Sources of Energy 15 minutes for a simpler way to study

Characteristics of Good Sources Of Energy A good source of energy has the following characteristics :- Safe and Easy to use. Easy to transport. Easy to store. Large amount of work per unit volume or mass. Economical.

Classification of Sources Of Energy RENEWABLE SOURCES OF ENERGY These are those sources of energy which are being produced continuously in nature and are inexhaustible. These are also called non-conventional sources of energy. These resources will last as long as the earth receives light from the sun. These sources are freely available in the nature. These sources do not cause any pollution.

Classification of Sources Of Energy NON-RENEWABLE SOURCES OF ENERGY These are those sources of energy which have accumulated in nature over a long time and cannot be quickly replaced.. These are also called conventional sources of energy. These resources are depleting fastly. It is difficult to discover new deposits of these sources. These sources are the major causes of pollution.

Conventional Sources Of Energy The sources of energy that have been found in nature long ago are known as conventional sources of energy.

Conventional Sources Of Energy FOSSIL FUELS A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. The energy of fossil fuels is in fact that solar energy which was trapped by natural processes a very long time ago. Coal, petroleum and natural gas are the major fossil fuels.

Conventional Sources Of Energy ADVANTAGES OF FOSSIL FUELS Easily Available Stability Produces Large Amount of Energy Transportation Low Cost High Calorific Value Easy Set Up

Conventional Sources Of Energy DISADVANTAGES OF FOSSIL FUELS Environmental Hazards Effects on Human Health Rising Prices Non Renewable Acid Rain Need Huge amount of Reserves

Conventional Sources Of Energy THERMAL POWER PLANTS In a thermal power plant heat energy is converted to electric power. In most of the world the thermal power plant turbine is steam-driven. Water is heated, turns into steam and spins a steam turbine which drives an electrical generator

Conventional Sources Of Energy ADVANTAGES OF THERMAL POWER PLANTS The fuel used is quite cheap. It can be installed at any place irrespective of the existence of coal. The coal can be transported to the site of the plant by rail or road. Less initial cost as compared to other generating plants. It require less space as compared to Hydro power plants.

Conventional Sources Of Energy DISADVANTAGES OF THERMAL POWER PLANTS Huge production of Carbon-di-oxide (CO2) in the atmosphere.  Nuclear thermal power plant demands excessive amount of water for cooling purpose. Low overall efficiency.

Conventional Sources Of Energy HYDRO POWER PLANTS Hydropower or water power is power derived from the energy of falling water or fast running water, which may be harnessed for useful purposes. Flowing water contains Kinetic energy which is used for generating electricity. A quarter of energy requirements in India is met by hydro power plants.

Conventional Sources Of Energy ADVANTAGES OF HYDRO POWER PLANTS The main advantage of hydropower is that the production costs are eliminated and have a higher economic lifetime. The maintenance cost of such sources of “green energy” is very small. Given that hydroelectric power plants do not burn fossil fuels, they do not directly emit greenhouse gases.

Conventional Sources Of Energy DISADVANTAGES OF HYDRO POWER PLANTS Huge projects also involve great risks- risk of rupture (bursting) of the dam . Construction of hydropower can lead to imbalances in ecosystems and landscape change, and over time can be reduced river flow. Sabotage or terrorism threats to the area is another drawback of water power.

Conventional Sources Of Energy WIND ENERGY Wind energy describes the process by which wind is used to generate electricity.  Wind turbines convert the kinetic energy in the wind into mechanical power. A generator can convert mechanical power into electricity.

Conventional Sources Of Energy ADVANTAGES OF WIND ENERGY Renewable Energy Extra Savings for Land Owners Reduces Fossil Fuel Consumption Job Creation Less Air and Water Pollution

Conventional Sources Of Energy DISADVANTAGES OF WIND ENERGY Noise Disturbances Suited to particular region Threat to Wildlife Visual Impact Wind can never be predicted Safety Concerns

Conventional Sources Of Energy BIOMASS ENERGY Biomass is organic matter derived from living, or recently living organisms. Biomass can be used as a source of energy and it most often refers to plants or plant-based materials which are not used for food or feed.

Conventional Sources Of Energy ADVANTAGES OF BIOMASS ENERGY Renewable Energy Source. Very Easily Available. Better for the environment than the fossil fuels. Reduces Landfills. Paid under the RENEWABLE HEAT INCENTIVE. Less Dependency an Fossil Fuels.

Conventional Sources Of Energy DISADVANTAGES OF BIOMASS ENERGY Agricultural wastes will not be available if the basic crop is no longer grown. Land used for energy crops maybe in demand for other purposes, such as faming, conservation, housing, resort or agricultural use.  Additional work is needed in areas such as harvesting methods.

Non-Conventional Sources Of Energy With increasing demands for energy and with fast depleting conventional sources of energy such as coal , petroleum and natural gas. This energy is abundant, renewable, pollution free and eco-friendly.

Non-Conventional Sources Of Energy SOLAR ENERGY Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating and photovoltaics. A device in which solar energy is collected as heat energy is called a solar heating device.

Non-Conventional Sources Of Energy ADVANTAGES OF SOLAR ENERGY Renewable Energy Source Low Maintenance Costs Reduces Electricity Bills Technology Development Diverse Applications

Non-Conventional Sources Of Energy DISADVANTAGES OF SOLAR ENERGY Cost Uses a lot of space Weather Dependent Associated with pollution in transportation and setting up Storage is expensive

Non-Conventional Sources Of Energy TIDAL ENERGY Tidal energy, also called Tidal power, is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity.

Non-Conventional Sources Of Energy ADVANTAGES OF TIDAL ENERGY A very predictable energy source An inexhaustible source Very low costs of operation

Non-Conventional Sources Of Energy DISADVANTAGES OF TIDAL ENERGY Effects on Marine Life High Construction Cost Location Limits

Non-Conventional Sources Of Energy WAVE ENERGY Wave power is the transport of energy by wind waves, and the capture of that energy to do useful work

Non-Conventional Sources Of Energy ADVANTAGES OF WAVE ENERGY Renewable Environment Friendly No damage to land

Non-Conventional Sources Of Energy DISADVANTAGES OF WAVE ENERGY Effect on marine lives Source of disturbance for the vessels Weak performance in Rough Weather

Non-Conventional Sources Of Energy OCEAN THERMAL ENERGY Ocean Thermal Energy Conversion (OTEC) is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters. These plants can operate, if the temperature difference between the surface water and water at depths upto 2 km is 20˚C or more.

Non-Conventional Sources Of Energy ADVANTAGES OF OCEAN THERMAL ENERGY Power from OTEC is continuous, renewable and pollution free. Unlike other forms of solar energy, output of OTEC shows very little daily or seasonal variation. Drawing of warm and cold sea water and returning of the sea water, close to the thermocline, could be accomplished with minimum environment impact.

Non-Conventional Sources Of Energy DISADVANTAGES OF OCEAN THERMAL ENERGY Capital investment is very high. Low efficiency of these plants coupled with high capital cost and maintenance cost makes them uneconomical for small plants. Due to small temperature difference in between the surface water and deep water, conversion efficiency is very low about 3-4%.

Non-Conventional Sources Of Energy GEOTHERMAL ENERGY Geothermal energy is the heat from the Earth. It's clean and sustainable. Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter.

Non-Conventional Sources Of Energy ADVANTAGES OF GEOTHERMAL ENERGY Good for Environment High Efficiency and Low Maintenance More reliable source of Renewable Energy

Non-Conventional Sources Of Energy DISADVANTAGES OF GEOTHERMAL ENERGY Environmental Concerns Possibility of depletion High Investment Costs

Non-Conventional Sources Of Energy NUCLEAR ENERGY Nuclear power is the use of nuclear reactions that release nuclear energy to generate heat. This heat is then used in steam turbines to produce electricity in a nuclear power plant.

Non-Conventional Sources Of Energy ADVANTAGES OF NUCLEAR ENERGY Expense Reliability No Greenhouse Gases.

Non-Conventional Sources Of Energy DISADVANTAGES OF NUCLEAR ENERGY Water pollutants Leaks Harmful Wastes

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