Panasonic has developed a solar cell that renewed the world record in generation efficiency. Panasonic’s new product has 24.7% generation efficiency, 0.5% higher than 24.2% maintained by Sunpower of the U.S. A solar cell produces various kinds of energy loss in the process to generate electricity with the sunlight coming in through a solar panel. In general, the energy loss is between 70% and 80%. It is critical to lessen the energy loss as much as possible.
Panasonic improved the film on the surface of a cell to increase the absorbed amount of sunlight and reviewed the materials and figure of the electrode. The National Institute of Advanced Industrial Science and Technology (AIST) measured the generation efficiency of the Panasonic’s new solar cell and confirmed that its generation efficiency is 24.7%. Panasonic plans to translate the research results into product development in the housing business to survive in the fierce price competition.
Panasonic’s photovoltaic system for housing