Cyber Times International Journal of Technology & Management

The main source of the energy in our life comes from fossil fuels, which is a non-renewable resource moreover it produces high amount of CO2. One of the solutions to global energy crises is development of geosynchronous orbit solar power satellites (SPS).It provides a clean and efficient source of energy by collecting the solar power from space and then transporting it to the earth. This is a new source of clean energy. Space solar power can solve our energy and greenhouse gas emissions problems. Space solar power can provide large quantities of energy to each and every person on earth with very little environmental impact. The time average power per unit area in space is 5-10 times larger than that on the ground, while the power loss for the wireless power transmission/reception is expected less than 50%.This paper provides a review on the currently formulated technologies like microwave power transmission, laser power transmission and the hybrid power transmission systems for transmission of solar power to the earth from SPS. It also talks about the effects on human health and environment due to SPS. Finally the paper suggests the development of a bread board model for microwave wireless power transmission (WPT). The purposes of using this bread board model is to obtain a precise directional control of WPT technology, which includes the direct detection of retina sites, and the microwave beam control skill with high angular precision, and to clarify the propagation characteristics of the microwave power in the ionosphere.