The Japanese government plans to generate 20 gigawatts of electricity, equivalent to the output of 20 nuclear reactors, through next-generation perovskite solar cells by FY 2040. 

Japan’s commitment to achieving net-zero emissions by 2050, is a step towards that goal, revealed by officials from the industry ministry.

Perovskite solar cells are light, and flexible, and can be installed on unconventional surfaces like building walls, windows, and car roofs. Their adaptability makes them ideal for Japan, where land for traditional silicon-based solar panels is limited.

With the second-largest global share of iodine production, a key material for perovskite solar cells Japan holds a significant advantage in developing these solar cells and can establish a robust, independent supply chain. 

Although companies like Sekisui Chemical Co. are pushing toward commercializing perovskite solar cells, there are still challenges that remain. 

The cells’ durability needs improvement, and production costs must be reduced. A full-scale deployment can not be expected until 2030, but the government is confident in overcoming these obstacles.

Japan’s solar power generation, which grew rapidly after the 2011 nuclear disaster, now contributes nearly 10% of the nation’s energy. However, competition from Chinese manufacturers has reduced Japan’s share in global solar panel production to less than 1% from a commanding 50% in 2004.

By nurturing perovskite technology, Japan not only targets to regain its leadership in the solar market but also plans to export these advanced solar cells worldwide, securing its place as a renewable energy innovator.

As one of the biggest economies, Japan’s success in this venture will open up new ways for the world and set a milestone in the sustainable innovation sector.

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