Without a doubt, Panasonic is one of the strongest consumer electronics companies in the world. It’s a brand that most people have faith in, and continue to support over the years.
This support, of course, is a testament to their technology and their manufacturing excellence. And when it comes to solar technology, Panasonic has been doing their research. The Panasonic HIT panel is a reflection of that hard work.
There are three key metrics we use to evaluate solar panel quality: efficiency, performance, and warranty— and here’s how Panasonic HIT panels stack up.
Solar panel efficiency usually refers to how well a solar panel captures sunlight and converts it into useful electricity. In the same conditions, a high-efficiency solar panel will produce more electricity than a lower-efficiency panel of the same size. For this reason, a higher efficiency rating is generally preferable.
While the majority of solar panels fall in the 14% to 18% range, Panasonic panel efficiency can range anywhere from 19.4% to 21.6%.
A temperature coefficient is an indicator of how well your solar panel can handle less-than-ideal conditions. Solar panels, like other electronic equipment, perform better when they are kept cool (ideally around 25° C/77° F). The temperature coefficient tells you how much your panel’s performance will change during hot sunny summer days.
For every degree above 25° C (77° F), your solar panel’s electricity production will decrease by its temperature coefficient. For example, Panasonic’s HIT panel has a temperature coefficient of -0.3%/°C. This means that, if the panel’s temperature increases by one degree from 77° F to79° F, its electricity production will decrease by 0.29%.
Living here in Southern California, solar panels see a lot of hot and sunny days over the course of each year, so ideally, they will have the lowest temperature coefficient possible.
Compared with other solar panel technology, Panasonic’s solar panels offer some of the lowest temperature coefficients in the industry at -0.29.
Whether you’re buying a TV, a car, or solar panels, the manufacturer should stand behind their product with a strong warranty.
Panasonic offers a 25-year warranty against any defects in their solar panels.
While conventional solar panels use a single layer of monocrystalline or polycrystalline silicon, Panasonic HIT™ panels use a combination of monocrystalline and ultra-thin amorphous silicon layers to reduce power loss.
The surface of Panasonic’s panels also has a pyramid structure that can reduce reflection and direct more sunlight into the solar cells, which also maximizes electricity output.