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A whole-home backup bundle pairing the Sol-Ark 15K-2P hybrid inverter with two Discover Helios 16kWh lithium iron phosphate batteries, for 32kWh of usable storage. The 15K-2P delivers 15kW continuous output and runs grid-tied, off-grid or grid-tied with battery backup, so it can offset loads with solar and carry the house through an outage. It suits homeowners with large loads — HVAC, well pumps, electric heat — who want one integrated system rather than separate inverter and battery brands. Against smaller 8–12kW hybrid inverters, it offers more surge headroom and a simpler path to whole-home coverage, at the cost of a higher-capacity, higher-priced system that needs a clean, well-ventilated install.
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This bundle pairs a Sol-Ark 15K-2P hybrid solar inverter with two Discover Helios 16kWh LiFePO4 battery modules, for 32kWh of usable energy storage. It operates grid-tied, off-grid or as backup power. The capacity supports major appliances such as HVAC systems, well pumps, electric ranges and EV chargers during grid outages.
The inverter delivers 15kW of continuous output. It has three independent MPP trackers, which suits complex roof layouts and partial shading. It switches between grid-tied, off-grid and backup modes with a 5ms transfer time. Load management prioritizes critical circuits during extended outages. The inverter accepts up to 19.2kW of AC-coupled solar input, so it can work with existing solar installations.
Each Helios battery module has a 4th generation battery management system that monitors cell voltage, temperature and state of charge in real time. Built-in self-heating lets the batteries operate in freezing conditions down to -13°F. The inverter and batteries both have IP65-rated weatherproof enclosures, so they can be mounted indoors or outdoors. CAN bus communication links the inverter and batteries. Wi-Fi and Ethernet connectivity allow remote monitoring through mobile apps and web interfaces.
