The Japanese government aims to significantly ramp up its use of next-generation perovskite solar cells, announcing a target of 20 gigawatts by the year 2040. This initiative, revealed by the Ministry of Economy, Trade and Industry on November 26, is projected to supply energy to approximately 5.5 million households, marking a significant step in the country's energy policies that will be detailed by the end of the year.

Japan is at the forefront of research into perovskite solar cells, often referred to as “flexible solar cells.” These cells are notable for their lightweight and flexible nature, allowing them to be installed in various locations such as on rooftops, walls, and even within window panes. Unlike traditional solar panels that predominantly require imported silicon, perovskite cells are produced using iodine, a resource Japan can source domestically. This shift not only enhances Japan's energy independence but also opens avenues for exportation of this technology.

In light of increasing competition from Chinese and European markets, the ministry is advocating for a collaborative effort between both public and private sectors. This partnership is essential for developing mass production technologies and building a solid manufacturing infrastructure for perovskite solar cells in Japan.