Beam it down: how the new satellites can power the world

Article Abstract:

The communications industry has announced projects using low-orbiting communications satellites that can double as solar power satellites. The satellites can use solar panels to gather solar power and then project the electrical current through microwave beams to rectifying antennas where the signals are converted to cheap, environment-friendly electric power, ready for distribution and public use. To date, the only significant potential problem facing the project is the limited frequencies in the microwave spectrum.

Guided missiles and space vehicles, Communications Satellites, Guided Missile and Space Vehicle Manufacturing, Satellite Solar Power Stations, Cover Story

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High hopes for low satellites

Article Abstract:

Low-earth-orbit (LEO) satellites are a new generation of communications satellites which can also be used for collecting solar power. These LEOs orbit the earth at an altitude of 400 to 1,000 miles. The plan of communications companies to launch dozens of LEOs in the early 21st century will enable people to communicate by audio, video, e-mail, fax, and paging, with anyone from anywhere. At the same time, the plan could be used to form an orbiting infrastructure for solar power collection and distribution.

Radio & TV communications equipment, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Telephone communications, exc. radio, Satellite Communications, Satellite Telecommunications, Satellite Communications Eqp, Satellite communications systems

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Thermophotovoltaics

Article Abstract:

Advances in materials science is making the realization of a commercial prototype of thermophotovoltaic electricity generator possible. Thermophotovoltaics rely on radiant heat energy to dislodge electrons and produce an electric current.

Innovations, Heat-engines, Heat engines

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