As far back as 5,000 years ago, people "worshiped" the sun. Ra, the sun-god, who was considered the first king of Egypt. Most people in North America have seen the solar energy panels on roof tops and in farmers fields. Typically when thinking about Solar Energy we think of 'PV' or Photo-Voltaic panels - those shiny things on house roofs that make electricity. Utilizing the sun's power is considered one of the best sources of Green Energy.
Many subdivision homes are now having companies come in an install panels on their roof for a percentage of energy that is generated. Solar cells are also called photovoltaic cells - or PV cells for short - and can be found on many small appliances, like calculators, and even on spacecraft. They were first developed in the 1950s for use on U.S. space satellites. They are made of silicon, a special type of melted sand.
There are many companies who will install solar energy panels on your roof and pay you a percent of the cost of energy generated. Solar cells are also called photovoltaic cells - or PV cells for short - and can be found on many small appliances, like calculators, and even on spacecraft. They were first developed in the 1950s for use on U.S. space satellites. They are made of silicon, a special type of melted sand.
The Earth receives 174 petawatts of incoming solar radiation at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is mostly spread across the visible and near-infrared ranges with a small part in the near-ultraviolet.
United States has made an investment in both solar energy and wind farms. Argentina has recently decided to increase their solar capacity by 35 times current capacity. North America is still dependent on oil and although there is a huge pollution and environmental price will not actively promote the switch to Green Energy in our lifetime.
The dry, sun-drenched desert areas of the southwestern United States hold enormous potential for large-scale deployment of solar energy facilities and systems. Solar energy can be used to generate electricity, monitor ecosystem conditions, pump water for livestock, and provide lighting and communications in remote desert areas. The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread, large-scale adoption of this renewable energy technology and restore U.S. leadership in the global clean energy race. Our governments have a hard time planning beyond their next election. The chances of them making any tough decisions politically is hard to imagine.
Many subdivision homes are now having companies come in an install panels on their roof for a percentage of energy that is generated. Solar cells are also called photovoltaic cells - or PV cells for short - and can be found on many small appliances, like calculators, and even on spacecraft. They were first developed in the 1950s for use on U.S. space satellites. They are made of silicon, a special type of melted sand.
There are many companies who will install solar energy panels on your roof and pay you a percent of the cost of energy generated. Solar cells are also called photovoltaic cells - or PV cells for short - and can be found on many small appliances, like calculators, and even on spacecraft. They were first developed in the 1950s for use on U.S. space satellites. They are made of silicon, a special type of melted sand.
The Earth receives 174 petawatts of incoming solar radiation at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is mostly spread across the visible and near-infrared ranges with a small part in the near-ultraviolet.
United States has made an investment in both solar energy and wind farms. Argentina has recently decided to increase their solar capacity by 35 times current capacity. North America is still dependent on oil and although there is a huge pollution and environmental price will not actively promote the switch to Green Energy in our lifetime.
The dry, sun-drenched desert areas of the southwestern United States hold enormous potential for large-scale deployment of solar energy facilities and systems. Solar energy can be used to generate electricity, monitor ecosystem conditions, pump water for livestock, and provide lighting and communications in remote desert areas. The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread, large-scale adoption of this renewable energy technology and restore U.S. leadership in the global clean energy race. Our governments have a hard time planning beyond their next election. The chances of them making any tough decisions politically is hard to imagine.
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