Coal is a combustible black or brownish-black sedimentary rock normally occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable […]

Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is energy that determines the temperature of matter. Earth’s geothermal energy originates from the original formation of the planet, from radioactive decay of minerals and from volcanic activity. The geothermal gradient, which is the difference in temperature between the core of the […]

Wind power, as an alternative to fossil fuels, is plentiful, renewable, widely distributed, clean, and produces no greenhouse gas emissions during operation. A large wind farm may consist of several hundred individual wind turbines which are connected to the electric power transmission network. The construction of wind farms is not universally welcomed because of their […]

In today’s climate of growing energy needs and increasing environmental concern, alternatives to the use of non-renewable and polluting fossil fuels must 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 […]

In many developing countries wood has been used as a fuel. The situation is growing so desperate that wood is poached from forest reserves. As a result the ecosystem is degrading deplorably. So, in order to protect the natural environment, there is every necessity of producing alternative sources of energy for the needs of the […]

Hydroelectric power is the production of power by using the gravitational force of falling or flowing water, which is the most widely used form of renewable energy. Most hydro electricity comes from dammed water which is released to drive a water turbine and generator. The energy created by the moving water depends on the volume […]

Coal is the product of ancient plant remains that have been compacted and altered by heat and pressure over millions of years. Its formation start within swamp ecosystems, where plants die and are subsequently covered with water and dirt. Being buried under increasingly thicker layers, the dead plant matter is tightly compacted and undergoes structural […]

Natural gas is an extremely important source of energy for reducing pollution and maintaining a clean and healthy environment. The use of natural gas also offers a number of environmental benefits when compared to other sources of energy, particularly other fossil fuels. When most people hear the term natural gas energy, they seem to think […]