For decades, Japan and its space agency, JAXA, have been striving to make possible the transmission of solar energy from space.
A significant milestone was reached in 2015 when JAXA scientists were able to successfully transmit 1.8 kilowatts of power – enough to power an electric kettle – over 50 meters to a wireless receiver. wire.
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Now, Japan is about to take this technology one step closer to reality. According to theNikkei, a Japanese public-private partnership is preparing for an ambitious project to transmit solar energy from space by the year 2025.
How will Japan's space solar power work?
Led by Naoki Shinohara, a professor at Kyoto University and an expert in space-based solar energy since 2009, the project aims to deploy a series of small satellites into orbit.
These satellites will be responsible for collecting solar energy and transmitting it to terrestrial receiving stations located hundreds of kilometers away, in addition to representing a significant step in the search for a clean and renewable.
The proposal to use orbital solar panels and microwaves to transmit energy to Earth was first presented in 1968. Since then, several countries, including China and the United States, have invested significant resources in the research and development of this idea.
In fact, orbital solar panel technology has a number of attractions, mainly due to its potential to provide a virtually unlimited supply of renewable energy.
One of the advantages is that solar panels in space can collect solar energy continuously, regardless of the time of day, as they are not subject to the daily cycles of sunlight and dark terrestrial.
It is also true that despite advances in research and development of solar array technology orbitals, there are still significant challenges to be overcome to make it a commercial reality viable.
With the technologies currently available, estimates indicate that the cost of developing an array capable of generating this amount of energy could reach around US$ 7 billion.
These high costs are a major obstacle to the large-scale implementation of this technology.
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