Indian and Global Energy Sources
Energy Sources may be classified into the following types :
- Commercial energy sources
- Non commercial energy sources
Commercial energy sources :
- The energy sources that are available in the market and which can be purchased at a definite price from the producing agency are known as commercial energy.
- By far the most important and high grade forms of commercial energy are electricity, coal and refined petroleum products.
- Commercial energy forms the basis of industrial, agricultural, transport and commercial development in the modern world.
- In the industrialized countries, commercialized fuels are predominant source not only for economic production, but also for many household tasks of general population.
- Examples : Electricity, lignite, coal, oil, natural gas etc.
Non commercial energy sources :
- The energy sources that are not available in the commercial market for a price are classified as non-commercial energy.
- Non-commercial energy sources include fuels such as firewood, cattle dung and agricultural wastes, which are traditionally gathered, and not bought at a price used especially in rural households.
- These are also called traditional fuels.
- Non-commercial energy is often ignored in energy accounting.
- They account for only a small percentage of the total energy sources. But still they play a vital role in energy balance in rural areas.
- Example : Firewood, agro waste, animal dung etc used as fuels in rural areas, use solar energy for water heating, for drying grain, fish and fruits, animal power and human power for transport, threshing, lifting water for irrigation, crushing sugarcane; wind energy for lifting water and electricity generation.