Solar Panel Efficiency Calculator

The higher the efficiency of a solar panel the more solar power it will produce per square metre.

Solar panel efficiency calculator. Our solar savings calculator provides more accurate cost and savings estimates by analyzing your current electricity bills rooftop and solar pricing in your area. The efficiency of a panel refers to the ability of the panel to convert sunlight into usable energy. Solar panel efficiency calculator solar panel calculator is an online tool to calculate the approximity of the solar electric energy efficieny. To calculate the solar panel efficiency you need to divide the wattage per unit area pmax total area in sq m of the solar module by the stc irradiance value 1000w sq m.

If a solar panel has 20 percent efficiency that means it s capable of converting 20 percent of the sunshine hitting it into electricity. Solar panel efficiency is another factor that affects how much energy a particular panel will produce. Solar cell efficiency is the rate at which a solar panel transfers the sunlight via photovoltaics into electricity. The average cell efficiency of a solar panel is between 11 22.

In the spring summer and autumn the efficiency is lower 74 75 in spring autumn and 68 74 in summer because in these seasons the sun travels a larger area of the sky and a fixed panel can t. In a panel with 20 percent efficiency for instance 20 percent of all the light that hits it will be translated into electricity. It varies between manufacturers. This is the simplest way to get any solar pv module s efficiency.

It allows homeowners small building owners installers and manufacturers to easily develop estimates of the performance of potential pv installations. Nrel s pvwatts calculator estimates the energy production and cost of energy of grid connected photovoltaic pv energy systems throughout the world. Solar power as a function of time in kwh or wh that your solar panel can produce taking into account its rated power and solar energy available at your place. The highest efficiency solar panels on the market today can reach almost 23 percent efficiency.

The average efficiency of solar panels falls between the 17 to 19 percent efficiency range.