What does 315 photovoltaic panel mean

A 315 watt solar panel produces 315 watts of power under Standard Test Conditions (STC), which include 1000 watts per square meter of solar irradiance, 25°C cell temperature, and 1. . Refurbished 315W panels offer exceptional value at $0. 57 per watt – representing 50-70% cost savings compared to new panels while maintaining proven performance, making them ideal for budget-conscious installations with adequate space. 315W panels require 25-30% more roof space than modern. . SunPowerTM Solar Panels are the most efficient photovoltaic panels on the market today. Harness the power of the sun for a brighter future. 6 kW solar system typically consists of 20 panels each delivering 330W of power. [pdf]