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Home » About Solar Energy

About Solar Energy

Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used.

Solar power technologies provide electrical generation by means of heat engines or photovoltaic. Once converted its uses are only limited by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, hot water, thermal energy for cooking, and high temperature process heat for industrial purposes.

Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight. Active solar techniques include the use of photovoltaic panels, solar thermal collectors, with electrical or mechanical equipment, to convert sunlight into useful outputs. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.
 
S. No. Source System Estimated Potential Achievement as on 30th Sept 2008
I.

Power from Renewable

   
A.

Grid-interactive renewable power

(MW) (MW)
1. Wind Power 45195 9521.8
2. Bio power (agro residues and plantations) 16881 656.60
3. Bagasse cogeneration 5000 993.83
4. Small hydro power (up to 25 MW) 15000 2220.99
5. Energy recovery from waste(MW) 12700 55.25
6. Solar photovoltaic power --- 2.12
 

Sub total (A)

84776

13450.59

B.

Captive/combined heat and power/distributed renewable power

  (MW)
7. Biomass/cogeneration (non-bagasse) --- 136.70
8. Biomass gasifier --- 102.21
9. Energy recovery from waste --- 32.07
 

Sub Total (B)

---

269.98

 

Total (A+B)

--- 14720.57
II.

Remote Village electrification

--- 5 379 vilages/hamlets
III.

Decentralized energy system

   
10. Family-type biogas plants 120 lakh 40.32 lakh
11. Family-type biogas plants 50 MW/Km2 120 MWp
  i. Solar street lighting system --- 70474 nos
  ii. Home lighting system --- 424692 nos
  iii. Solar lantern --- 697419 nos
  iv. Solar power plants --- 8.0 MW
  v. Solar photovoltaic pumps --- 7148 nos
12. Solar thermal systems    
  i. Solar water heating systems 140 million m2 collector area 2.45 million m2 collector area
  ii. Solar cookers   6.37 lakh
13. Wind pumps   1342 nos
14. Aero generator/ hybrid systems   723.00 kW
IV.

Awareness programmes

   
16. Energy parks --- 516 nos
17. Aditya Solar Shops --- 269 nos
21. Renewable energy clubs --- 521 nos
22. District Advisory Committees --- 560 nos
MW- megawatt; kW- kilowatt; MWp- megawatt peak; m2 – square meter; km2 - kilometre square
 
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