In today's climate of growing energy needs and increasing environmental concern, alternatives to the use of non-renewable and polluting fossil fuels have to be investigated. One such alternative is solar energy.

Solar energy is quite simply the energy produced directly by the sun and collected elsewhere, normally the Earth. The sun creates its energy through a thermonuclear process that converts about 650,000,0001tons of hydrogen to helium every second. The process creates heat and electromagnetic radiation. The heat remains in the sun and is instrumental in maintaining the thermonuclear reaction. The electromagnetic radiation (including visible light, infra-red light, and ultra-violet radiation) streams out into space in all directions.

Only a very small fraction of the total radiation produced reaches the Earth. The radiation that does reach the Earth is the indirect source of nearly every type of energy used today. The exceptions are geothermal energy, and nuclear fission and fusion. Even fossil fuels owe their origins to the sun; they were once living plants and animals whose life was dependent upon the sun.

Much of the world's required energy can be supplied directly by solar power. More still can be provided indirectly. The practicality of doing so will be examined, as well as the benefits and drawbacks. In addition, the uses solar energy is currently applied to will be noted.

Due to the nature of solar energy, two components are required to have a functional solar energy generator. These two components are a collector and a storage unit. The collector simply collects the radiation that falls on it and converts a fraction of it to other forms of energy (either electricity and heat or heat alone). The storage unit is required because of the non-constant nature of solar energy; at certain times only a very small amount of radiation will be received. At night or during heavy cloudcover, for example, the amount of energy produced by the collector will be quite small. The storage unit can hold the excess energy produced during the periods of maximum productivity, and release it when the productivity drops. In practice, a backup power supply is usually added, too, for the situations when the amount of energy required is greater than both what is being produced and what is stored in the container.


Picture The function of a MPPT is analogous to the transmission in a car. When the transmission is in the wrong gear, the wheels do not receive maximum power. That's because the engine is running either slower or faster than its ideal speed range. The purpose of the transmission is to couple the engine to the wheels, in a way that lets the engine run in a favorable speed range in spite of varying acceleration and terrain.


  1. Effective Solar Tracking System for Optimal Power Generation and Lift Operating Through Solar Power
  2. Wireless Remote Motor Starter with Acknowledgement using Solar Energy Power for Agricultural Application Smart Solar Powered Car
  3. Smart Solar Tracking System for Optimal Power Generation
  4. Solar based Computerized Irrigation System
  5. Solar based Energy Saver Controllers
  6. Solar Cell Voltage Generation with Auto Tracking System
  7. Solar Powered Bike, Solar Power based Two Wheeler Systems
  8. Solar Powered Car, Solar Power based Car Navigation System
  9. Solar Powered Fence - Electrified Perimeter Fencing Systems
  10. Solar Powered Traffic Signals
  11. Solar Water Heater Controller with Temperature Display
  12. A Novel Optimum Operating Point Tracker of the Solar Cell Power Supply System
  13. Solar Powered Wireless Weather Station


  1. Fabrication of Solar powered tealeaf-cutting machine
  2. Electricity and Water Pumping System using Wind Mill
  3. Fabrication of solar irrigation System
  4. Solar Powered Agricultural Water Pumping System with Auto Tracking
  5. Fabrication of Solar Seeds Sprayer
  6. Automatic Water level Sensing Crane
  7. Fabrication of Solar seed Dryer with Auto Tracking
  8. Automatic Moisture and Light Controlling System for Garden
  9. Automatic Water Tape Controlling System
  10. Automatic Packing control Machine
  11. Fabrication of Agricultural Motor Pump Running using Solar Power

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Engineering Sub Titles

Power electronics
Electrical Drives
Power systems
Digital Signal Processing
Digital image processing
Analog Desing
Digital Design


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