June 21, 2011
By: Admin
Category: Solar Power
Solar Energy Applications
Solar energy technologies use energy from the sun to produce heat, light, hot water, electricity, and even cooling, for homes, commercial and industrial.
There are a variety of technological applications that have been developed to take advantage of solar energy. Technology can be read further below.
Photovoltaics System
Solar cells work by converting sunlight directly into electricity. The electrons in the semiconductor material, the material used to capture sunlight, will move when the sun’s energy in the form of photons hit it. Solar energy is forcing the electrons to move, occur continuously, and consequently there is also a continuous electricity production. Process, which turns sunlight (photons) into electricity (voltage), called the photovoltaic effect.
Solar Cell Module
Solar cells are usually organized into modules that each module can consist of 40 solar cells. Some modules can be arranged to form a PV line fitted with a fixed angle facing south. Or even could be placed in a sun-tracking device, to get more solar energy throughout the day. Several rows of PV could produce enough power for a house. As for industrial applications or power companies, hundreds of lines of PV can be linked to form one large PV systems and sufficient to meet the electricity needs.
Thin Film Solar Cell
Thin film solar cells use several layers of semiconductor material with a thickness in the micrometer scale. Technology allows to create solar cells integrated into rooftops to the skylights. Even solar cells are designed for applications having the same power with actual roof.
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November 27, 2009
By: Admin
Category: General
New Solar Technology
Solar technologies is now highly developed, with some progress is being developed to be used every day.
Below 10 Solar Technologies to note:
- Water Heating Solar Panel: Pyron Solar Triad uses a special design, short focal-length, lens in the acrylic concentration to reflect and accept the light, effectively concentrate 6.500 solar power in the form of a small light. The second lens capture light and focus on PV cells. According to related companies, HE Optics System produces 800 times more energy than the silicon solar cells.
- Home Solar to Hydrogen Storage: An MIT professor Daniel Nocera, build a company this year to market a technology that can split water and store solar energy. The key of this company is to achieve a breakthrough solar energy to make solar power cheaper.
“The idea is to use solar panels to power the electrolyzer to produce hydrogen which would be stored in tanks. When people need electricity, the stored hydrogen would put through a fuel cell.”
- Solar panel roof that can be printed and painted: If solar power is easy to install as to paint your roof with sunlight resistant paint, it will lower the standard for the installation of solar power at home. This technology called silicon ink, and according to the U.S. National Renewable Energy Laboratory, solar cells showed 18% energy savings.
- Large Panel Solar Film: SunFab ™ system uses silicon thin film technology to market the largest and most powerful panels in the world and combines inexpensive material.
- Organic Solar Concentrators: Engineers at MIT have created a method to transform glass into a high-tech solar concentrator, using color glass to collect and emit light which is usually missing from the panel surface. This technology can create a building for use with glass window film to gather strength. Other companies, GreenSun, has developed a panel of light color where it catch the other parts of the spectrum of the sun, and does not require direct sunlight to work.
- Space Based Solar: Japanese are developing a giant space station with solar power generators to transmit solar power to earth from 36.000 km above the earth within the next 30 years. The Japanese Government supports $ 21 billion project, which includes a space station solar power with solar panels cubical 4km, save electric energy of 1 gigawatt, enough for 300,000 homes in Tokyo.
- Solar Roads: Solar Roadways concept, will make a way to use glass panels to collect and distribute solar energy to illuminate the light at night and hot in winter, with enough remaining energy to light homes and businesses. Discoverer, Scott Brusaw, estimating each mile of solar panels can be illuminated 500 houses, and is expected to make a panel for 12×12 need cost about $ 5,000.
- SunCatcher: Stirling Energy System, contains a solar concentrator in the bowl structure supported by a convex mirror, can be used in Arizona soon. SunCatcher using glass system fitted with a parabolic bowl for concentrating solar power in high-efficiency Stirling engine, with each bowl produces 25.000 watts.
- Solar Nanotechnology: Research workers at McMaster University in Ontario has developed a light-absorbing nanowires formed of excellent photovoltaic materials in thin but durable carbon-nanotube fabric. They also use small particles in a flexible polyster film where can lead to solar cells that are both flexible and cheaper than today’s solar cells.
- Grid Ready for Solar: Andalay AC solar energy panels, made with Akeena Solar technology, integrate the racking, wiring and electrical grounding components to the panel. According to the company, this will against the damage, a lot of money in saving for 30 year lifetime. Andalay AC solar energy panels produce a safe AC power, and can be a safe installation process for users.
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May 30, 2009
By: Admin
Category: Solar Accessories
Solar Collector The Heart Of A Solar Heating System
Executive Summary about Solar Collector by Armand Hadife
Solar energy is accessible in plentiful places around the world. This high temperature produced can be exploited for heating air or water in houses and buildings
Using solar energy is a natural and affordable approach for spaces or water heating. When using solar power for heating purposes you employ a device that will allow capturing the heat of the sun. This device is called a solar collector. A basic solar collector can be made with no difficulties.
The next step is to find a system to help circulate water or air inside the solar collector. In general, devices like fans and pumps are used to push air or water thru the solar collector and from the storage tank to the house.
For the novice, making a solar collector can be a difficult and demanding project. This is why solar collectors are broadly offered online and in solar products shops.
How to Build a Solar Collector
Executive Summary about Solar Collector by Mick Jeys
Building a solar collector is the best way to save money on electricity bills, and can be used to generate electricity or to heat water. The two most popular uses for solar collectors are to heat water and generate electricity.
Solar Collector To Generate Electricity
Typically known as a solar cell or panel, they are typically made from titanium dioxide, and create electricity through the photovoltaic effect. It is now very simple to build your own generator at home quite cheaply by substituting titanium dioxide with cuprous oxide.
Solar Collector To Heat Water
The most common example of this type can be seen in common solar hot water systems, where the hot water tank is actually up on the roof with the solar collector. Trials are being held in Germany to use solar heated water from the summertime to heat homes in the winter.
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May 20, 2009
By: Admin
Category: Solar Heater
Solar Hot Water
Executive Summary about Solar Hot Water by Anna Williams
Solar hot water heating systems are a great way to effectively conserve energy and reduce your energy bill.
Important Facts about Solar Hot Water Systems
- Solar water heaters can be used in any climate.
- The fuel used to run a solar heater is sunshine.
- A solar water heater can reduce your water heating bill by fifty to eighty percent.
- Aside from reducing your energy bill right now, a solar heating system will protect you from future energy price increases.
- When building a new home, or when refinancing, the economic aspect of this becomes even more interesting.
- Using solar power to heat your water will significantly reduce your carbon footprint.
- Solar heaters can be installed in combination with backup systems.
Types of Solar Hot Water Systems
There are two types of systems, “active solar water heating systems” and “passive solar water heating systems.” With a passive system, the water storage tank must therefore always be positioned above the solar water heater collector.
Active Solar Hot Water Systems
There is also the direct circulation system, where water is simply passed through solar heat collector and then routed to the water storage tank for use.
Passive Solar Hot Water Systems
Passive solar water heating systems are usually cheaper than “active solar water heating systems,” as they do not need controls or pumps to circulate the water.
If you live in a warm climate, a passive water heating system might be all you need. Essentially, solar water heating systems consist of a water storage tank and its solar collectors. The solar collectors are used to collect solar energy (which heats water), and the tanks store the heated water. 75% of the energy consumption of the average home is for hot water and heating. The most economical and effective way of using solar power is through the use of solar heating, and solar hot water heaters.
Homemade Solar Hot Water Heater – One of the Easiest Home Renewable Energy Systems You Could Make?
Executive Summary about Solar Hot Water by Denzil De Vries
Installing a solar hot water system is one of the easier projects to undertake if you are keen to create your own home made renewable energy systems.
The key to the solar hot water system is the solar collector. It is just a tank that has been modified to absorb thermal energy from the Sun. So it may be painted black on the external surfaces and have insulation on the internal surfaces to prevent heat loss.
The flat plate solar collector design uses the same principles but is designed to squeeze even more juice out of the Sun. The plate is painted black to again absorb solar radiation and heat. Along the plate is tubing that will hold water. The tubing exposes far more water to the heat than the ordinary old solar collector. This means more water is heated or made hotter.
Where you place your collector is vitally important but is dictated by two factors. It needs to get as much Sun as it can, so a south facing location in the home is best. But it also needs to move water to the boiler system in the home. So the nearer it is to the boiler the better. If the boiler is well located you could position the solar water collector above the boiler and let gravity move the water from boiler and back to collector based on the heat of the water.
A solar hot water system can be a simple as a solar water collector that has no moving parts or electricity to worry about and a connection to your boiler system.
Most people look into a solar hot water heater because they want to save money on their heating bills. With this in mind a solar hot water heater will help to reduce your bills by pre-heating water that goes into your traditional boiler.
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