Solar energy supports all living things on Earth and is the root of almost all energy we use.solar energy makes plants .Solar energy comes from the sun and flows around freely, and can be used can be used as a bio- fuel. The amount of solar energy on the Earth’s surface is huge.The sun is also the main source of non-renewable fossil fuels (coal, gas and petroleum), which was life as plants or animals whose energy came from the sun millions of year ago. Solar Energy is measured in kilowatt-hour. 1 kilowatt = 1000 watts.

external image solar-energy-storage.jpg



Impact
Solar energy saves you money, and whatever investment that receives solar energy is free because it is powered by the sun. solar energy allows you to save energy and electricity in your house,and if your system provides more energy than you use then your utility company can buy it from you, and it will bring your credit up.It is also good because it doesn't pollute, or damage the environment on Earth.The impact on humans are that for a one-time cost you get free electric power for the rest of your life.solar energy is renewable and helps our environment out while gas coal and coal pollute the air. Solar Energy does not contribute to global warming, acid rain or smog. It contributes to the decrease of harmful green house gases.Solar Energy can be used to offset utility-supplied energy consumption. It does not only lower your electricity bill, but will also continue to supply your home with electricity whenever your power cuts out.Solar Energy systems are maintenance free and will last for decades. Once installed, there are no extra fees. They operate silently, have no moving parts, do not release offensive smells and do not require you to add any fuel.


The Future
The future for solar energy is only beginning with it's endless energy source the Sun. People are using solar power for cars, buildings,electricity, and plenty more things.A new solar powered monorail, called the Solar Energy Belt, is proposed for the city of Bologna, Italy. The 5084 meter long train system will provide an eco-friendly way to travel passengers from the city to the airport, and back.Many buildings are now equipped with solar panels in their designs. In the future by 2025 they want half of the United States homes to have solar uses in the household. Germany and Japan are leading in solar uses but the U.S. is catching up.During 2000 and 2001,California has experienced blackouts and soaring energy prices.This have motivated its leaders to change energy sources.. A desert area 10 miles by 15 miles could provide 20,000 megawatts of power, and the electricity needs of the entire United States could theoretically be met by a photovoltaic array within an area 100 miles on a side.

external image lrg-519-sanyo-solar-ark-full.jpgexternal image z-nasa-solar-powered-plane-design.jpg