Space based solar power generation
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Space-based solar power (SBSP) collects solar power in space using solar satellites and beams it to large rectennas on Earth. SBSP has been researched since the 1970s as a potential future energy option that could provide abundant, continuous solar power without atmospheric or weather effects. While extremely expensive currently, SBSP could solve global energy needs long-term by tapping into the vast solar resources available in space.
Space based solar power generation
- 1. Space Based Solar Power The Way of the Future Space-Based Solar Power (SBSP) PRESENTED BY: HARUNNUR RASID Electrical & Electronic Engineer B.Sc in ELECTRICAL AND ELECTRONIC ENGINEERING
- 2. Outline • The Energetic Future • The Alternatives • Space Based Solar Power • History • Working principal • The Benefits • The Costs • Conclusion • Works Cited
- 3. The Energetic Future • By 2050, the populationwill reach 9 billion • Energy consumptionwill rise by 53% between 2008 and 2035 • Some estimate an increase of 300% by 2100 • Current methods will not be enough
- 4. The Alternatives • Nuclear – Very high initial costs and safety • Natural Gas – Emits small amounts of CO2 and safety • Coal – Environment • Solar Power (Ground Based) – Very inefficient
- 5. Future Energy Options Must Be…
- 6. Space-based solar power (SBSP) is the concept of collecting solar power in space (using an "SPS", that is, a "solar-power satellite" or a "satellite power system") for use on Earth. It has been in research since the early 1970s. Space Based Solar Power
- 7. • Originally known as satellite solar-power system (SSPS), was first described in November 1968. • In 1973 Peter Glaser was granted U.S. patent for his method of transmitting power over long distances using microwaves from a very large antenna (up to one square kilometer) on the satellite to a much larger one, now known as a rectenna, on the ground. • Between 1978 and 1981, the US Congress authorized the Department of Energy (DoE) and NASA to jointly investigate the concept. • In 1997 NASA conducted its "Fresh Look" study to examine the modern state of SBSP feasibility. • On Nov 2, 2012, China proposed space collaboration with India in SBSP History
- 8. Space Based Solar Power • Energy concentratorMirror • The satatlite • Power then “beamed” to Earth by Rectenna
- 10. Rectenna Image of a Rectenna in US with diameter of about half a mile which is important as 95% of the microwave power is received by rectennas.USreceives about 5000MW of power as a result.
- 11. Benefits • No atmospheric effects • Almost always in the light How it would differ Solar Intensity 1,366 W/m2 No Night Min Weather Solar Intensity 1,000 W/m2 Night Loss Weather Loss Space Solar Ground Solar
- 12. Costs • Have to get materials into space • Incredibly expensive • Infrastructure needs to be updated
- 13. Beaming Power • Lasers or Microwaves • Efficiency • Special Receivers • Safety • Environmental Concerns
- 14. It does not look like this….
- 16. Conclusion • In the future, the globe will need more energy. • The solar energy available in space is literally billions of times greater than we use today. • Space solar power can completely solve our energy problems long term. • The sooner we start and the harder we work, the shorter "long term" will be.
- 17. Parting Thought • “We make the world we live in and shape our own environment.” –Orison Swett Marden • We need to act soon, but sometimes our little actions that seem to do nothing make big differences.
- 18. . • .