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A Few Interesting Facts About the Sun and Solar Energy

by Chris - November 15th, 2012.
Filed under: Guest Posts.
  • The sun is the most unlimited and renewable source of power known to human kind.
  • The largest solar power plant on Earth is located in the Mojave Desert in California and its power rating is 354 megawatts.
  • In the United States, a residential photovoltaic system’s installation costs $3 to $5 per watt with an approximate return on investment of 8-10 years.
  • In 1931 Thomas Edison said about solar energy: “We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature’s inexhaustible sources of energy — sun, wind and tide. I’d put my money on the sun and solar energy. What a source of power! I hope we don’t have to wait until oil and coal run out before we tackle that”.
  • The total surface area necessary to power the planet with solar energy is only about 375,000 square kilometers; which is about the area of Japan.
  • The regular residential consumption of power in the US for 2010 was 960 kilowatt-hours with a typical monthly price of $110.67.
  • It takes about 40 photovoltaic cells to make 1 solar panel.
  • Solar power is also used to heat swimming pools, heat solar ovens, and deliver power to automobiles and small aircrafts.
  • Energy from the sun is used to produce electricity and to heat domestic water, but it also has other uses such as dehydrating fruits and drying clothes.
  • The first solar panel cell was developed by Charles Fritts in the 1880’s.
  • More energy from the sun reaches the planet in one hour than the world’s population uses in a year.
  • The average size of a residential photovoltaic system is 5 kilowatts.
  • The United States offers a federal tax credit that is worth 30% of the price of installing a solar PV system.
  • A cloudy day or a city with heavy air pollution will considerably lower the efficiency of solar panels.

You can read more about solar energy andsustainabilityat www.gogreenacademy.com

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