300W Monocrystalline Solar Panel PV Module for Home & Commercial Rooftop

A 36 V maximum-power voltage makes this the natural 24 V-system workhorse of the range. It is the size many installers standardise on: big enough for whole-house off-grid, still handled comfortably by a two-person crew. Where it fits best Whole-house 24 V off-grid systems Grid-tie arrays in the 3-6 kW range Commercial installations standardising on one module across sites Questions buyers ask How many for a 5 kW array? Around seventeen modules. That is a common residential size and usually fits a typical two-slope roof if shading is minimal. Can I start small and add more later? Yes, provided you plan controller and cable capacity up front. Adding modules to a series string later requires that the original voltage margin was reserved. Technical specifications Maximum Power (Pmax) 300 W Open Circuit Voltage (Voc) 43.2 V Short Circuit Current (Isc) 8.83 A Voltage at Pmax (Vmp) 36 V Current at Pmax (Imp) 8.33 A Module Efficiency 20.66 % Power Tolerance 0, +4.99W Maximum System Voltage 700 V DC Max Series Fuse Rating 20 A Module Type 210M300 Solar Cells Mono crystalline 210*105mm (4*15Pcs) External Dimensions 1650*880*30mm Weight 15 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 1665*70*895mm Package Weight Sold on IPV ESSA (https://ipvsolar.com/products/300w-1650x880x30mm). The price shown is the retail price on that storefront on 2026-10-21, not a GreenB2B quote or a wholesale price.