Monday, November 14, 2011

"GLOBALGREEN" - WindEnergy SolarEnergy links to your Future

Different Types of SolarEnergy Systems plus WindEnergy Systems



Many power plants today use fossil fuels as a heat source to boil water. The steam from the boiling water spins a large turbine, which drives a generator to produce electricity. However, a new generation of power plants with concentrating solar power systems uses the sun as a heat source. The three main types of concentrating solar power systems are: linear concentrator, dish/engine, and power tower systems.

Linear concentrator systems collect the sun's energy using long rectangular, curved (U-shaped) mirrors. The mirrors are tilted toward the sun, focusing sunlight on tubes (or receivers) that run the length of the mirrors. The reflected sunlight heats a fluid flowing through the tubes. The hot fluid then is used to boil water in a conventional steam-turbine generator to produce electricity. There are two major types of linear concentrator systems: parabolic trough systems, where receiver tubes are positioned along the focal line of each parabolic mirror; and linear Fresnel reflector systems, where one receiver tube is positioned above several mirrors to allow the mirrors greater mobility in tracking the sun.

A dish/engine system uses a mirrored dish similar to a very large satellite dish. The dish-shaped surface directs and concentrates sunlight onto a thermal receiver, which absorbs and collects the heat and transfers it to the engine generator. The most common type of heat engine used today in dish/engine systems is the Stirling engine. This system uses the fluid heated by the receiver to move pistons and create mechanical power. The mechanical power is then used to run a generator or alternator to produce electricity.

A power tower system uses a large field of flat, sun-tracking mirrors known as heliostats to focus and concentrate sunlight onto a receiver on the top of a tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use water/steam as the heat-transfer fluid. Other advanced designs are experimenting with molten nitrate salt because of its superior heat-transfer and energy-storage capabilities. The energy-storage capability, or thermal storage, allows the system to continue to dispatch electricity during cloudy weather or at night.


You can build your own SolarEnergy "Photovoltaic Cell" System at home and even sell the power you make, if you build your system is large enough, back to the power company.
Below you will find links to two sites which will provide you with the knowledge to build a solarenergy system in your own backyard, "Home Solar Energy" 






They will also provide you with information on how to build a homemade wind turbine" to supplement the solarenergy system. "Home Wind Power" using an "homemade wind turbine" or wind powered generator is another project you can complete at home using the instruction from the links below. 


"Wind Turbine Design" for residential windpower is just one more way these links will sve you money on you "energy billing".


Check this out today and build your system in as quick as a weekend and they add to it over the course of the coming weeks and months.


CLICK BELOW AND SAVE $$ TODAY



Sunday, October 2, 2011

GlobalGreen - Is the Sun in The RIGHT PLACE for me to produce SolarEnergy ?


via How Stuff Works

Evaluating Your Site's Solar Resource for Solarpower Electricity

The solar resource across the U.S. is ample for solar electric systems—also known as "photovoltaic cell" (PV) systems—because they can use both direct and scattered sunlight. However, the amount of solarpower electricity generated at a particular site depends on how much of the sun's energy reaches it. Thus, PV "photovoltaic cell" systems function most efficiently in the southwestern United States, which receives the greatest amount of solarenergy.
Before you buy a PV "photovoltaic cell" system, you'll want to be sure your site has enough solarenergy to meet your electricity needs efficiently and economically. 
When evaluating your site, you'll also need to consider both the geographic orientation and the tilt of your solar panels—PV "photovoltaic cell" modules—as both can affect your system's performance.


Once you've started confirmed that your location is a workable site for a solarpower system, it's time to locate the knowledge on how to build the system. WindEnergy SolarEnergy provides you with two links below which can help you gain the information you need to build your own "home solar energy" system. Take a few minutes to review the sites and decide which is right for you.


CHECK OUT THE LINKS BELOW 



Thursday, September 15, 2011

Global Green - SolarEnergy Basics

SolarEnergy Basics

Photo of a solar electric system in Colorado with snow-covered mountain peaks in the background.
Solar panels installed on a home in Colorado.
Solar is the Latin word for sun—a powerful source of energy that can be used to heat, cool, and light our homes and businesses. That's because more energy from the sun falls on the earth in one hour than is used by everyone in the world in one year. A variety of technologies convert sunlight to usable energy for buildings. The most commonly used solarenergy technologies for homes and businesses are solar water heating, passive solar design for space heating and cooling, and solar "Photovoltaic Cell" for electricity.
Businesses and industry also use these technologies to diversify their energy sources, improve efficiency, and save money. SolarEnergy "photovoltaic cell" and concentrating solarpower technologies are also being used by developers and utilities to produce electricity on a massive scale to power cities and small towns.

Concentrating Solar Energy Power 

These technologies harness heat from the sun to provide electricity for large power stations.

Passive SolarEnergy Technology 

These technologies harness heat from the sun to warm our homes and businesses in winter.

SolarEnergy  "Photovoltaic Cell" Technology 

These technologies convert sunlight directly into electricity to power homes and businesses.

Solar Water Heating 

These technologies harness heat from the sun to provide hot water for homes and businesses.

SolarEnergy Process Heat 

These technologies use solar energy to heat or cool commercial and industrial buildings.


You can make your own SolarEnergy system at home, you can also supplement it with a WindEnergy System you can build at home as well. Just click the links provide below and get started on a great family weekend project that will  save you money as well.




Sunday, August 21, 2011

Global Green - WindEnergy - SolarEnergy - Location

Picking the Best Location for a Wind Turbine

Where you choose to build your wind turbine is important. Remember that if nearby houses, tree lines and silos obstruct the full force of the wind from your wind turbine, you will not be able to generate as much power.
Also keep the following in mind:
  • Wind speeds are always higher at the top of a hill, on a shoreline, and in places clear of trees and other structures.
  • Remember that trees grow over the years; wind turbine towers do not.
  • Inform neighbours of your plans to avoid conflict later on.
  • Be courteous. Keep the turbine as far away from neighbours as possible. 250-300 m away is typical.
  • Check with the local government for any other bylaws and regulations about zoning.
Wind speeds tend to be higher on the top of a ridge or hill, and for that reason it is a good idea to locate wind turbines at hilly locations. Just remember to keep your turbine away from high turbulence. Neighbours must also be taken into consideration when picking a spot to build your turbine. The farther your wind turbine site is from neighbouring houses, the better.
Do not expect your wind turbine to generate the same amount of power all the time. The wind speed at a single location may vary considerably, and this can have a significant impact on the power production from a wind turbine (Figure 3). Even if the wind speed varies by only 10%, the power production from a wind turbine can vary by up to 25%!
Graph showing wind speed distibution by hour of the day.
Figure 3. Example of wind speed distribution by hour of the day. Values shown are monthly averages of measurements made by anemometers. (Source: US Department of Energy)
If you think this may be something you would like to discover further, check the links below for more information and start making your own windenergy electricity today. Also, included in the information are the details on how to build your own solar energy "photovoltaic cell" PV System.

CLICK BELOW



Tuesday, July 12, 2011

SolarEnergy - "Photovoltaic Cell" System


Many PV "Photovoltaic cell"s, connected in series, form a PV module; several modules attached to a frame form a solarenergy electric panel. A panel can power a stand-alone system, simply and cost-effectively generating electricity away from the power lines, or it can be connected to the power grid, allowing the owner to sell the electricity generated.

Components of Solarenergy Electricity Generation

The basic components of a PV "Photovoltaic cell" system (Figure 7) include:
  • PV modules which are a group of cells that generate an electric field by absorbing sunlight, resulting in direct current (DC) electricity.
  • An inverter which converts the DC electricity from the PV modules into the alternating current (AC) electricity is used in the power grid and is required by most electrical appliances.
Most PV "Photovoltaic Cell" systems in operation use one centralized inverter to convert electricity from multiple panels. These large inverters involve power loss and can be noisy.
Photovoltaic power diagram. Courtesy of Go Solar.
Figure 7. Photovoltaic power diagram. Courtesy of Go Solar.
Microinverters, a new technology, attach directly to each solar module in the power system.

CLICK BELOW 
Obtain the Knowledge Required to Build your own SolarEnergy System



Monday, June 20, 2011

Global Green - WindEnergy - SolarEnergy

Different Types of SolarEnergy Systems plus WindEnergy Systems



Many power plants today use fossil fuels as a heat source to boil water. The steam from the boiling water spins a large turbine, which drives a generator to produce electricity. However, a new generation of power plants with concentrating solar power systems uses the sun as a heat source. The three main types of concentrating solar power systems are: linear concentrator, dish/engine, and power tower systems.

Linear concentrator systems collect the sun's energy using long rectangular, curved (U-shaped) mirrors. The mirrors are tilted toward the sun, focusing sunlight on tubes (or receivers) that run the length of the mirrors. The reflected sunlight heats a fluid flowing through the tubes. The hot fluid then is used to boil water in a conventional steam-turbine generator to produce electricity. There are two major types of linear concentrator systems: parabolic trough systems, where receiver tubes are positioned along the focal line of each parabolic mirror; and linear Fresnel reflector systems, where one receiver tube is positioned above several mirrors to allow the mirrors greater mobility in tracking the sun.

A dish/engine system uses a mirrored dish similar to a very large satellite dish. The dish-shaped surface directs and concentrates sunlight onto a thermal receiver, which absorbs and collects the heat and transfers it to the engine generator. The most common type of heat engine used today in dish/engine systems is the Stirling engine. This system uses the fluid heated by the receiver to move pistons and create mechanical power. The mechanical power is then used to run a generator or alternator to produce electricity.

A power tower system uses a large field of flat, sun-tracking mirrors known as heliostats to focus and concentrate sunlight onto a receiver on the top of a tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use water/steam as the heat-transfer fluid. Other advanced designs are experimenting with molten nitrate salt because of its superior heat-transfer and energy-storage capabilities. The energy-storage capability, or thermal storage, allows the system to continue to dispatch electricity during cloudy weather or at night.


You can build your own SolarEnergy "Photovoltaic Cell" System at home and even sell the power you make, if you build your system is large enough, back to the power company.
Below you will find links to two sites which will provide you with the knowledge to build a solarenergy system in your own backyard, "Home Solar Energy" 






They will also provide you with information on how to build a homemade wind turbine" to supplement the solarenergy system. "Home Wind Power" using an "homemade wind turbine" or wind powered generator is another project you can complete at home using the instruction from the links below. 


"Wind Turbine Design" for residential windpower is just one more way these links will sve you money on you "energy billing".


Check this out today and build your system in as quick as a weekend and they add to it over the course of the coming weeks and months.


CLICK BELOW AND SAVE $$ TODAY



Sunday, June 12, 2011

Globalgreen - SolarEnergy - Powering the Future


Economics and Other Benefits of Active Home SolarEnergy Heating Systems

Active solarenergy heating systems are most cost-effectivehome solarenergy, when they are used for most of the year, that is, in cold climates with good solar resources and good solarenergy cells. They are most economical if they are displacing more expensive heating fuels, such as electricity, propane, and oil heat. Some states offer sales tax exemptions, income tax credits or deductions, and property tax exemptions or deductions for home solarenergy systems.
The cost of an active home solarenergy heating system will vary. Commercial systems range from $30 to $80 per square foot of collector area, installed. Usually, the larger the system, the less it costs per unit of collector area. Commercially available collectors come with warranties of 10 years or more, and should easily last decades longer. The economics of an active space heating system improve if it also heats domestic water, because an otherwise idle collector can heat water in the summer. 


You are able, through "solar panel design", such as the instructional packages below, to build your own "photovoltaic cell" making your own solarenergy panels. These panels can be portable or fixed allowing you to chose how to use your finished product.
Heating your home with an active "solarenergy power cells" "photovoltaic cell"  energy system can significantly reduce your "energy billing" in the winter. A "home solarenergy" heating system will also reduce the amount of air pollution and greenhouse gases, that result from your use of fossil fuels such as oil, propane, and natural gas for heating or that may be used to generate the electricity that you use.
CLICK BELOW



Saturday, June 4, 2011

GlobalGreen - Linking you to SolarEnergy and WindEnergy harnessing methods.




The Benefits of 20% Wind Energy by 2030

According to the American Wind Energy Association, if we increase our nation's wind energy capacity to 20% by 2030, it would…

Reduce Greenhouse Gas Emissions

A cumulative total of 7,600 million tons of CO2 would be avoided by 2030, and more than 15,000 million tons of CO2 would be avoided by 2050.

Conserve Water

Reduce cumulative water consumption in the electric sector by 8% or 4 trillion gallons from 2007 through 2030.

Lower Natural Gas Prices

Significantly reduce natural gas demand and reduce natural gas prices by 12%, saving consumers approximately $130 billion.

Expand Manufacturing

To produce enough turbines and components for the 20% wind scenario, the industry would require more than 30,000 direct manufacturing jobs across the nation (assuming that 30% – 80% of major turbine components would be manufactured domestically by 2030).

Generate Local Revenues

Lease payments for wind turbines would generate well over $600 million for landowners in rural areas and generate additional local tax revenues exceeding $1.5 billion annually by 2030. From 2007 through 2030, cumulative economic activity would exceed $1 trillion or more than $440 billion in net present value terms.
Build your own Windpower Generator 
Click onto the links below and check out the information on how YOU can make your own homemade wind turbine. Review both of these links and see which project is best for you and make it a family build. Spend time with the family and save money in the end. What could be better than that.





Monday, May 23, 2011

GLOBALGREEN - WindEnergy Basics


We have been harnessing the windenergy for hundreds of years. From old Holland to farms in the United States, windmills have been used for pumping water or grinding grain. Today, the windmill's modern equivalent—a "wind turbine design" - can use the windenergy to generate electricity.

How It Works

Windpower turbines, like windmills, are mounted on a tower to capture the most energy. At 100 feet (30 meters) or more aboveground, they can take advantage of the faster and less turbulent wind. Turbines catch the windenergy with their propeller-like blades. Usually, two or three blades are mounted on a shaft to form a rotor.
A blade acts much like an airplane wing. When the wind blows, a pocket of low-pressure air forms on the downwind side of the blade. The low-pressure air pocket then pulls the blade toward it, causing the rotor to turn. This is called lift. The force of the lift is actually much stronger than the wind's force against the front side of the blade, which is called drag. The combination of lift and drag causes the rotor to spin like a propeller, and the turning shaft spins a generator to make electricity.

Applications

Photo of a row of eight, large three-bladed, wind turbines on a sunny day.
These wind turbines near Lamar, Colorado, are part of the 162-MW Colorado Green Wind Farm. Each turbine produces 1.5 megawatts of electricity.
A Windpower turbine can be used as stand-alone applications, or they can be connected to a utility power grid or even combined with a photovoltaic (solar cell) system. For utility-scale (megawatt-sized) sources of wind energy, a large number of wind turbines are usually built close together to form a wind plant. Several electricity providers today use wind plants to supply power to their customers.
Stand-alone windpower turbines are typically used for water pumping or communications. However, homeowners, farmers, and ranchers in windy areas can also use wind turbines as a way to cut their energy billing.
Small windpower systems also have potential as distributed energy resources. Distributed energy resources refer to a variety of small, modular power-generating technologies that can be combined to improve the operation of the electricity delivery system. 


Getting Started
You can make a homemade wind turbine for windpower generation in your own spare time at home. Makes a great family project that will save money while providing great fun for the family.
Simply click on the links bel;ow and see what project suits your needs and get started today.




Sunday, May 15, 2011

GlobalGreen - Linking you to SolarEnergy and WindEnergy harnessing methods.


Photo of solar collectors on a roof for a solar hot water system.
For solar hot water systems, flat-plate solar collectors are typically installed facing south on a rooftop.
The shallow water of a lake is usually warmer than the deep water. That's because the sunlight can heat the lake bottom in the shallow areas, which in turn, heats the water. It's nature's way of solar water heating. 


The sun can be used in basically the same way to heat water used in buildings and swimming pools.

Most solarenergy water heating systems for buildings have two main parts: a solar collector and a storage tank. The most common collector is called a flat-plate collector. Mounted on the roof, it consists of a thin, flat, rectangular box with a transparent cover that faces the sun. Small tubes run through the box and carry the fluid — either water or other fluid, such as an antifreeze solution — to be heated. The tubes are attached to an absorber plate, which is painted black to absorb the heat. As heat builds up in the solarenergy collector, it heats the fluid passing through the tubes.

The storage tank then holds the hot liquid. It can be just a modified water heater, but it is usually larger and very well-insulated. Systems that use fluids other than water usually heat the water by passing it through a coil of tubing in the tank, which is full of hot fluid.

Solarenergy  water heating systems can be either active or passive, but the most common are active systems. Active systems rely on pumps to move the liquid between the collector and the storage tank, while passive systems rely on gravity and the tendency for water to naturally circulate as it is heated.

Swimming pool systems are simpler. The pool's filter pump is used to pump the water through a solar collector, which is usually made of black plastic or rubber. And of course, the pool stores the hot water.


By review in the links below you will find you can make a "photovoltaic cell" solarenergy system right in your own home and also you will be able to harness the winds energy as well to help you cut or eliminate those energy billings.


Take a moment of your time and read and listen to the information in each of the tutorials and this may be something you and your family may like to try. 


Have fun with the family and save money in the end, doesn't get much better. Check it out and you decide.