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The Space Solar Power Demonstrator Achieves Wireless Power ... - Fagen wasanni

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The Space Solar Power Demonstrator Achieves Wireless Power Transfer in Space

A prototype known as the Space Solar Power Demonstrator (SSPD-1) has successfully demonstrated wireless power transfer in space and beamed detectable power to Earth. The prototype, which was launched into orbit in January, includes the Microwave Array for Power-transfer Low-orbit Experiment (MAPLE), a flexible lightweight microwave transmitter that validates the feasibility of space solar power. Space solar power aims to harness solar energy in space and transmit it to Earth’s surface, providing abundant and reliable power globally without the need for ground-based transmission infrastructure.

MAPLE uses an array of flexible lightweight microwave power transmitters to transmit energy wirelessly to desired locations. The successful operation of MAPLE in space confirms the potential of space solar power and its ability to transmit energy to Earth. The prototype utilizes precise timing-control elements to focus power selectively on the desired location using the coherent addition of electromagnetic waves. This allows the majority of the energy to be transmitted to the desired location.

MAPLE features two separate receiver arrays located near the transmitter to receive the transmitted energy, convert it to direct current electricity, and light up LEDs to demonstrate wireless energy transmission in space. The experiment is subject to the harsh environment of space, including temperature swings and solar radiation.

The successful demonstration of wireless power transfer in space by MAPLE represents a significant advancement in space solar power technology. It opens up the possibility of harnessing solar energy from space without the constraints of traditional solar panels on Earth’s surface. This technology has the potential to provide reliable power to remote regions and areas that currently lack access to electricity.

Related Knowledge Center: ENERGY BASICS: solar

State of Play

Declining costs and government encouragement have resulted in a rapid increase in solar energy production in the United States over the past 10 years, although solar’s share remains small: 1.6 percent of all electricity generation in 2018. That rapid growth is projected to continue.

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