Could the world run on solar power Solar Energy Course 2020 Part 3 of 12

Welcome to "Could the world run on solar power." 📜Get your course certificate📜 ********************************** http://bit.ly/solar-crash-course-ipolytek SUBSCRIBE to see more courses like this one *********************************************** https://www.youtube.com/channel/UCYYX-pqg9CoVhjtC4cW4DIA?sub_confirmation=1 This is the 3rd video in our online professional development course for engineers entitled "Solar Energy." In it we discuss: Could the world run on solar power? How does the energy we receive from the sun compare to other renewable and non-renewable forms of energy? Find out in this video. This video is part of iPolytek's online course on solar energy. iPolytek, Professional Development Courses for Engineers. The International Energy Agency (IEA) compared the annual energy consumption of the world to : - the known fossil fuel and nuclear reserves - and the energy available from renewable resources annually Their results are summarized in the figure above. The volumes of the spheres represent: - the total amount of energy that can be recovered from the finite reserves - the energy that is available from renewable resources on an annual basis. Let's take a closer look. Worldwide energy demand in 2015 was 18.5 TWy/y (2015) This is eclipsed by the 23 000 TWy of Solar Energy that falls on the surface of the Earth each year How does this compare to other renewable energy sources? Solar energy alone surpasses the total of all other renewables which amounts to 156.3 TWy/y. As well as the combined total of all non-renewable reserves which amounts to 1570 TWy. Overall, we can see that the energy we receive from the sun each year is: • more than 1240x the annual global energy demand • about 150x greater than the possible annual output of all other renewable energies • and about 15x the total of all non-renewable energy reserves The IEA report ends with this statement « In conclusion, logic alone would indicate that the planetary energy future will be solar-based. There will, of course, be challenges, managing this locally variable -- but globally stable and predictable resource, in particular developing the necessary storage technologies and infrastructures. However, solar energy - as embodied by dispersed PV and CSP -- is the only quasi-ready-to-deploy resource that is both large enough and acceptable enough to carry the planet for the long haul. » So we've learned that solar energy is really big in comparison to all other energy resources. Now let's see how much land would we need to power the world using only solar photovoltaics. Find out in our next video! See you soon and thanks for watching. References: ************ 1. Perez, R. and M. Perez, (2015). (IEA 2015). A Fundamental Look At Supply Side Energy Reserves For The Planet. Retrieved from https://www.iea-shc.org/data/sites/1/... (accessed March 15, 2017) Music credits ************** Track 2: Carefree by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://incompetech.com/music/royalty-... Artist: http://incompetech.com/ Track 4: Carefree Melody by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Source: http://www.twinmusicom.org/song/302/c... Artist: http://www.twinmusicom.org #SolarPoweredWorld #HowMuchEnergyIsThereInSunlight #SolarPV