1. Biomass
By: Seth Pratt

2. What Is Biomass energy and when is it used
Biomass is either living or recently dead biological matter.
In the US it has come mostly from wood, waste, and alcohol fuels. However, it has also recently come from corn. 
It can be made (theoretically) from any material that is or was alive.
Biomass is used in factories, fuels, and generating electricity.
Biomass is living or recently dead biological matter that can be used for fuel or industrial production
United States, it has come from three primary sources: wood, waste, and alcohol fuels. More recently, it has come from corn as well. It can also come from plants like switch grass and hemp – and sometimes, even animal fats. Biomass energy can theoretically be made from any material that is, or was, living.

3. Advantages and Disadvantages
Advantages Disadvantages
Biomass is an infinite source of energy.
Reduces the amount of carbon that is released.
It is less expensive than traditional fuel sources.
Biomass isn't as efficient as fossil fuels.
It can lead to more deforestation.
Biomass plants require more space.

4. Biomass Usage

5. Bibliography 2
hCurricula-Intermediate-BiomassBiofuels/SwitchCurricula- Intermediate-BiomassBiofuelsFactsheet.pdf
disadvantages
biomass-in-the-us-since-2006/

6. Geothermal Energy
By Paris Hodge

7. Geothermal energy- a type of renewable energy that is generated deep within the earth; produced by the breakdown of radioactive elements and high pressure together

9. -To get geothermal energy you need to drill wells into earth's crust
-To get geothermal energy you need to drill wells into earth's crust.  -" The heat is extracted with a variety of methods but in most cases is drawn from the Earth using water and steam." -Hot water from the earth can be used to heat homes and buildings, this is done by either directly circulating the hot water through buildings or pumping it through a heat exchanger that takes the heat and brings it to the building.  -Geothermal heat can also produce electricity in a geothermal power plant.  -The electricity is generated when the geothermal heat produces steam that makes the turbines spin in a generator.

10. The geothermal technology can only be used in regions that are volcanically and tectonically active. Examples: Iceland, Indonesia, New Zealand, Hawaii, California, and Ecuador. If geothermal energy is managed appropriately, is a renewable and sustainable form of energy, because it produces electricity using the natural heat from Earth. Geothermal produces little to no greenhouse gas emissions.

11. Tidal Energy
By Jawahir Alhaddad

12. What is Tidal Energy When is it the best choice
Tidal energy is the use of waves to create energy.
This machine works by placing a turbine in a narrow channel and when the tides come in and out the turbine moves creating energy.
When is it the best choice
The world is running out of power and now is the best time to use it

13. Usage
US usage
Global usage
While the US doesn’t use tidal energy now, there is potential. 90% of the US's tidal resources are located in Alaska, making it a good spot to start a tidal energy powerplant.

14. Pros and cons 1. Renewable energy
Advantages
disadvantages
1. Renewable energy
2. Predictable- the tides are easy to predict 
3. Effective at low speeds
1. Building the machinery is expensive
2. The machinery must be close to land

15. Oceanic Thermal Energy
By Maggy Carter

16. Advantages and Disadvantages of Oceanic Thermal Energy
OTEC could prevent burning approximately 1.3 million barrels of oil per year.
Large-scale OTEC is offshore and will not compete for land, food or freshwater.
There are enough resources around the world to supply enough energy for 4 times humanity's electrical needs.
1 offshore commercial-scale plant could prevent over ½ a million tons of CO2 emissions per year. (over 100k cars)
OTEC requires expensive, large- diameter pipes submerged nearly a mile below the ocean's surface. Many countries that are between the Tropic of Cancer and the Tropic of Capricorn (within viable geographic belt) can't economically afford to build this infrastructure.
OTEC facilities are stationary surface platforms, are essentially considered artificial islands and, therefore, their exact location affects their legal status under the United Nations Convention on the Law of the Sea treaty.

17. Circumstances in which OTEC is the best choice...
OTEC uses the ocean's warm surface water with a temperature of around 77°F to vaporize a working fluid, which has a low-boiling point. The vapor expands and spins a turbine coupled to a generator to produce electricity.
OTEC offers less dependence on fossil fuels, lighter environmental impact and reduced carbon emissions.

18. Global usage of OTEC
US usage of OTEC

19. Solar Energy
By Jessica Yin

20. What is Solar Energy?
Solar energy is the heat and light energy from the sun.
We use solar panels to harness solar energy in the day time and convert it into energy we can use.

21. Solar Energy Use in the U.S. and Worldwide

22. Pros and Cons of Solar Energy
Pros: less oil and coal usage, which is good for the environment as it will produce less pollution
Cons: Production of solar panels is not good for environment, as we do not have solar powered factories yet
Solar Panels are best used in places where there is a lot of sun, so shaded regions or areas where there is not a lot of light (for example, the arctic) would not be able to get as much solar energy. However, the desert or sunny prairie would benefit well from solar panels.

23. Wind energy
Dania Aljafari

24. What is wind power?
The use of wind turbines makes power out of the air flow in the atmosphere
Electric generators use the mechanical energy the wind turbines produce 
This provides electricity to us with a less harmful impact on wildlife

25. When wind energy is most beneficial
It's best to use in places that have enough space to fit the turbines
Places with a lot of wind will benefit a lot more than places with a little bit of wind 
The most energy can be saved in those places 

26. Benefits
Benefits of using wind energy would be: Doesn’t cost any money Renewable resource (the wind) Doesn't pollute the environment Wind is part of nature/ it is a natural occurrence Much more efficient than fossil fuels Cost of fossil fuels will begin to rise with the decrease of the resource's availability Can be accessed easier than the fossil fuels and other oils

27. Disadvantages 
Disadvantages of using wind power would be: Initial cost (the construction of the wind turbines is very expensive) New technology would be needed to lower the costs of the construction of wind turbines Aesthetic impact Wildlife- could harm flying animals (birds could be killed due to the rotors) Noisy Remoteness- advantage due to taking up less space but mainly disadvantage because of travel costs and maintenance

28. US Usage VS World Usage

29. Alternative powers
HYDROGEN

30. HOW DOES IT WORK?
Hydrogen power is fueled by hydrogen power cells, which consists of  hydrogen and oxygen atoms combining to make an electrical current.

31. Benefits & Disadvantages
 Powers cars
Different types of fuel cells with larger capacity energy according to the appliance( cell phones, laptops, military applications, etc.)
Rocket fuel
Renewable
Hydrogen is abundant
Hydrogen stations for cars are only mostly located in Cailfornia so switching the world onto this car could take decades
Fossil fuels are  sometimes needed to separate atoms of hydrogen and oxygen 
Expensive when it comes to space-  age technology

32.         Us usage             &            World usage

33.         Us usage             &            World usage

34. Good circumstances for use
The best circumstance to use hydrogen would be if fossil fuels are particularly low and almost completely gone the tapping in to renewable hydrogen fuel would be crucial
Another one is for rockets because hydrogen produces little to no pollution