![]() We’d recommend you start with energy efficiency measures, then grid-connected solar, and perhaps add batteries for backup. If your home is already connected to the grid, it is generally not wise to try to retrofit it to off-grid operation, due to the extreme cost. ![]() Because off-grid systems have no backup from the grid, they require careful planning, sizing, and design. It’s possible to design a system for the specific needs of your remote home. Thinking of building a home far from existing utility lines? Off-grid homes were one of the first applications for solar electric systems. For example, you might choose to keep 50% of your battery capacity available for backup at all times, and use 50% of your battery capacity for energy independence on a daily basis. However, a homeowner will have to choose the percentage of storage dedicated to each use. Most systems can be configured to provide both backup and energy independence at the same time. These systems can also be configured to send no electricity to the grid, if a utility does not allow energy exports. At night, you can use the energy stored in the batteries to power some or your electrical loads, depending on the system size and design. When your solar electric system produces energy during the day, it will first charge the batteries, before exporting any energy to the grid. If you like to keep your energy as local as possible and use your clean solar energy at night, instead of buying dirty fossil fuel electricity, you may want to install storage batteries for independence. We recommend pairing existing Enphase Energy solar electric systems with the Enphase IQ Battery energy storage system. Many backup systems are installed with solar electric systems that can charge the batteries during the day, even if the grid is not available.Įach of the products that we install can be retrofitted to work with existing solar electric systems. Larger, more expensive systems can power more and larger loads for a longer time. Typically, customers choose important smaller loads, like their lights, computers, a refrigerator, and perhaps a window air conditioner or mini-split. When the grid is available, the batteries are on standby, fully charged, waiting for an outage. These systems are set up to power a few electrical loads when the grid goes down, for a few hours. The most common use of batteries in Tucson and Southern Arizona is for backup. Solar panels for a battery backup system north of Tucson Batteries for Backup We’ll also dispel a few common misconceptions. Are you interested in batteries for energy storage for your home or small business? We’d love to share our knowledge about the main advantages of energy storage in southern Arizona, explain some product options, and walk you through the steps of design and installation.
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