Undersizing your system means you’ll only be able to power your homeor certain items in your homefor a short amount of time during an outage. Oversizing your system means you’ll pay far more than you need to for backup power. Watch a short video showing the energy flow in How Powerwall Works. Battery capacity: The storage capacity of your battery or batteries is a crucial thing to dial in. We will turn off-grid power to simulate a power outage and train you to use the Powerwall cell phone app. When the installation is complete, our electrician will test the system. The solar battery backup installation takes 1 to 2 days for a Washington State residential system, longer for a more extensive procedure. We take care of everything from design and permits to testing and teaching you how to use them. System size (number of Powerwall batteries) depends on the size of your solar system, the electric loads you want to run when the grid goes down, and the length of time you need to power them. They can be placed adjacent to each other or stacked front to back. A solar system with battery backup is a type of grid-tied solar power system that provides an additional level of energy security in case the grid goes down. Powerwall mounting can go on the wall, floor, indoors, or outdoors. Each Tesla Powerwall Battery system consists of one or more 13.5 kW rechargeable lithium-ion battery packs and software housed in a Gateway that intelligently dispatches electricity. In such a system, you can charge your battery with your solar panels or the grid and use the energy stored there in your home or send it back to the grid and save some money via rate.
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