Energy Choices

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Energy Choices by Mind Map: Energy Choices

1. Renewables

1.1. Water

1.1.1. Hydroelectric Power: energy harvested from running water (rivers,lakes,ocean,etc.) Advantages: Disadvantages:

1.1.2. Tidal: the movement of sea water in and out of turbines Advantages: Disadvantages:

1.1.3. Wave: Advantages: Disadvantages:

1.2. Living Things

1.2.1. Biomass: decaying plants/animal waste used to produce methane Advantages: Cheap, Long Term Sustainable Energy Source Disadvantages: When Burned It Gives Off Greenhouse Gases, If Plants Not Replanted Biomass Is Non-Renewable

1.2.2. Wood: felling chopped trees and burning them to generate heat and light Advantages: Long Term energy Source, Cheap Disadvantages: Produces Greenhouse Gases, High Cost Of Transportation

1.3. Solar

1.3.1. Photovoltaic Cells: conversion of solar radiation to electricity through chemical energy Advantages: Potential Infinite energy Supply, Safe To Use Disadvantages: High Maintenance, Needs Sunshine

1.3.2. Concentrated Solar Power (CSP): focuses heat/energy to one point to generate a steam turbine to make electricity Advantages: Solar Energy Is Renewable, Power Stations Cost Is Equivalent To Fossil Fuel Stations Disadvantages: Relatively New Technology, Requires Area Of High Isolation

1.3.3. Passive: using buildings/pannels to capture and store heat Advantages: Minimal Cost If Properly Designed Disadvantages: Requires architects Who Can Design For Passive Solar Technologies

1.4. Wind: wind turbines turn wind energy into electricity

1.4.1. Advantages: Clean Energy Supply Once Turbines Made, Little Maintenance

1.4.2. Disadvantages: Questions if Birds/Winged Animals Negatively Affected By Turbines, Only Works When Windy

1.5. Geothermal: cold water is pumped into earth and comes out as steam.

1.5.1. Advantages: Potential Infinite Energy Supply, Used Successfully In Some Countries

1.5.2. Disadvantages: Only Works In Areas With Volcanic Activity, Geothermal energy May Calm Down

2. Non-Renewables

2.1. Fossil Fuels

2.1.1. Coal: fossilized plants laid down then mined from seams of coal then burned to provide energy. Advantages: Cheap to mine, Needs no processing, Plentiful Supply. Disadvantages: Cant be Replaced Once Used, Releases CO2 (Greenhouse Gas), Soot From Coal Produces Lung Disease, Coal Mines Lead To Land Polution.

2.1.2. Oil: fossilized plants and micro organisms found in rocks then extracted by oil wells. Afterwards its burned to supply energy for transportation (mostly) Advantages: High Heat of Combustion, Many Uses Disadvantages: Limited Supply, Gives Off CO2 When Burned, Risk of Oil Spills and Oil pipeline attacks (terrorism)

2.1.3. Natural Gas: methane gas trapped in between rocks and extracted by drilling then used in homes to produce domestic cooking and heating. Advantages: High Heat of Combustion, Lots Of Energy Gaines From It, Cleaner Than Oil and Coal, Ready-Made Fuel. Disadvantages: Limited Supply, Gives Off CO2 But Less Than Coal and Oil

2.2. Nuclear Power

2.2.1. Nuclear Fission: Uranium is mined then spit into nuclear reactors to produce massive amounts of energy Advantages: Raw Material Is Cheap, Small Masses Of Material Produce High Amounts of Energy, No Pollutants/CO2 Released Disadvantages: Extraction Costs High, Terrorism, Chance of Uranium Being Used For Weaponry, Nuclear Waste Is Radioactive and Toxic, Reactor Accidents