Ziyu Grace Zhou Overview What is solar energy How does solar energy generated Photovoltaics Why do we care about solar Common applications Money What is the future of solar Solar Energy Trees ID: 808965
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Slide1
Solar Energy
MTLE 4962- Energy, Environment and Economy
Ziyu (Grace) Zhou
Slide2Overview
What is solar energy?
How does solar energy generated?
Photovoltaics Why do we care about solar?Common applicationsMoneyWhat is the future of solar?Solar Energy TreesPros and ConsTechnological ChallengesQuestion and Discussion
http://graphican.deviantart.com/art/Green-Energy-78673552
Slide3What is solar energy?
Solar energy is defined as energy derived from the sun in the form of solar radiation
First observed in 1839 by
Alexandre Edmund BecquerelBell’s Lab developed first PV device in 1954
http://www.huffingtonpost.com/laiza-king-/
how-solar-energy-is-chang_b_10071270.html
http://www.digitaltrends.com/cool-tech/china-solar-energy/
Slide4How does solar energy generated?
Use
photovoltaic cell (semiconductor material) to transfer solar energy into electricityPhotons strike and ionize semiconductor material on the solar panel, causing outer electrons to break free of their atomic bonds.The electrons are forced in one direction creating a flow of electrical currentSolar cells are not 100% efficient due to reflection and heat generation
https://in.pinterest.com/explore/semiconductor-diode/
Slide5Why do we care? - Applications
Solar Powered Transportation
Solar
TechnologiesSolar HeatingSolar LightingRooftop Solar
Slide65 Common Applications
Solar Powered Transportation
Railroads, subways, buses,
planes and carsSolar Impulse 2 (12-2009)long-distance all-solar aircraftSolar buses in China (07-2012)Solar Spirit in AustraliaStudent designed solar car in 2011, 2013 and 2015
http://news.energysage.com/most-common-solar-energy-uses/
Slide75 Common Applications
Solar Powered Transportation
Solar
TechnologiesSolar powered chargesE.g. Anker’s PowerPortSolar FlashlightsWearable solarE.g. Future Apple Watch
http://news.energysage.com/most-common-solar-energy-uses/
Slide85 Common Applications
Solar Powered Transportation
Solar
TechnologiesSolar HeatingSolar water heaterSolar space heater
http://news.energysage.com/most-common-solar-energy-uses/
Slide95 Common Applications
Solar Powered Transportation
Solar
TechnologiesSolar HeatingSolar LightingOutdoor solar lighting (energy storage)Join with LED or other lighting technologies
http://news.energysage.com/most-common-solar-energy-uses/
Slide105 Common Applications
Solar Powered Transportation
Solar
TechnologiesSolar HeatingSolar LightingRooftop Solar
Save utility cost !
http://news.energysage.com/most-common-solar-energy-uses/
Slide11Why do we care?
-- To Save Money !
https://cleantechnica.com/2014/02/03/much-can-solar-panels-save/
Slide12What is the future of solar?
https://in.pinterest.com/explore/semiconductor-diode/
Slide13New Technology – Solar Energy Trees
Tree Leaves - Organic Solar Cells
Each leaf is a power converter
Multi-converter system: collect energy from solar, wind and heat temperature Trunks – 3D Printed Wood-based Biocomposites
http://www.alternative-energy-news.info/3d-printed-solar-energy-trees/
Slide14Pros and Cons
Advantages
Disadvantages
1. Renewable/Sustainable1. Intermittent2.
Abundant/Good Availability2. Energy Storage (Expensive)3. Low
Maintenance
3. Pollution
(solar panel manufacture)
4. Silent
4. Exotic Materials vs Efficiency
5. Government Support
5. Require Space
……
……
Slide15Solar Energy Challenges
Energy Storage
Cost
Semiconductor material used as solar cellSolar panel manufactureElectricity generation?Low EfficiencyOnly about 20% - 40% efficiencySocial AwarenessReliabilityPre-investment
Slide16Question and Discussion
How to improve solar energy efficiency?
Technology Improvements
How to make solar energy more accessible to the general public?How to further reduce the cost?Do you want solar energy?
Slide17Reference
1.
"Green
Energy." On DeviantArt. Accessed February 13, 2017. http://graphican.deviantart.com/art/Green-Energy-78673552.2. "Solar energy." Dictionary.com. Accessed February 13, 2017. http://www.dictionary.com/browse/solar-energy
.3. King, Laiza
. "How Solar Energy Is Changing the World Using New Technologies." The Huffington Post. Accessed February 13, 2017. http://www.huffingtonpost.com/laiza-king-/how-solar-energy-is-chang_b_10071270.html
.
4. Http
://www.facebook.com/luluchang79. "China is now the world’s largest solar power producer." Digital Trends. February 06, 2017. Accessed February 13, 2017. http://www.digitaltrends.com/cool-tech/china-solar-energy/.
5. Photovoltaic
(Solar Electric)." SEIA. Accessed February 13, 2017. http://www.seia.org/policy/solar-technology/photovoltaic-solar-electric
.
6. "Semiconductor
Diode." Pinterest. Accessed February 13, 2017. https://in.pinterest.com/explore/semiconductor-diode
/.
7. "How
Much Are Solar Panels? Wrong Question. Ask How Much Solar Panels Can Save You."
CleanTechnica
. February 03, 2014. Accessed February 13, 2017. https://cleantechnica.com/2014/02/03/much-can-solar-panels-save
/.
8. Richardson
, Luke. "How is Solar Energy Used? The 5 Most Common Examples of Solar Power."
EnergySage
. December 14, 2016. Accessed February 13, 2017. http://news.energysage.com/most-common-solar-energy-uses
/.
9. "3D
Printed Solar Energy Trees."
AENews
. Accessed February 13, 2017. http://www.alternative-energy-news.info/3d-printed-solar-energy-trees
/.
10. Agnes
Peterson et al. "Solar Energy Pros and Cons." Energy Informative. Accessed February 13, 2017. http://energyinformative.org/solar-energy-pros-and-cons/.
11. "Why
It Is Not More Widely Used." Problems With Solar Energy. Accessed February 13, 2017. http://www.solarpoweristhefuture.com/problems-with-solar-energy.shtml.