Chinese solar module manufacturer JinkoSolar have beaten the world record in conversion efficiency for their bifacial panels, a record recently set by Longi for their PERC solar panels.
Solar power manufacturers are highly focused on increasing the efficiency of their panels, essentially increasing the amount of light that is turned into electricity. The greater the efficiency, the greater the wattage produced by each panel. This is why Longi were so excited about setting the record for its PERC modules, increasing it to 22.38% in January, beating their own record of 21.65% the previous month.
JinkoSolar increases solar panel efficiency – sets new world standard
JinkoSolar have now announced that they have beaten the latest Longi record, achieving a 22.49% efficiency in January. This has set a new industry standard for mass produced solar cells. You might have noticed that the Longi and JinkoSolar records are for different types of solar panels, so a short comparison of these panels is helpful.
What are bifacial solar panels?
A bifacial solar panel is designed to allow light to enter the solar cells from both the front and the rear of the panel. Typically, light is captured on the front surface of the panel, whilst reflected light is absorbed by the rear panel. They have been popular in areas where light is reflected, for example in snowy environments and extreme latitudes. As you can imagine, bifacial solar panels aren’t very efficient when attached horizontally to roofs, so they are generally used in a vertical profile and installed on tilt frames.
What are PERC solar panels?
A PERC (Passivated Emitter and Rear Cell) is a newer technology that’s been heralded as one of the most cost effective methods for creating solar power. The biggest difference between the standard solar panels that you usually have on your roof and PERC panels is that they are more cost effective. That’s because they maximise energy output by being more efficient at converting light to energy. The biggest benefit of a PERC system to homeowners is that you can generate more energy with fewer panels.
How did JinkoSolar increase the efficiency of their panels?
JinkoSolar state that they achieved this increased efficiency by applying an advanced metallisation process, new anti-reflection coating and new tiling ribbon technology (TR). So far, JinkoSolar have been scant on the details of how they actually achieved these efficiencies, but their results have been verified by German testing services and certification provider TÜV Rheinland.
What does all this really mean?
As the costs of solar panels reduce and their efficiency increases, the efficacy of solar power gets closer to achieving global grid parity. This means that the levelised cost of electricity (LCOE) is less than or equal to the price of power from the electricity grid. The higher the efficiency of solar panels, the lower the LCOE, increasing the speed at which grid parity is achieved. This combination of increased efficiency, cheaper solar panels and the scalability of these systems is set to significantly challenge the cheapest fossil-fuel alternatives in the not too distant future.
For help selecting the best solar system for your property, call Cola Solar on 1300 374 357.