Japan sees a bright future for Ultradunne, flexible solar panels
Japan invests strongly in a new type of ultra -thin, flexible solar panel that it hopes will help to achieve renewable energy goals, while China’s dominance of the sector is being challenged.
Belibare perovskiet panels are perfect for mountainous Japan, with his shortage of sudden suddenly for traditional solar farms. And an important part of the panels is iodine, something that Japan produces more than any country except Chile.
The push is confronted with a few obstacles: Perovskiet panels contain toxic lead and for the time being produce less power and have shorter lifespan than their silicon opposite.
Still, with the aim of Net-Zero by 2050 and a desire to break the supremacy of China, perovskiet cells are “our best card to reach both low-carbon and industrial competitiveness,” said Industrie Yoji Muto Minister in November.
“We have to succeed in their implementation in society at all costs,” he said.
The government offers generous stimuli to get the industry on board, including a subsidy of 157 billion-year-old ($ 1 billion) in plastic maker Sekisui chemical for a factory to produce enough perovskite solar panels to generate 100 megawatts in 2027, enough to provide 30,000 households with power.
By 2040, Japan wants to install enough perovskiet panels to generate 20 gigawatt electricity, equal to adding approximately 20 nuclear reactors.
That should help Japan’s goal to have renewable energy up to 50 percent of the electricity demand by 2040.
– break the silicon ceiling –
The nation tries solar energy, including perovskiet and silicone-based solar cells, up to 29 percent of all electricity demand by that time, a sharp increase of 9.8 percent in 2023.
“To increase the amount of renewable energy and achieve carbon neutrality, I think we should mobilize all available technologies,” says Hiroshi Segawa, a specialist in the next generation of sun technology at the University of Tokyo.
“Perovskiet solar panels can be built in their own country, from raw materials to production to installation. In that sense, they can make a significant contribution to things such as energy security and economic safety,” he said AFP.
Tokyo wants to avoid a repeat of honor in the past and the failure of the Japanese sun industry.
In the early 2000s, Silicon solar panels made in Japan accounted for almost half of the world market.
Now China controls more than 80 percent of global solar supply chain, from the production from important raw material to assembly modules.
Silicon solar panels are made of thin waffles that are used in cells that generate electricity.
They must be protected by reinforced glass sheets and metal frames, making the end products heavy and cumbersome.
However, perovskiet solar cells are created by printing or painting ingredients such as iodine and leading surfaces such as film or plate glass.
The end product can only be a millimeter thick and a tenth of the weight of a conventional silicon solar cell.
The malleability of perovskiet panels means that they can be installed on uneven and curved surfaces, an important feature in Japan, where 70 percent of the country is mountainous.
– Generate where power is used –
The panels are already included in various projects, including a 46-storey Tokyo building that will be completed by 2028.
The southwestern city of Fukuoka has also said that it wants to cover a dome -shaped baseball stadium with perovskiet panels.
And Major Electronics Brand Panasonic is working on integrating Perovskite in Windowpanes.
“What if all these windows had integrated solar cells in it?” Said Yukihiro Kaneko, general manager of the PV development department of Panasonic, gestures to the glass-covered high-rise buildings around the office of the company in Tokyo.
That would make it possible to generate power where it is used and reduces the burden on the national schedule, Kaneko added.
Despite all the enthusiasm, perovskiet panels remain far from mass production.
They are less efficient than their silicon opposite hangers and have a lifespan of only a decade compared to 30 years for conventional units.
The poisonous lead they contain also means that they must be carefully removed after use.
However, the technology is progressing rapidly. Some prototypes can perform almost as powerful as silicon panels and their durability is expected to reach 20 years quickly.
University professor Segawa believes that by 2040 Japan could have a capacity of 40 gigawatts from Perovskite, while the technology can also accelerate the renewable recording elsewhere.
“We should not consider it a silicon or perovskiet. We have to see how we can maximize our ability to use renewable energy,” Segawa said.
“If Japan can show a good model, I think it can be brought abroad.”
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