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Solar energy presentation


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Solar energy presentation

  3. 3. AIM To acquaint the student offrs with the concept of “Solar Energy” and its practical implications.
  4. 4. SEQUENCE OF PRESENTATION We shall discuss about solar energy in the fol three parts:- PART - I  History of Solar Energy Sys  Capacity of a Solar Panel PART – II  Top 10 Countries using Solar Power  Solar Energy System in Pakistan  Common Appls of Solar Energy PART- III  Analysis  Conclusion  Questions & Answers
  5. 5. PART-I History of Solar Energy Sys Alexandre Edmond Becquerel, a scientist of France, discovered solar energy in 1839. He discovered the photo voltaic effect which explains how electricity can be generated from sun light. He claimed that "shining light on an electrode submerged in a conductive solution would create an electric current." However, even after much research and development subsequent to the discovery, photo voltaic power continued to be very inefficient and solar cells were used mainly for the purposes of measuring light.  After 100 yrs, Russell Ohl invented the solar cell, shortly after the invention of the transistor. 
  6. 6. Capacity of a Solar Panel  Solar Panel : 100w  Battery : 700 w  Solar Charging : 7 x hrs  Energy Savers : 4x25w  Light Duration : 7 hrs
  7. 7. PART-II Top 10 Countries using Solar Power Fol are the top 10 countries using solar power in the world:- 1st Germany (9,785 MW) Germany is the world Ldr in using solar tech. Alone, Germany installed 3806 MW of photo voltaic solar energy capacity, which is more than Spain’s total capacity and almost eight times more than the US. Still in future, Germany has a goal of using 100% renewable energy by 2050. So, it is likely that Germany will remain a strong market for solar power.
  8. 8. A Scene of a Solar Panel installation in Germany.
  9. 9. 2nd Spain (3,386 MW) A Scene of a Solar Panel installation in Spain. Spain is the 2nd world Ldr in newly installed photo voltaic solar energy due to the govt’s focus on creating a national solar energy industry.
  10. 10. 3rd Japan (2,633 MW) Japan stands 3rd in the world Ldrs in using solar tech. Govt residential photo voltaic programs, net-metering, high national solar energy goals to reach 28 GW by 2020 and 53 GW by 2030, as well as the sp of local auths and the pvt sector make Japan a world Ldr in this fd. Japan invested 9 billion dollars for solar energy, and their prime minister also announced a plan to install solar power at 32,000 public schools of Japan.
  11. 11. A Scene of Solar Panels installation in Japan.
  12. 12. 4th United States (1,650 MW) A Scene of Solar Panels installation in US. Supportive state lvl policies are a main driver of growth in the US. Many large gr mounted solar projs are in the pipeline due to which the installed capacity in the US is expected to grow significantly in coming yrs.
  13. 13. 5th Italy (1,167 MW) Mixing net-metering and a well-segmented Feed in Tariffs (combined with a lot of sunshine), Italy has become a world Ldr in solar energy. In 2009, Italy experienced the second-largest solar energy growth in the world. Every two months, Italians install more solar power than California does in an entire year.
  14. 14. A Scene of Solar Panels installation in Italy.
  15. 15. 6th Czech Republic (465 MW) A Scene of Solar Panels installation in Czech. Generous Feed in Tariffs and simple administrative procedures have put the Czech Republic on this list. Per capita, it installed more new solar power than any other country besides Germany.
  16. 16. 7th Belgium (363 MW) A Scene of Solar Panels installations in Belgium. The image above shows Belgian solar flowers. Belgium’s success is from “a well-designed Green Certificates scheme”.
  17. 17. 8th China (305 MW) China gets a lot of attention these days for its clean energy push and for good reason. China is a maj solar panel manufacturer but has not installed a ton of photo voltaic itself yet. However, it now has 12 GW of large projs in the pipeline and if those projs are implemented, China is expected to jump closer to the top of the list. According to China’s national energy plan, it is expected to reach a total of 20 GW by 2020.
  18. 18. A Scene of Solar Panels installation in China.
  19. 19. 9th France (272 MW) A Scene of Solar Panels installation in France. France has a well designed Feed in Tariffs for building integrated photo voltaic which dominates the market there.
  20. 20. 10th India (120 MW) Similar to China, India has fast increasing elec demand and it has very high sun irradiation lvls. Its govt has also been moving fwd strongly on clean energy. It has a goal to reach 20 GW by 2020 as well. India could quickly rise higher on this list with proper govt strategies.
  21. 21. A Scene of Solar Panels installations in India.
  22. 22. Current Posn of Top 10 Countries using Solar Power Previous Ranking by 2009 1st Present Ranking Countries Capacity (MW) 1st world Ldr Germany 17,193 2nd Spain 5th world Ldr Spain 3,784 3rd Japan 3rd world Ldr Japan 12,300 4th USA 6th world Ldr USA 2,528 5th Italy 2nd world Ldr Italy 16,361 6th Czech 8th world Ldr Czech 2,022 7th Belgium 7th world Ldr Belgium 2,115 8th China 4th world Ldr China 8,300 9th France 10th world Ldr France 1,025 9th India 1,686 Germany 10th India world Ldr
  23. 23. Solar Energy Sys in Pakistan The world reserves of coal, oil and gas will get exhausted within a few decades. The feasibility of which is still uncertain and contested in many countries of the world including Pak. Solar energy is an alternative solution aval for the future requirements of energy as Pakistan may not be “Oil Rich” but it can definitely be claimed as “Solar Rich”. Therefore, solar energy sys are highly suitable to be installed in Pakistan to cover the energy crises of Pakistan as an immediate measure.
  24. 24. A scene of solar panels installation in Pakistan
  25. 25.  On 29 May 2012, Pakistan inaugurated the first ever solar power on grid power plant in Islamabad. The Proj titled "Introduction of Clean Energy by Solar Electricity Generation Sys" is a spec grant aid proj of Japan International Coop Agency under Cool Earth Partnership.  This proj includes the instl of 178.08 KW Photo Voltaic Solar sys each at the premises of Planning Commission and Pak Engineering Council, Islamabad which would cater to the needs of both, the Planning Commission (P-Block), Pak Secretariat and Pak Engineering Council Buildings. Combining the generation capacity of both the photo voltaic sys, a total of 356.16 KW of elec can be generated by the entire setup.
  26. 26. This is the first on grid solar photo voltaic proj which has the arrangement of net-metering thereby allowing the beneficiaries to sell the surplus electricity to Islamabad Electric Supply Company, the electricity distr company of Islamabad Division. The Project is executed with the grant assistance worth 480 million Yen in three years of time commencing from 2010. 50 to 100 MW of photo voltaic was expected to be installed in 2013, and at least 300 MW in 2014.
  27. 27. Common Appls of Solar Energy
  28. 28. Practical Appls of Solar Energy Solar powered “Auto Rickshaw” NASA designed Solar powered vehicle- “HELIOS”
  29. 29. Solar Chimney
  30. 30. Solar street light Solar cooker used in Rural Areas
  31. 31. Hubble's new Solar Panels unfolding during Servicing Mission 3B in 2002.
  32. 32. Semi autonomous War machine- ”Odysseus”
  33. 33. PART-III Merits     ANALYSIS Solar thermal technology, the conversion efficiency of sun energy is up to 90% in heating appls and up to 45% in power generation and cooling appls. Solar energies pay for themselves within a pd of max up to six & a half yrs and are almost free for it’s svc life up to 20 yrs or more. Solar energy does not cause pollution. If only two lac households switch over from conventional source of heating, 15 to 20 lac KW of our generating capacity can be saved for industrial and agricultural use.
  34. 34.  Solar thermal heating does not create any adverse effects on the environment as it traps sun energy to heat water and space at almost no running cost to the consumers and spins no harmful by-product in the air.  Solar energy can be used in remote areas where it is too expensive to extend the electricity power grid.  So many items such as, calculators and other low power consuming devices can be powered by solar energy effectively.  It is estimated that the world’s oil reserves will last for 30 to 40 yrs. On the other hand, solar energy is forever.
  35. 35. Demerits  Sun-light is free but solar tech is not.  Initial cost of solar water heating sys is more as compared to the conventional sys.  The challenge to the solar engineer is how to capture, concentrate, accumulate and store enough of sun’s sporadic energy for heating and power generation.  Less efficient in cloudy weather and in cold climatic conditions. There is a possibility of failure of the sys, where the temperature falls below the freezing range. For that, additional care should be taken.
  36. 36.  Solar energy can only be harnessed when it is daytime and sunny.  Solar power stations can be built but they do not match the power output of similar sized conventional power stations. They are also very expensive.  Large areas of land are required to capture the suns energy.  Solar power is used to charge batteries so that solar powered devices can be used at night. However, the batteries are large and heavy and need storage space. They also need replacing from time to time.
  37. 37. CONCLUSION Sun is the biggest source of energy in the universe. The utilization of other energy sources like coal energy, wood energy, oil and gas energy, electrical energy etc are increasing day by day as increasing demands of population. So, in a very near future or even today we are hardly meeting our demands of energy from the sources other than “Solar Energy”. Advanced countries are already utilizing solar energy. If we want to overcome our future requirements of Pakistan successfully, we shall definitely have to plan and execute in the direction of achieving max use of solar energy.
  38. 38. Questions?