Monday, September 7, 2009

Renewable Energy Priority for China

China plans to put even greater effort into developing its renewable energy industry and cut greenhouse gas emissions to maintain sustainable economic growth in the coming years. Investmens worth more than two trillion Yuan, or 10 percent of the nation's gross domestic product (GDP) in 2006, are needed to meet the renewable energy target by 2020, according to the National Development and Reform Commission (NDRC). The exploration of renewable energy is greatly needed in China.

Addressing a press conference in Beijing early this week, Chen Deming, vice minister of NDRC, reiterated that China's medium and long-term target is to boost its fledging renewable energy industry, which is expected to play an important role in sustaining the country's future economic development. Renewable energy is hoped to resolve the serious China’s problem of energy shortage. NDRC plans to raise the ratio of renewable energy in total energy consumption to 10 percent by 2010 and 15 percent by 2020, compared to eight percent at present, Chen said.

Currently, coal annually accounts for more than 70 percent of China's total energy consumption, leaving great potential for the development of renewable energy — hydropower, marsh gas, solar, wind and other clean and renewable energies, he added. According to its ambitious development plan, China's installed renewable energy — hydropower, wind power and solar power generation capacity will increase by 190 million kilowatts, 29 million kilowatts and 1.73 million kilowatts respectively between 2006 and 2020.

By 2020, the nation's installed renewable energy — hydropower, wind power and solar power generation capacity will reach more than 300 million kilowatts, 30 million kilowatts and 1.8 million kilowatts respectively. To achieve this goal, China will have to seek greater international financial support and cooperation to develop its renewable energy industries in the years ahead, Chen said. Renewable energy could contribute to 30 percent of China's total energy supply by 2050, an energy expert estimated on Tuesday.Chinese wind power stations may have the ability to generate 300 to 500 million kw of electricity in 2050 and another 200 million to 300 million kw will be generated by solar energy, Shi Dinghuan, president of the Chinese Renewable Energy Society, said at the Solar World Congress 2007 in Beijing.

The Chinese government also expects and encourages more domestic small and medium-sized enterprises (SMEs), especially private firms, to join hands in the development of the country's renewable energy industry, the vice-minister added. He believes there is enough room for both foreign and domestic companies in the huge renewable energy sector.

By Dilan Soon

Tuesday, June 16, 2009

The Various Ways of Storing Solar Energy

By Naomi West

Solar power is one of the biggest accomplishments that we have made in the the technology world. Thousands of people have placed their time and energy into learning out how it operates and how it has the power to aid us with our average lives. They have discovered that it is able to be utilised to light up homes, warm them, and supply them with the water they need.

Many of us are fascinated by the technology that is solar energy - but hardly any of us recognize precisely how it is able to store all of the power that the solar panels gather. All of the power is from the sun - which is why you cannot gather it during the evening hours when the sun is hidden from us.

Because of this special devices had to be made that would be able to hold it for many hours and with little troubles. There are thermal mass devices that have the power to hold the energy in the form of heat for ordinary temperatures or for distinct seasons.

These devices are more commonly developed with things that can hold up against high heat. This includes earth, stone, and water. Some of the most special and well produced devices have the ability to lower peak demand, lower the heating and cooling requirements, and switch the time it is supposed to be used during the off peak hours.

The phase change materials are also utilised for thermal storage and are some of the most inexpensive kinds. They are more ordinary for residential homes where they are easier to get a hold of and to set up. These materials include Glauber's salt and paraffin wax. The first Glauber's salt solar power heating device was utilised in 1948 in a house in Massachusetts.

Molten salts are used to hold solar power at high temperatures. This is useful for storage medium and are more notable because they are not as expensive and able to hold up against some of the most severe heat temperatures. There are also off-grid PV devices that utilise rechargeable batteries to store extra measures of electrical energy.

Monday, May 18, 2009

Solar Energy Phones

By Jack Smith

Solar energy phones are bound to become the must-have product in the future.? As the energy reduced daily, energy saving is an eternal task. The current cell phones are almost use lithium, Ni-MH are all energy consumption, environmental pollution and difficult to recover. I strongly appeal majority people who with social responsibilities pay attention to this industrys development?

The differentiation competition urge the cell phone emerge one after another, such as business cell phone laptop battery, information security cell phone, invisible cell phone. Recently, a new kind of light energy cell phone shocked this area and attractive enough eyes. Explanting solar energy technology to cell phone has enormous appliance value? What is the technology difficulty? And whether it is becomes to the new sea of cell phone industry or not?

Plenty of consumers cell phone always out of battery, so many people have to take along 2 or 3 batteries when goes out, even someone take along the charger daily. Solving cell phone standby problem is concerned by supplier all along, along with the come forth of cell phone multimedia function, standby problem disturb the Solar panel cell phone industry and consumers all alone. Everybody hope to explants convenient, energy saving, safe and reliable solar energy technology to cell phone, make it becomes to the long-term steady dynamic supporting of cell phone in 3G eras wireless life.?

Users obviously feel that the charge frequency reduced dramatically after they use the cell phone battery which utilizes the solar energy technology. The battery working life increased obviously which convenient to people phone conversation, media and entertainment aspects. Meanwhile, new energy, new material is the inevitable trend of cell phone development. Photo-electricity converts technology full of challenges.

Current domestic chips enterprises is in weakness stage in photo-electricity convert chips and low consumption chips technology, it is difficult to achieve mass production, hence, it is difficult to realize domestic purchasing in a short period. Besides, some domestic solar energy monocrystalline silicon wafer company supplied solar energy silicon wafer with low absorptivity universally, it will affect photo-electricity effect directly. Now many laptop battery manufacturer are using the solar panel to design the new battery accessories.

How to increase the solar panel use area under the circumstance of not affecting the cell phone cosmetic, optimize the battery internal management and enhance the photovoltaic conversion will be the further focus and difficulty in technology development of solar cell phone. Now the solar panel can be used in laptop battery.

China now has more than 400 million mobile phone users with huge potential consumer market. In addition, this technology expect to realize on mobile phone, but also can be expanded to MP3, DV, DC, Bluetooth and other consumer electronics products, the application value is very wide. With gradual growth of market and increased feedback of consumer satisfaction degree, solar energy cell phone will be like a webcam as an important standard device of cell phone and become as a guideline for consumers to choose cell phone. Experts predict that solar energy cell phone battery will be a bright point next year.

Tuesday, April 7, 2009

10 Benefits of Solar Energy

By Justin R

Benefits of Solar Energy

  1. Solar energy is renewable. We never have to worry about running out of sunlight or using it all up. The sun is a consistent power source meaning it's always going to be there every day.
  2. Solar energy is environmentally friendly. Compared to fossil fuels which release greenhouses gases, carcinogens and carbon dioxide, solar cells don't release anything into the air.
  3. Solar panels are extremely reliable. There are no moving parts so you don't have to worry about replacing anything. In fact, most people generate electricity for 1000s of hours with little or no maintenance.
  4. Solar cells make no noise while collecting energy. There are no other renewable energy sources that are completely silent.
  5. In the long run, solar electricity is cheaper than buying it from the power company. There is a start up cost, but then it starts paying for itself. Once you break even, everything after that is profit. Compare this to paying a monthly bill and getting no return on investment.
  6. There is a huge variety of solar panel systems available. Some can cost tens of thousands of dollars, and some cost just a couple hundred. This means anyone can get into solar, there's an entry point for just about everybody.
  7. You're not required to connect to the power grid. You can be completely self-sufficient and live off-the-grid. Imagine never paying another monthly bill or hook-up charge.
  8. Sell excess electricity. If you build a large enough solar panel system, you can make your electric meter spin backwards! Most power companies will gladly buy or credit you for this excess electricity. Contact your local power companies for more details.
  9. Government tax credits. Most governments will provide some kind of tax credit or incentive for people purchasing solar energy systems. On average, rebates usually cover 20-30% of the system cost. Contact your local representatives for more details.
  10. Solar technology is constantly improving. Solar installations are increasing by an incredible 50% every year, most of which are small homemade systems. Learn how to make your own solar panels and use the benefits of solar energy to your advantage.

Saturday, March 21, 2009

Pros & Cons Of Solar Energy

By Anna

Every day, households around the world are using up the planet's resources for energy. If this continues, these energy sources will be depleted quickly -unless alternative renewable energy sources are utilized.

One of the energy sources that modern technology has recently put to good use is solar energy. Solar energy isn't anything new, but new technology advancements have placed solar power more into the mainstream, and it may one day be one of our primary sources of power. -

Advantages of Solar Energy

Since solar energy comes directly from the sun, it is not only renewable, but also accessible in any part of the world. As long as the proper equipment is utilized, unlimited amounts of solar power can be collected and put to good use.

Solar power is also one of the cleanest forms of energy, since it creates no pollution, and produces no greenhouse gases or waste products. For residential uses, the use of solar power minimizes negative impacts on the surrounding environment, making it a safer alternative to wind or hydro power.

Not only is solar energy non-pollutant, in terms of gases, but it also causes zero noise pollution - since there are no moving parts in any of the devices which are used to capture the sunlight. Due to the fact that no moving parts are used, maintenance costs are low as well - only occasional cleaning and periodic battery replacements are needed. Most manufacturers of solar panels provide twenty-year warranties for their equipment, guaranteeing long-life operation.

Solar panels placed on rooftops also double as a heat absorbers, slightly cooling the top area of the house which is directly below the roof.

Disadvantages of Solar Energy

The most obvious drawback of solar energy is its sole dependence on the sun. Once the weather becomes cloudy, or night strikes, energy collection comes to a halt. However, recent advancements of technology now allow the generated power to be stored in special batteries which provide roughly enough electricity to last a night.

This is why solar-powered devices, including flashlights, are gaining in popularity and are proving to be efficient energy savers. Solar panels can also be expensive, because of the materials that are used to create them. And even when these materials are taken out of the equation, the entire process, considering the other devices involved, can be a bit costly. This includes portable devices that utilize solar energy. But most of the cost involved is in the initial purchase and installation of a solar power system - not running costs.

Fortunately, there are some people who sell damaged solar cells, which are much cheaper. These damaged solar cells can be used to build fully functional solar panels, using the application of simple do-it-yourself techniques. Although in every part of the world, there is at least some point in time when the sun shines, it is also true that direct sunlight is needed in order to make the most of the sun's energy - and to generate the highest amounts of power. This significantly restricts the placement of solar panels. And some areas in the world may receive little benefit, due to lesser sunlight.

What's the Bottom Line?

More research and development continues to be invested into this growing technology, and that's a good sign for the future of our households - as solar power may one day be used more frequently than other energy sources. Of course, solar energy isn't perfect, but it makes a great complimentary addition to other energy forms.


Saturday, March 7, 2009

Solar Power Energy

Solar Power Energy System

Now days there are several different things you can use your solar power energy system for home. Solar Powered Cooker- There are lots of plans available to build a solar powered cooker. Solar Powered Lights for the home are probably the most common use of solar power today. The energy we get from the sun is called solar energy. This solar energy powers many homes instead of fuel and oil power. Solar power energy has to be used most effectively and wisely in a home. The ovens and cook stove need to be powered by solar energy.
It is very easy to store the solar energy at home. A solar power system for home is something of a fad these days. In Japan many houses are solar powered and they are comfortable using these energy systems in their homes. Even the Japanese government is encouraging people by giving incentives and rebates to solar powered homes where solar energy system is installed.
In developing countries like India and Africa where many villages are without power and water, solar energy systems are used to power their homes. Many companies in the US are getting into manufacturing solar power systems and builders and developers in states like Nevada, California, Texas and San Francisco are building homes with solar power energy systems in place.
Building material is now made solar enabled so that the power system is insulated while designing the home. Peer pressure and competitive attitude helps home developers to market solar powered homes.

Sunday, March 1, 2009

Solar Energy Equipment

"Install Solar Energy Equipment" System

Well, "Install Solar Energy Equipment" System provides an amazing opportunity for you to finally take action and fulfill that wish. Advantages
This technology is considered highly popular for the following reason: "Install Solar Energy Equipment" System requires almost no special technical/professional skills from the user's side to get outstanding results.

Home Solar Energy Equipment
The Hype around Solar Power
Many people are scratching their heads wondering what in the world a solar panel is or how they can effectively save thousands of dollars each year in energy consumption costs. Home solar energy equipment has become a target market for the typical do-it-yourselfers. What a Solar Panel Is and What It Does
Solar panels are devices that convert energy. What it does is takes the energy that comes from the sun beams through light photons and converts it to usable energy. The solar panel takes these light photons and through its converting system, turns that solar energy into electric energy. Sunrays coming directly to the solar panel are required to do this. The reason why it is universally beneficial to use home solar energy equipment for building solar panels is because of how eco-friendly the energy is. Making your very own solar panel can seem complex but it's actually rather simple. First, you need to get the home solar energy equipment to do the construction.
So How Can I Create My Own Solar Power?
Backyards and lawns are usually the best places to place the solar panels for energy consumption.

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