August 24, 2017

Solar Energy

Though costly to implement, solar energy offers a clean, renewable source of power.


Solar energy is the technology used to harness the sun's energy and make it usable. As of 2011, the technology produced less than one tenth of one percent of global energy demand.

Many are familiar with so-called photo voltaic cells, or solar panels, found on things like spacecraft, rooftops, and handheld calculators. The cells are made of semiconductor materials like those found in computer chips. When sunlight hits the cells, it knocks electrons loose from their atoms. As the electrons flow through the cell, they generate electricity.

On a much larger scale, solar-thermal power plants employ various techniques to concentrate the sun's energy as a heat source. The heat is then used to boil water to drive a steam turbine that generates electricity in much the same fashion as coal and nuclear power plants, supplying electricity for thousands of people.


In one technique, long troughs of U-shaped mirrors focus sunlight on a pipe of oil that runs through the middle. The hot oil then boils water for electricity generation. Another technique uses movable mirrors to focus the sun's rays on a collector tower, where a receiver sits. Molten salt flowing through the receiver is heated to run a generator.

Solar energy is lauded as an inexhaustible fuel source that is pollution- and often noise-free. The technology is also versatile. For example, solar cells generate energy for far-out places like satellites in Earth orbit and cabins deep in the Rocky Mountains as easily as they can power downtown buildings and futuristic cars.


Solar energy doesn't work at night without a storage device such as a battery, and cloudy weather can make the technology unreliable during the day. Solar technologies are also very expensive and require a lot of land area to collect the sun's energy at rates useful to lots of people.

Despite the drawbacks, solar energy use has surged at about 20 percent a year over the past 15 years, thanks to rapidly falling prices and gains in efficiency. Japan, Germany, and the United States are major markets for solar cells. With tax incentives, and efficient coordination with energy companies, solar electricity can often pay for itself in five to ten years.






Also in News

The Most Cost-effective CRM on Earth?
The Most Cost-effective CRM on Earth?

July 17, 2017

What if we gave you the world for $7 ? Well we can't give you the world but we can help you communicate with the people of earth. And yes, we honestly believe we have one of the best suites of communication tools on earth.

You can't go wrong with a 30 day FREE trial. No credit card needed.

And after that seven bucks a month. 

Read More

5000 AerGlo Units Arrive in US
5000 AerGlo Units Arrive in US

July 12, 2017

Rule the Day. Own the Night with AerGlo. Ready to Light up Your Business. Give AerGlo a try. Risk Free Trial. If you are not 100% satisfied return the units in the original carton for a full refund.

Read More

12 Average Things Solar Makes Cool
12 Average Things Solar Makes Cool

July 10, 2017

Solar panels – so mundane. These days, it's not the panel itself, but what it's attached to that allows solar to transcend function and enter the realm of fashionably hip. What can you do with your solar panels? Be inspired by these 12 innovative solar contraptions that are doing their best to keep "green" synonymous with "trendy." Are they succeeding or failing? You be the solar power judge.

Read More