Showing posts with label solar power systems. Show all posts
Showing posts with label solar power systems. Show all posts

Monday, November 17, 2008

Usefulness of solar energy in today's world.

By Ben V. Williams

The once expensive photovoltaic cells can now be obtained at a lower price as the process of producing them becomes easier and faster. These are produced at larger quantities and are smaller I size, thus making them possible for a reliable source of energy supply on a mass scale in the bear future. The prices have lowered to per watt per hour. 17 years ago, the price was doubled.

There's no question about how environment-friendly solar powered electricity generation is. This is an alternative form of energy production that does not emit any hazardous material into the environment and uses something that is naturally available as its source.

Today, solar cells are abundantly found on the rooftops of people's homes. You can use them without much trouble in heating your home, heating water and in producing power for all your needs . There it gets heated and is then supplied inside the home through pipes.

Photovoltaic cells of today enable you to gather heat from the sun and store it even if the sky is full of clouds or if there is a storm brewing. The technology used by Uni-Solar is an example of it.

In addition to the above system, there's another system available known as the PV system. The system is attached to the closest grid of electricity so if a home produces more electricity by its solar system, this energy is channeled into the grid, which can now utilize this energy for electricity production and will not have to depend wholly on hydroelectricity.

Using PV systems makes solar energy production economical for you, and also mitigates the problem of environmental pollution and helps to free up the grid from excessive pressure. Within some towns and suburban communities, such centralized solar collection arrays are becoming quite popular so that they can serve the entire region.

Worldwide, there has been an active interest among large scale corporations to enter into the arena of solar power generation and among other things, it shows how feasible this concept is. Google has already installed a 1.6 MW solar power generation plant on the roof of its headquarters while Wal-Mart will soon outdo this by installing a 100 MW solar power system of its own.

Countries such as Japan, Germany, Switzerland and America are providing benefits such as subsidies and tax deductions to people - whether individuals or companies - who install solar power systems for getting their supply of thermal and electrical power. This kind of interest will only help make it more and more popular and ultimately - affordable!

About the Author:

Friday, November 14, 2008

Solar Power for Homes Is Main Stream Now

By Joe Johnson

Solar power for homes has come a long way since the boxy design of the solar panels most of us are familiar with. Tremendous advancements have been made in solar cell construction that allow many building materials to be manufactured with the solar cells incorporated into their design effectively turning them into virtually undetectable solar panels.


Solar power for homes is supplied through one of two systems. The first is a stand alone solar power system that functions as your sole source of electricity. The other type is a supplemental solar power system which can supply all of your homes electricity depending on sunlight availability, and can utilize the power company grid when solar power is not available.


The basic components to generate solar power for homes are the same whether you opt for a standalone system or a supplemental system. First you have the photovoltaic panels, commonly known as PV or solar panels, these panels are lined with a semi conductor or solar cell that turns the rays of the sun into electricity. This electricity is then routed into a regulator/controller that keeps the current at the voltage/amperage level your system is designed for. The electricity is then routed either into your homes electrical system or into a battery array or storage system that will keep that solar power available when the sun goes down.


As long as your house is hooked up to the power company's grid, you won't need to set up a separate storage system. However, setting up your own storage is more advantageous as your monthly utility bill be reduced further and you'll still have power even during an outage.


Supplementing or replacing your electricity needs with solar power for homes is becoming easier and more affordable than ever. Some building materials include roofing material, awnings, car port roofing and the edges of the panes in your windows. This type of solar panel is called Building Integrated Photovoltaics. When used in roofing material these panels offer the same level of home protection as asphalt shingles while functioning as a solar panel.

The set-up cost of converting to solar power for homes s the real disadvantage, as it can be quite expensive. But there are some things you can do about that. State and federal grants are there to assist you in setting up an alternative energy source for your home, taking some of the financial weight off your shoulders. While the federal rebate might vary from one year to the next, state rebates vary from one state to another; some states offer special low-interest financing as an additional incentive of the green variety along with any rebates.


Besides the fact that you'll make your home greener using solar power for homes, you'll also be seeing lots of "green" with all the savings on your utility bill. You may even be able to eliminate a utility bill altogether. A growing number of utility companies now have a metering program allowing you to sell to the power company any excess power produced by your solar power system. It certainly pays to go green!

About the Author: