320W Monocrystalline Solar Panel PV Module for Home & Commercial Rooftop

Pushing toward 48 V territory at 46.08 V open-circuit, this module suits systems that want to keep current low — worthwhile on larger arrays, where every amp saved is cable and losses saved across a long roof run. Where it fits best Larger 24 V or entry-level 48 V off-grid systems Arrays with long cable runs from roof to plant room Reducing balance-of-system cost per kilowatt on bigger installs Technical specifications Maximum Power (Pmax) 320 W Open Circuit Voltage (Voc) 46.08 V Short Circuit Current (Isc) 8.83 A Voltage at Pmax (Vmp) 38.4 V Current at Pmax (Imp) 8.33 A Module Efficiency 20.54 % Power Tolerance 0, +4.99W Maximum System Voltage 700 V DC Max Series Fuse Rating 20 A Module Type 210M320 Solar Cells Mono crystalline 210*105mm (4*16Pcs) External Dimensions 1770*880*30mm Weight 19.1 kg Front Glass 3.2 mm tempered glass Frame Aluminum Junction Box IP67 Output Cables 100CM 4mm² Cable Connector MC4 Compatible Mechanical Load Front Side Max. 5400Pa, Rear Side Max. 2400Pa Pmax Temperature Coefficient -0.350%/°C Voc Temperature Coefficient -0.270%/°C Isc Temperature Coefficient +0.048%/°C Package Dimensions 1785*70*895mm Package Weight 40 kg Pieces per Package 2 Questions buyers ask Is 19.1 kg unusual for this size? It is on the heavier side for 320 W, which matters for roof loading calculations and for planning a two-person lift with the right handling equipment. Can it charge a 48 V battery bank directly? Only through an MPPT controller with a suitable input range and Sold on IPV ESSA (https://ipvsolar.com/products/320w-1770x880x30mm). The price shown is the retail price on that storefront on 2026-10-21, not a GreenB2B quote or a wholesale price.