procurement of spare and necessary material for solar power plants of dnhddpcl , supply of dcr 580w monocrystalline topcon solar panel with a fill factor of 80% or greater is a high-efficiency solar panel using advanced topcon (tunnel oxide passivated contact) technology to maximize power output. these panels typically feature a high conversion efficiency, often above 22%, and are designed for both residential and commercial solar installations. bifacial models, which can generate power from both the front and rear sides, are also available, potentially increasing energy yield. • power output: 580 watts (w) • panel type: monocrystalline silicon • technology: topcon (tunnel oxide passivated contact) • fill factor: greater than or equal to 80% • efficiency: typically above 22% • bifacial option: available, allowing for energy generation from both sides of the panel • number of cells: 144 half-cut cells are common • dimensions: approx. 2278mm x 1134mm x 30mm (dimensions can vary slightly by manufacturer) • weight: approx. 32.5 kg (weight can vary by manufacturer) • mechanical load: withstands high wind and snow loads, e.g., 5400 pa (front) and 2400 pa (back) • operating temperature: -40°c to 85°c • junction box: junction box with waterproof ip67 & mc4 compatible and enclosed with bypass diode 100% electroluminescence • warranty: 25-year product warranty and 30-year linear power output warranty are common make: tata / waaree / adani , supply of solar inverter gried tied: mppt range: 80-1000 v, max efficiency: 97.5% - 98.9%, o/p frequency: 50/60hz, operating altitude (m) =4000, o/p power factor: ~1, o/p thdi: <3%, operating tempreture range: -25~60°c, anti-islanding protection: integrated, input reverse polarity protection integrated, insulation resistor detection integrated, residual current monitoring unit integrated, output over current protection integrated, output short circuit protection integrated, output over voltage protection integrated, protection degree: ip65, user interface lcd & app, datalogger & communication: gprs / wi-fi (optional) solar inverter: 50 kw, max. input current: 40 a, max dc i/p power: 66500 w & nominal o/p power: 50000 w, nomimal o/p voltage: 400 v 3-phase, nominal o/p current: 80 a. warranty: 10 years minimum make: sungrow / growaat / abb / havells. , supply of dc cable: electron beam cross linked compound, uv, ozone, temperature & hydrolysis resistant flame retardant, low smoke excellent encapsulation very long / service life > 25 standards / material properties: fire performance : iec 60332-1-2 smoke emission : iec 61034/ en 50268-2 halogen free: en 50267-2-1/-2, iec 60754-2 toxicity: en 50305, itc – index <3 ozone resistant : en50396 weathering uv: hd 605/a1 or din 53367 approvals : en 50618; h1z2z2-k (a) 1 core 6 sqmm copper unarmored dc cable colour red , (b) 1 core 6 sqmm copper unarmored dc cable colour black , supplying mc4 connector male - female set, 1500v dc for solar dc cable which is installed in solar pv-module/inverter/dcdb etc. make: elmax / eaton / ningbo , nylon cable ties of size 200 mm x 4.8 mm (packet of 100 nos). as per approved sample.