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=**__Alternative Energy__**  = === Alternative Energy is a energy that can replace another energy source without it's undesirable side-effects. For example solar power to be used to power our houses instead of getting electricity from a power plant that burns fossil fuel. Instead of using gasoline which pollutes our earth in our cars, we can use hydrogen cars instead. Below this is a list of six alternative energy sources, their positives and negatives, and some videos that expand on some of the energy sources. Here is a video about Mr. and Mrs. Wolf's house which is run on solar power. ===

=media type="youtube" key="_4xQlevNPQA" height="344" width="425"=  ||=  ||= * **it can make energy 24 hours a day.**
 * =Type of Energy Source= ||=  ||= =Positives= ||=   ||= =Negative= ||=   ||
 * = =Hydro =
 * **waves energy can produce electricity more than the world needs if of what has been harnessed.**
 * **water energy contains two kinds of energy:kinetic energy and potential energy.**

||=  ||= * **A hydroelectric power plant takes up a lot of space and this may cause animal habitats to go lost.**
 * **fish may not be able to swim to sea and aquatic life may decrease in the area of the hydroelectric power plant.**
 * **when we use the released hydrogen as a fuel, we get back only 30% to 40% of the energy that we put in the rest is wasted as heat.**

|| = = = = = = =Nuclear = = = = = ||=   ||= ==== ====

**It does not produce and greenhouse gasses so it does not contribute to Global Warming. It costs the same amount as coal per kilowatt so it is cheap. It also produces very little by-product.** ||= ==== ==== ||= ==== ====

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|| =<span style="color: rgb(255, 179, 0);"> = ||=  ||= <span style="color: rgb(230, 180, 15);"><span style="color: rgb(250, 200, 10);"><span style="color: rgb(0, 0, 0);">*** <span style="color: rgb(248, 221, 42);">solar is more predictable and with certain forms of energy storage may even dispatch able providing power during cloudy periods or during high demand hours after sunset.
 * Even though the by-product of the nuclear process is very small, it is very dangerous. This nuclear waste is toxic and has a very long radioactive lifespan. It also is very expensive to build and maintain a nuclear power plant.**
 * = =<span style="color: rgb(255, 179, 0);">Solar =
 * photovoltaic cells covert sunlight into electricity<span style="color: rgb(248, 221, 42);">
 * <span style="color: rgb(233, 176, 12);"><span style="color: rgb(230, 180, 15);"><span style="color: rgb(245, 182, 10);"><span style="color: rgb(250, 200, 10);"><span style="color: rgb(248, 221, 42);"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(222, 213, 18);">sunlight <span style="color: rgb(241, 187, 19);">can <span style="color: rgb(238, 187, 27);">be used to boil water.
 * <span style="color: rgb(233, 176, 12);"><span style="color: rgb(230, 180, 15);"><span style="color: rgb(245, 182, 10);"><span style="color: rgb(250, 200, 10);"><span style="color: rgb(248, 221, 42);"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(238, 187, 27);">solar airplanes have real value and they will be in our future for spying <span style="color: rgb(243, 188, 43);">on critical areas of conflict

**  ||=   ||= * <span style="color: rgb(248, 200, 63);">**part of the problem with solar power is that is so inefficient to turn it in electricity only 15% for in expensive.**
 * <span style="color: rgb(248, 200, 63);">**electricity from the solar conversion plant costs about 28 cents kilowatt- hour while it costs 10 cents from fossil fuels.**

|| <span style="color: rgb(0, 255, 255);"> <span style="color: rgb(7, 222, 223);"><span style="color: rgb(2, 242, 240);"><span style="color: rgb(81, 251, 241);"> <span style="color: rgb(10, 163, 45);"> ||= <span style="color: rgb(10, 163, 45);"> ||= === === <span style="color: rgb(10, 163, 45);"><span style="color: rgb(10, 163, 45);"> <span style="color: rgb(25, 115, 23);">Plenty of it in the world because it comes from inside the earth. It also takes up very little space for a power plant compared to many other energy plants. It also has zero fuel cost because all the heat you get is from the earth. ||=  ||= === === <span style="color: rgb(10, 163, 45);"> Since the geothermal heat is inside the earth, it is hard to get in some places because you have to go deeper for it, so it is only good for some places like Alaska and Hawaii. It is also pretty expensive to build a geothermal power plant. || =<span style="color: rgb(248, 42, 42);"> = ||=  ||= * **<span style="color: rgb(240, 20, 20);">cleanest to operate. **
 * = =<span style="color: rgb(20, 240, 235);">Hydrogen [[image:http://bioage.typepad.com/photos/uncategorized/standard_electrolysis.png width="86" height="86" caption="external image"]]= ||=  ||= === ===
 * Hydrogen is 2.6 times better than gasoline and hydrogen fusion is 6 million times better than gasoline. It is also the most plentiful gas in the universe. Stars are made primarily of hydrogen.** ||=  ||= === ===
 * Since hydrogen doesn't exist on earth as a gas, we must separate it from other elements. We can separate hydrogen atoms from water, biomass, or natural gas molecules. The two most common methods for producing hydrogen are steam reforming and electrolysis (water splitting). Electrolysis uses more energy than it produces right now.**  ||
 * = =<span style="color: rgb(10, 163, 45);">Geothermal =
 * = =<span style="color: rgb(248, 42, 42);">Wind =
 * <span style="color: rgb(244, 31, 31);">**Chinese people used the wind energy through windmills to pump groundwater.**
 * <span style="color: rgb(244, 31, 31);">**the pharaohs used the wind energy to move the boats.**
 * <span style="color: rgb(244, 31, 31);">**it gives chances for people to work**

||=  ||= ** <span style="color: rgb(245, 50, 50);">


 * <span style="color: rgb(245, 50, 50);">**it takes very big lands that can be used for another purposes.**
 * <span style="color: rgb(248, 48, 48);">**if the windmills are near of the residential areas it makes a lot of noise also it kills a lot of birds which some of them had extinct.**
 * <span style="color: rgb(248, 48, 48);">**wind plants run for few hours of the year .**
 * <span style="color: rgb(248, 48, 48);">**least dependable**

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=**__Nuclear Energy__**= media type="youtube" key="fjgdgAhOzXQ" height="344" width="425"**
 * __How Nuclear Power Plants Work:__

<span style="color: rgb(249, 242, 88);"><span style="color: rgb(73, 240, 10);"><span style="color: rgb(244, 248, 22);">