{"id":25615,"date":"2026-01-14T18:30:00","date_gmt":"2026-01-14T23:30:00","guid":{"rendered":"https:\/\/www.ecoticias.com\/en\/?p=25615"},"modified":"2026-01-14T13:39:53","modified_gmt":"2026-01-14T18:39:53","slug":"goodbye-to-solar-panels-japan-has-just-broken-a-rule-that-had-remained-intact-for-more-than-140-years-and-proves-that-solar-panels-do-not-have-to-be-flat","status":"publish","type":"post","link":"https:\/\/www.ecoticias.com\/en\/goodbye-to-solar-panels-japan-has-just-broken-a-rule-that-had-remained-intact-for-more-than-140-years-and-proves-that-solar-panels-do-not-have-to-be-flat\/25615\/","title":{"rendered":"Goodbye to solar panels: Japan has just broken a rule that had remained intact for more than 140 years and proves that solar panels do not have to be flat"},"content":{"rendered":"\n

For more than a century, most people have pictured solar power in the same way, as flat blue rectangles on rooftops or in wide fields. That look dates back to 1883, when inventor Charles Fritts<\/a> built one of the first solar panels as a rigid plate that worked best when light hit it straight on.<\/p>\n\n\n\n

In Japan, engineers at Kyosemi Corporation decided to question that flat template. Their answer is Sphelar<\/a>, a family of tiny spherical solar cells that collect light from many directions instead of just one, which could change where solar power fits in our lives, from glass towers in city centers to the gadgets we charge at home.<\/p>\n\n\n\n

From flat plates to tiny spheres<\/h2>\n\n\n\n

Early solar cells were designed for a steady beam of light shining onto a flat surface. That setup works well when you can tilt a panel toward the sun, but it struggles when clouds roll in, shadows creep across a roof or a wall faces the wrong way for most of the day.<\/p>\n\n\n\n

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Read More: Astronauts photograph from the ISS a red electrical phenomenon exploding above storms at altitudes of up to 89 kilometers (about 55 miles)\u2014a phenomenon that for decades seemed nothing more than a pilot\u2019s legend<\/a><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n

Engineer Shuji Nakata<\/a>, who led development of Sphelar at Kyosemi, started from a simple observation that sunlight in the real world rarely arrives in a neat straight line. It bounces off glass, water and pavement and filters through clouds from many angles at once, so he asked why solar cells should ignore everything that is not coming from directly ahead.<\/p>\n\n\n\n

Microgravity and the birth of spherical cells<\/h2>\n\n\n\n

Turning that question into hardware meant finding a way to make large numbers of almost perfectly round silicon beads. Japan had already created the Japan Microgravity Center<\/a>, known as JAMIC, by turning a former mine shaft into a deep research tunnel where falling objects experience brief moments of weightlessness.<\/p>\n\n\n\n

Kyosemi engineers used that facility to drop sealed capsules of molten silicon through the shaft. As they fell, the material softened into droplets, rounded itself in microgravity and cooled into solid beads that were ideal for tiny solar cells, and engineers then used the company\u2019s opto-semiconductor know-how to form a P-N junction inside each sphere so that absorbed light could push electric charges and produce useful current when the beads were wired together.<\/p>\n\n\n\n

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