Solar Panel Specifications Explanation

The term solar panel is used colloquially for a photo voltaic pv module.

Solar panel specifications explanation. Since voltage and current change based on temperature and intensity of light among other criteria all solar panels are tested to the same standard test conditions. Here s what you will find and how to interpret it. Stc is the set of criteria that a solar panel is tested at. Most panels should have an efficiency of 13 or more.

Here are some sample specs i uh stole for purposes of illustration. A pv module is an assembly of photo voltaic cells mounted in a framework for installation. The max power rating in watts that your solar panels are rated at is the figure that everyone quotes when talking about panel size. Get the information you need about solar panels their warranties who to contact and more.

Sw manufacturer solarworld 255 watt poly q cells q peak g4 1 product line of polycrystalline module 295. Solar panel efficiency is the efficiency of the panel as a whole and will always be slightly lower than the cell efficiency because of the gaps between individual cells. How to interpret solar panel specifications and use them to choose the proper panels for your application. Refers to the amount of wind force that the solar panel can withstand without breaking.

If the installer or salesperson talks aout a 190w or 250w panel they are talking about the max power rating of the panels. A collection of pv modules is called a pv panel and a system of panels is an array. A solar cell is a silicon wafer that is usually 125mm x 125mm or 156mm x 156mm in size. Here are a couple of examples.

The defined stc for solar is a panel pointed directly at a bright sun with 1000w of solar energy landing per square meter with the panel kept at 25 degrees celsius 77 degrees fahrenheit with an atmospheric mass a number that refers to the amount of atmosphere between the panel and the sun of 1 5 overhead. Photo voltaic cells use sunlight as a source of energy and generate direct current electricity. The number of cells isn t something that s important to you but the dimensions of the panel is. A solar panel or solar module is commonly made up of 60 72 or 96 solar cells wired together.