide whole home backup during a grid outage.
With partial home backup, you can select which loads are essential such as lights and outlets. If your home runs on a three-phase power supply, Powerwall will support the appliances on a single phase that you select.
During a grid outage, it is always best to not run all appliances at once. Your Powerwall system will turn off if appliances’ combined power usage exceeds 5 kilowatts. To calculate an appliance’s power consumption, visit CSE.
While one Powerwall is sufficient to power a typical home in Great Britain, multiple Powerwall systems will allow you to back up more loads and keep your home powered during longer outages—with increased power output and overall capacity. Powerwall systems can be mounted side-by-side on a wall or floor or stacked front-to-back on the floor.
When mounted side-by-side, each Powerwall must have enough clearance on the sides for electrical connections and proper ventilation.
When stacked front-to-back in groups of no more than three Powerwalls, the Powerwalls are floor-mounted and anchored to an adjacent wall and are then joined together with special hardware.
Where to Install Powerwall
Protected with the same high-quality paint as our vehicles, Powerwall easily endures outdoor temperatures ranging from -20°C to 50°C. When Powerwall is exposed to temperatures outside of its optimal range of 10°C to 30°C, it may limit charge or discharge power to improve battery lifespan.
To optimise performance, avoid installing Powerwall in locations exposed to direct sunlight or subject to extreme temperatures. Additionally, while humidity and rain do not pose a risk, Powerwall should not be installed in locations subject to flooding or near water sources such as drainpipes or open drains. In order to maintain proper ventilation, Powerwall should be kept clear of debris such as leaves and dense bush.