Carbon Footprint and Achieving a Green Environment


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Carbon Footprint and Achieving a Green Environment

  1. 1. Carbon Footprint and Achieving A Green Environment Presenter: Koby Plaschkes
  2. 2. Carbon Footprint A measure of the total amount of carbon dioxide (CO2) emission of a defined population, system or activity, considering all relevant sources, sinks and storage within the spatial and temporal boundary of the population, system or activity of interest
  3. 3. Understanding Carbon Footprint Indirect control direct control
  4. 4. US personal average co2 generation
  5. 5. Carbon Footprint – Detailed Breakdown More PV = Less CO2
  6. 6. A “Green” World Average CO2 emission for electricity is 1.64 pounds (0.75 Kg) per kilowatt-hour "Typical" annual CO2 emission per household is 20,000 pounds (9 tons) based on 1,000 kWh/month
  7. 7. A “Green” World In simple words and numbers  1 kWh produced from natural gas emits 0.18 kg of CO2  1 kWh produced from coal emits 0.33 kg of CO2  1 kWh produced with Diesel emits 0.29 kg of CO2 1 kWh produced by the combination of all sources of renewable energy emits 0.04 kg of CO2
  8. 8. A “Green” World A total world electricity consumption (Kwhours) • 2005 - 17 trillion • 24 Trillion by 2015 • 33 Trillion by 2030 (1 Trillion = 1,000,000,000,000)
  9. 9. A “Green” World So what are the chances of generating this lot from solar power ? Let’s calculate…
  10. 10. A “Green” World The better parts of the world for insolation (amount of solar power received from the sun) receive an average of around 250 2 watts/m (365 days per year)
  11. 11. A “Green” world That amounts to around: 250x24x365/1000 = 2,190 Kw hours per square meter per year Or we could say that a sq. Km receives around: 2,190x1000x1000 = 2.19 billion Kw hours per year.
  12. 12. A “Green” World Following on from this, we can calculate that: 33 trillion/2.19 billion = 15,000 sq Km would receive enough energy to meet the requirements of 2030
  13. 13. A “Green” World If we assume that our method converting that energy (PV technology) is only around 15% efficient, then we would need 100,000 sq Km Then we would need to double that to allow room for roads and other infrastructure within our solar collecting area, therefore requiring 200,000 sq Km of the earths surface
  14. 14. A “Green” World The Sahara desert is around 9 million sq Km The Arabian desert is around 2.3 million sq. Km The Australian Great Sandy desert is around 2.3 million sq Km And House roofs… Open Landscapes fields… Commercial, Industrial & Public Buildings… These sort of areas are available
  15. 15. A “Green” World This is just an exercise to illustrate how only a small proportion of the earths surface could produce all the worlds electricity
  16. 16. Carbon Footprint and Achieving A Green Environment You are most welcome to visit our web site again and watch other video tutorials in your areas of interest.