How does this energy source work? Organic material is burned or decomposed and used to produce energy Bioma ss Types: -Wood Burning: heat is used to create steam to spin turbines which create power -Waste-to-Energy Plants: organic waste is burned and heat is created, which produces steam to spin turbines to generate electricity Where are we most likely to find this energy source? What states or countries would this energy source be most beneficial to? -Finland, Sweden, Austria, US -Oregon, California, Nevada, Texas, Kentucky, Alabama, Louisiana, Florida, Georgia, South Carolina, Mississippi, Pennsylvania, New York, Maine, Wisconsin, Minnesota, Iowa, Nebraska, Colorado, Wyoming, Indiana How does this energy source affect the environment? -diverts organic materials from landfills -could have a negative impact on forests -air quality could impacted when the material is burned -high levels of water are needed which could be problematic in areas with limited water supply What is one advantage and one disadvantage to this energy source? Advantages: No harmful emissions in the air, renewable and abundantwe always have organic waste, reduce landfill sizes/dependency Disadvantages: Expensive, inefficient when compared to fossil fuels (often has to be mixed with a fossil fuel to work), we will use more fuel, which will deplete our forests Is this energy source a renewa ble or nonrene wable resourc e? Renewa ble Fossil Fuels (coal, oil, natural gas) Geothe rmal Hydrop ower Fossil fuels are used to heat water, which produces steam and turns turbines, which generates power -China, India, Russia, Japan, Germany, Iran, Canada, US -Kentucky, Pennsylvania, West Virginia, Wyoming -toxic chemicals are released into the air when the fossil fuel is burned -oil spills can kill marine wildlife -acid rain -melting of Polar Ice Caps -global warming Advantages: Easily available, produce large amounts of energy quickly, easy to transport, abundant Magma from within the earth comes close to the surface and heats underground water, which creates reservoirs of very hot water and steam underground. The reservoirs are drilled and the energy produced is used to create electrical energy -Kenya, El Salvador, Japan, Iceland, New Zealand, Italy, Mexico, Indonesia, The Philippines, United States -California, Oregon, Nevada, other Western states -the pumped water often contains high levels of salt, sulfur, and other chemicals which can leach into the general water supply -needs a constant supply of outside water -gases removed from the well can leak into the air (hydrogen sulfide is most common) Advantages: Clean energy (no toxic chemicals in the environment) Rivers are dammed to rise the water level and create falling water. Falling water creates kinetic energy which is captured by turbines and turned into mechanical energy. THe mechanical energy is converted into electrical energy through a generator and the electrical energy is sent to the central power supply -Canada, Brazil, China, United States, Russia, India, Norway, Japan, Venezuela, Sweden -Washington, Oregon, New York, California, Alabama, Tennessee, Montana, Idaho, North Carolina, Arizona, Nevada -Can obstruct fish migration patterns, harm native plants and animals in the river and on land, people can be relocated due to building of dams, methane can form in some reservoirs and be sent into the atmosphere Advantages: Clean fuel force (no pollution), domestic so countries don’t have to rely on other countries, reservoirs offer swimming and other recreational activities, immediate resource that can help during power outages (can go from no output to maximum output quickly) Nonrene wable Disadvantages: Expensive to produce (crude oil can be very expensive), negative impact on human health, dangerous (coal mining, oil drilling) Renewa ble Disadvantages: Not widespread-must have magma hot enough to create reservoirs, high installation cost, difficult to transport Disadvantages: methane and carbon dioxide emissions, disturb habitats, Renewa ble installation can be expensive, depends on water Uraniu m/Nucl ear Solar Wind Uranium is split in a process called nuclear fission; the heat produced from the uranium splitting is harnessed into steam and the steam turns the turbines which in turn generate electricity -Nuclear power plants in over 31 states; NC derives over 50% of its power from nuclear power -also used in 31 countries, including Spain, China, Canada, Belgium, France, Slovakia, South Korea, India, Russia, Hungary, Sweden, Switzerland, England, Mexico, Germany, South Africa, The Netherlands, Japan If a reactor has a meltdown or leaks it releases radioactivity into the air which causes health problems in people and animals and also affects the plant life. Advantage: Nuclear energy is clean; it doesn’t emit any greenhouse gasses. It also very cheap, costing about 2 cents a kilowatt hour EX: Three Mile Island (1979) Chernobyl (1986) Japan (2011) Sunlight heats solar panels which convert sunlight into direct current electricity; an inverter converts the DC electricity into an alternating current, which it sent to an electrical panel to power your lights and appliances (the electrical panel is often called a breaker box) -Germany, China, Italy, Japan, US, Spain, France, Australia, Belgium, England -California, North Carolina, Nevada, Massachusetts, Arizona, New Jersy, New York, Texas, Hawaii, New Mexico -The solar panels need significant land area and can destroy animal habitats -The process to create the solar panels uses many toxic ingredients that can leak out during the manufacturing process Disadvantage: if a nuclear plant fails it can have a catastrophic effect on health, environments, and animals-radioactive waste can stay in the air for years Advantages: Infinitely renewable (we will never run out of sun); easy to use and fairly inexpensive Wind turns two propeller like blades around a rotor; the rotor is connected to shaft which spins a generator to create electricity The Netherlands, India, Germany, France, Spain, England, China, Denmark, Italy, Portugal, the US -Texas, Kansas, Nebraska, Montana, South Dakota, North Dakota, Iowa, Wyoming, Oklahoma, New Mexico Animal habitats can be lost and destroyed when the shaft is installed in the ground and birds and bats fly into the propellers, get caught in the wind and trapped, and die Renewa ble Renewa ble Disadvantages: the initial cost is expensive; has to be used in a location that has ample sunlight; can be inefficient Advantages: No harmful chemicals released into the environment; very cost effective; turbines can be built into existing farm equipment Disadvantages: There must be constant and sustained Renewa ble wind; the turbines are very loud and cause noise pollution; the turbines are large and can be an eyesore