This document discusses renewable energy sources and their benefits over fossil fuels. It defines sustainable development as meeting present needs without compromising future generations' ability to meet their own needs. Renewable sources are beneficial as they are clean, abundant, produce no harmful waste, can be generated locally, maintain reliable supplies, and produce no greenhouse gases. In contrast, fossil fuels are depleting, polluting, dependent on other countries, less efficient and will become more expensive. Developed countries are pursuing renewable sources for economic development, price stability, fuel diversity and reliability, and environmental benefits, though limitations include variability in sun and wind as well as incomplete solutions and need for improved storage technologies.

1. Renewable Energy Sources
By
V.Saravanan
Energy Management Cell
Thiagarajar College of
Engineering
Madurai

2. What is meant by
Sustainable Development?
“Development which meets the
needs of present, without
compromising the ability of the
future generation to meet their
own needs”

4. Why RES?
 Clean Source of Energy
 Abundant Sources – Do not get depleted
 No harmful waste products
 Many type can be generated at the
location of use – No transmission
 Maintain reliability of supplies
 Competitive markets
 Ending fuel poverty
 No Green House gases

5. Why not Fossil Fuels?
 Depleting supplies
 Pollution
 Green house gases
 Dependent on Other Countries
 Less Efficient
 Will become more expensive

9. UK Renewable Target
 2010 10% of electricity generated from
renewable sources
 Doubled by 2020
 National targets backed up by regional
targets

10. Benefits of RES
 Most Renewable cost little more than
conventional sources – Wind
 Most renewable don’t have volatile price,
since the fuel cost is nil/negligible
 Most renewable have the advantage of
 Environmental benefits
 Waste Management benefits
 Economic Development benefits

11. Why Developed countries
Pursuing RES?
 Economic Development
 Price Stability
 Fuel diversity to increase reliability
 Environmental benefits

12. Limitations of RES
 Solar only in Daylight
 Wind speed highly variable
 Solutions not yet developed fully
 Storage technology being considered