Solar Energy Informative Speech

Heather Smith Informative Outline Michelle Talasis Topic: Solar Energy General Purpose: To inform Specific Purpose:To inform the uses of Solar Energy to my audience. Thesis:When all of our natural fossil fuels are low or gone, solar energy will be one of the leading sources of energy that we will need in the future. Introduction Attention Getter: Natural fossil fuels, such as coal used for burning, oil used for gasoline, and natural gas used to heat and warm houses, are a threat to the Earth and everything in it. Fossil fuels pollute the air and they are non-renewable and non-recyclable.
We need different energy sources that are renewable and recyclable for our future existence. Unlike fossil fuels, solar energy is renewable and recyclable. When all of our natural fossil fuels are scare or gone, solar energy will be one of the leading sources of energy that we will need in the future. With all of the technology we have today, we can develop different ways to use and harness these energy sources. Reason to Listen:Solar energy is making a big impact on lives today all over the world. The development of solar energy in all ways and technologies is making our world a cleaner, safer, and less dependent nation.
A. Thesis Statement: When all of our natural fossil fuels are low or gone, solar energy will be one of the leading sources of energy that we will need in the future. B. Credibility Statement: My dad is an electrician that puts up solar energy plants for businesses. I had to research for this paper. C. Preview of Main Points: 1. First I will explain solar energy technology and how it can be used in houses. 2. Next, I will explain the uses of solar energy and how it will be helpful saving water. 3. Finally, I will explain the unique uses of solar energy in transportation and military weapons. II. Body A.

People have created new technologies for others to use in their homes, vehicles or buildings. 1. One of the technologies that people have created to be energy efficient is the photovoltaic cells or “solar cells” which use sunlight and convert it into electricity automatically. PVs can be used in anything from watches to an electric grid. They can also be used to provide energy to places where power lines cannot be attached to buildings. “Thermal technologies use the heat from the sun and use it directly in space or water heating in homes and buildings or it is directly converted into electricity,” says Fischer and Finnell.
Thermal technologies are also used for agriculture needs that farmer’s livestock or crops require. With solar energy being used in electrical, heating, and transportation applications, the idea for an energy efficient house would be more probable. Energy efficient improvements can cut energy costs by over 40% in most affordable housing. They help reduce health risks from mold, dust mites, radon, and combustion by-products and other contaminants. These houses have less condensation, and better moisture control and temperature. These energy improvements usually cost less than the savings they offer on utility bills.
Increasing the value of a home is a great investment-paying high energybills are not. Transition:Now that I have discussed new solar technologies that people use in their homes, and for electricity, I will now explain the uses of solar energy in water. A. Solar power has helped with electricity and heat, but it can also help with the growing need for fresh water. 1. “Instead of using fossil fuels and electricity to desalinate water, engineers at the University of Florida have developed a system that uses a gravity-induced vacuum and solar energy. ” (“Here Comes the Sun”) The desalination of water is the same process as nature. . A U-shaped pipe is place in two different containers, one side in salt water and the other in fresh water. ii. A vacuum is then surrounded by a circulator that heats the saltwater and the salt water is then evaporated. iii. The evaporated steam is then condensed and finally the fresh water drips down into a tank. This system have been proved to be 90% efficient, while the solar “stills” only proved to be 50% efficient. Water has been desalinized by solar power for more efficient and inexpensive drinking water and fresh water supply, but it is also being detoxified by solar power for other usages around the house.
Detoxification of water by solar power has proved to be one of the most promising methods to disinfect water, an earth-friendly operation and it does not create harmful emissions. “One way was ZED or Zero Effluent Discharge,” says Inamdar and Singh. i. ZED disposed of inadequately cleaned waste water that is contaminating fresh water resources, the waste water will recycle water properly if it is forced to generate fresh water from the waste water generated by them, and it is economical to use recycled water than to pay for consuming fresh water and wasting waste water.
Transition:Now that we have learned the uses of solar energy in water, I will explain the uses solar energy in military weapons and transportation. Solar power is being used for disinfecting water and electricity, but for transportation and military weapons? 1. Solar power has been used in cruise boats and ferries. “The first boat that used solar power was in Australian waters that won a contract to build another ferry to carry passengers between San Francisco Harbor and Alcatraz Island,” explains Thwaites, a science writer and broadcaster in Australia. i.
The guy who built the solar powered boat is Robert Dane. ii. He wanted to build a boat that was powered by solar power and wind power. iii. He called it the Solar Sailor, which has an electric motor they can power to drive the propeller properly, meaning the boat will be more efficient and easy to move and back up without stalling them. Solar Sailor technology also helped the Navy create UOVs or Unmanned Ocean Vehicles. i. These vehicles could be used to collect data for climate research, ocean exploration, offshore oil exploration and production and even surveillance of pipelines and telecommunications.
Solar power is also being used in the US Military and even some weapons too. “The US Military have installed black and blue solar panels to use in solar-powered battlefield radios and even in tents with solar panels woven into their fabric to power military equipment,” says John Naish, an environmental campaigner. The solar panels are also being used for sensors and radars, which saves troops from being predictable targets when they regularly refuel generators. I. Conclusion Review of Main Points: Today, I explained how solar energy technology can be used in houses.
Second, I discussed the uses of solar energy and how it will be helpful saving water. Finally, I talked about the unique uses of solar energy in transportation and military weapons. Restate Thesis:When all of our natural fossil fuels are low or gone, solar energy will be one of the leading sources of energy that we will need in the future. Closure: If we don’t continue to develop different ways and technology to lessen our needs on all of our natural fossil fuels, water, natural gas, and the environment, we will soon be living in our own human and mechanical waste.

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