1. Renewable
1.1. Biomass-old plants and other waste is burned to produce methane
1.1.1. Cheap, accessible
1.1.2. Still worsens greenhouse effect, crops must be replanted
1.2. Wood- specific type of trees are burned
1.2.1. Cheap, easy access
1.2.2. Not a lot of energy produced, transportation
1.3. Solar poweredd
1.3.1. Solar-photovolatic cells- turning solar radiation into electricity via chemical energy
1.3.1.1. safe, potentially infinite supply
1.3.1.2. Costly, high maintenance
1.3.2. Concentrated solar power (CSP)- where mirrors are arranged to focus solar energy at one point where it heats up creating steam turbine
1.3.2.1. costs the same as fossil fuels, renewable
1.3.2.2. new technology, locational
1.3.3. Solar-passive- solar panels on roofs capturing sunlight
1.3.3.1. minimal cost
1.3.3.2. requires architects
1.4. Water
1.4.1. Hydroelectric Power (HEP)- harnessed from the movement of rivers, lakes and dams to power turbines
1.4.1.1. High quality, creates water reserves
1.4.1.2. Costly to build, dams have major impact on local waters
1.4.2. Tidal-large barrages are built channeling ocean water to make energy through turbines
1.4.2.1. Should be ideal for island countries, generates lots of energy
1.4.2.2. Very costly, will disrupt ocean life
1.4.3. Wave- movement of sea water traps compressed air driving a turbine
1.4.3.1. Smaller, good for islands
1.4.3.2. storm damage, bad for the environment
1.5. Wind- wind turbines like windmills
1.5.1. clean energy, little maintenance
1.5.2. relies on weather, noise pollution
1.6. Geothermal- uses the earths heat and pumps cold water into it creating steam
1.6.1. Infinite supply, used successfully in some places
1.6.2. expensive, only works in volcanic areas
2. Non-renewable
2.1. Fossil Fuels
2.1.1. Coal-Made from burning fossilized plants mined from a source found deep in mines
2.1.1.1. Cheap, needs no processing
2.1.1.2. Used only once, Releases CO2
2.1.2. Oil- liquid made from liquidized fossils found in rocks. Extracted by oil wells
2.1.2.1. Many uses, easy to mine
2.1.2.2. Limited supply, Oil spills
2.1.3. Natural Gas- Methane gas and other hydrocarbons are extracted from rocks
2.1.3.1. Energy gained, ready made fuel
2.1.3.2. Limited supply, Gives off CO2
2.2. Nuclear Fission- Splitting Uranium and adding an abundance of neutrons creates massive amounts of energy
2.2.1. Can last a long time, little amount creates a lot of energy
2.2.2. Lots of money, Radioactive waste is highly toxic