Description Meet Sol-Ark, the all-in-one hybrid solar power center that can handle anything you throw at it. Connect this 21.0 kW Sol-Ark + Fortress battery kit to the grid for an easy home battery backup solution. Or, install it as a fully independent system to deliver power to remote off-grid locations. Not only does Sol-Ark’s cutting-edge hybrid inverter work in any solar application (grid-tie, off-grid or battery backup systems), it can automatically detect connection to the grid and switch between on-grid and off-grid applications seamlessly. This pre-designed solar kit contains the core components you need to go solar on your terms, including solar panels, a power center, racking, batteries and battery enclosure. Whether you install your solar panels yourself or hire a local contractor to assemble your system, GoGreenSolar’s kits give enterprising DIYers a way to save money on their solar project vs. outsourcing it to a turnkey solar provider. Sol-Ark Inverter/Charger supports simultaneous AC and DC coupling 126 Amp Grid or Generator Passthrough (63 amps per inverter) 4ms UPS – No glitch transfer capability 4 MPPTs to allow for different solar panel orientations (2 per inverter) Remote Access and App Integrated 250A Battery Breaker/Disconnect Premium Lithium Iron Phosphate (LifePO4) Technology with 98% Round Trip Efficiency Integrated Battery Management System to balance battery cells Closed-loop communication between batteries and inverter/charger What’s Included 64 Tier-1 Solar Panels (2) 12 kW Sol-Ark inverter/chargers (6) 5.4 kWh Fortress eFlex Battery Banks DuraRack Indoor / Outdoor Enclosure IronRidge Solar Panel Racking Optional Add-on – Module Level Rapid Shutdown (Only required for roof mounted solar) Call for Quote (866-710-8259) Warranty Solar Panels - 25-year warranty Inverter/Charger - 5-year warranty Batteries – 10-year warranty