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Sol-Ark’s all-in-one hybrid inverters contain all of that additional equipment within a single unit.Įach model comes with two MPPT charge controllers, and also provides communications with battery management systems (BMS) to ensure high efficiency. Sol-Ark’s inverters all come inside the same sized NEMA 3R enclosure. In order to use batteries, you need a hybrid inverter, but then also need to add a charge controller, battery communications relay, and other equipment. Most solar inverters do a simple thing: convert DC power from solar panels to AC power that is usable in a home. All Sol-Ark inverters have auto-generator start capability. Secondly, Sol-Ark inverters are all-in-one hybrids, meaning they can accept AC or DC input power from solar, the grid, or generators, and then output that power to batteries and loads (i.e., appliances and other things that require power). Off-gridders can even add a second Sol-Ark inverter in parallel in order to start up large motors off the grid, but the best solution seems to be pairing the Sol-Ark inverter with an autotransformer, like solar technician Ben McFeeters does in this video:

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People living off-grid who need to provide full power to their home have tried various ways of working around this, such as re-wiring 120V motors to 240V (when possible), and using some propane-fueled appliances to avoid drawing too much current. Most people will use a Sol-Ark inverter to connect a battery bank to a critical loads panel, only running certain circuits in their home when the grid goes down. This would only be a problem if you intend to use these high-startup current devices in an off-grid situation. One issue it hasn’t overcome is its inability to start large 120V induction motors, like those found in many window air conditioners, power tools, and other appliances.įor most people, this drawback of transformerless inverters won’t be an issue. In general, a transformerless inverter is more prone to surges and shocks, although Sol-Ark has overcome these issues. With that said, there are also drawbacks to transformerless architecture. In addition, a transformerless inverter is more efficient and produces less heat than a conventional inverter. Transformers are bulky and heavy, which means a transformerless inverter is more compact and lighter, making it easier to install.

Transformerless architectureĪll of Sol-Ark's inverters are transformerless, which means they use electronic components to control voltage.

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Their interface, transformerless architecture, and all-in-one hybrid design make them easy to install and use, and Sol-Ark’s support ensures its customers have a successful experience. Sol-Ark plans to begin selling a 15 kW inverter (called the “15K” of course) later in 2022.Īll of Sol-Ark’s inverters come with some important specifications that have made them the preferred choice of the DIY off-grid community. They are called the 5K, 8K, and 12K lines. Sol-Ark currently sells three models of inverter, with names that correspond to the number of kilowatts (kW) of continuous power output.

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