Japanese scientists from the Japan Aerospace Exploration Agency (JAXA) have taken a breakthrough step toward making solar energy transmition from space wirelessly becoming a reality.Japanese scientists successfully utilized microwaves to deliver 1.8 kilowatts of power by the air to a pinpoint receiver 55 metres away without wire.In this process the researchers convert electrical signal into microwaves and send to a receiver.Then again convert into electrical signal.The major benefit of solar power generation in space is permanent availability of energy.
A spokesman for the JAXA said,"this was the first time anyone has managed to send a high output of nearly two kilowatts of electric power via microwaves to a small target, using a delicate directivity control device." He also said, "while the distance in Mitsubishi's experiment was not huge, the technology could pave the way for humankind to eventually tap the vast amount of solar energy in space."
JAXA has been working on Space Solar Power Systems project for years and has target to send solar power from space to Earth by using microwave transmission, the spokesman said.The microwave-transmitting solar satellites have antennae and panels for gathering sunlight, which transmit microwaves from an altitude of 36,000 kilometres.The JAXA spokesman forecasted that the practical application of this technology could take years, hope so it could be launched in 2040.
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