Reading Solar Panel Labl

Grid tie solar panels with 60 cells are often referred to as 20v nominal panels like the solarworld sunmodule 290w solar panel.

Reading solar panel labl. Commercial solar panels have 72 cells but they are much too big for residential roofs. Solar cells are typically about 4 5 wide by 4 5 tall. Residential solar panels have 60 cells and so are about 3 feet wide by 5 feet tall. The example photo of a solar pv label indicates name and address of the manufacturer and the solar module type blackened.

Right below the electrical ratings indicate the major performance output characteristics of the panel. Here are a couple of examples. Sw manufacturer solarworld 255 watt poly q cells q peak g4 1 product line of polycrystalline module 295. On the lower part of the label there are icons of all the certifications this specific panel has passed.

It starts to get tricky when you move away from battery based solar systems and the 12v increments are no longer necessary. The max power rating in watts that your solar panels are rated at is the figure that everyone quotes when talking about panel size. They have too high of a voltage to charge a 12v battery bank with a traditional charge controller but too low of a voltage to charge a 24v.