International Research Journal of Education and Technology

Energy The ability to accomplish work. Work is accomplished when objects are movedObjects moved can be very small, e.g. molecules, atoms, electrons, or protons or they can be much larger objects. When forces act on objects and perform work, energy is converted from one form to another (note the law of conservation of energy).Energy resources are broadly classified as:Conventional energy resources (fossil fuels and nuclear) Non-conventional energy resources or renewable resources(solar, biomass, wind, hydro, geothermal, ocean etc)Polycrystalline solar panels are also mad from silicon. However, instead of using a single crystal of silicon, manufacturers melt many fragments of silicon together form the wafers for the panel. Polycrystalline solar panels are also referred to as “multi-crystalline,” or man crystal silicon. Because there are many crystals in each cell, there is to less freedom for the electrons

Key Words: Non-conventional energy resources.