Renewable Energy Alternatives (Biomass and Geothermal Energy (Alternative…
Renewable Energy Alternatives
Biomass and Geothermal Energy
Alternative Energy resources are needed to replace fossil fuels, reduce air pollution, and reduce the emissions of greenhouse gases.
Energy derived from biomass is used for cooking, heating, powering motor vehicles and generating electricity.
Liquid fuels made from biomass, known as biofuels, help to power millions of vehicles. Ethanol is used in gasoline engines, and biodiesel is used in diesel engines.
Biopower is electricity generated from the combustion of biomass
Steam and hot water produced by geothermal energy can be used for generating electricity and for heating.
A ground source heat pump uses underground soil temperature to heat and cool buildings.
Hydropower and Ocean Energy
The movement of river water can be used to generate electricity. Electricity can be generated by using water stored behind a dam in a reservoir or by using the natural movement of a river.
Hydropower is non polluting and relatively inexpensive, but dams can alter ecosystems and disrupt people's lives
The movement of tides and ocean thermal energy can be used to generate electricity. Harnessing tidal energy works best where there is a large difference between the height of water at low and high tides.
Ocean thermal energy conversions is a process that converts thermal energy in ocean water to electrical energy
Solar and Wind Energy
The suns energy can be used to heat buildings and generate electricity
Solar power has many benefits, such as its limitless supply, but it depends on the weather and it is expensive
Wind turbines convert wind's kinetic energy to electricity.
Wind Power is non polluting and effiecent but its supply is unpredictable, and it may damage landscape and wildlife
Energy from Hydrogen
Hydrogen fuel can be produced from the of water or methane
Fuel cells are used to generate electricity