Welcome Note

Do you love our Mother Earth? You should have an answer in your heart. How do you take care of our precious earth? Our mother earth is in peril. She is suffering now. Thus, we human must know how to make our earth healthier and cleaner. We do not inherit the earth from our ancestors, we borrow it from our children.There are many energy sources today that are extremely limited in supply. Some of these sources include oil, natural gas, and coal. It is a matter of time before they will be exhausted. Estimates are that they can only meet our energy demands for another fifty to seventy years. So in an effort to find alternative forms of energy, the...

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What is the most promising renewable energy source?

The most promising source of renewable energy is definitely solar energy. This is primarily because the Sun is the most abundant source of renewable energy available on our planet. At this time solar energy, despite its huge popularity, still accounts for less than one percent of total global energy demand, which means that world is still far away from turning solar power into a dominant source of energy on our planet.Fossil fuels will likely continue to rule the energy world, at least for the next 30-50 years, if not till the end of this century. Fossil fuels have tradition and proven technology, not to mention the powerful lobbies on their...

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The need to switch to renewable energy

Climate scientists have long warned us that global warming is accelerating due to the continuous rise of greenhouse gas emissions such as carbon dioxide into the earth’s atmosphere.Unless quick action is taken to reduce or stop such emissions, global temperatures will continue to rise, resulting in irreversible damage to our natural habitat.Josef-Fell ... ‘There’s a need to switch fast to renewable energy to mitigate the impact of rising fossil-fuel cost.’Many governments are convinced of the urgency to develop strategies that could help alleviate global warming by incorporating climate protection strategies into their economic models.Hans-Josef...

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Renewable energy needs a push

FAST-DEPLETING fossil fuels and rising greenhouse emissions have led to a race among nations to drive the agenda of renewable energy (RE).In Malaysia, while the pursuit of renewable resources may pale in comparison to other major countries, there have been a few strides towards this end.Just over the week, the country's largest renewable energy park by Cypark Resources Bhd was launched while a milestone is expected to be marked with the Renewable Energy Act expected to be passed soon. Public participation has also increased, especially following the near-nuclear disaster in Japan which has prompted the masses to urge the Government to relook...

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Renewable energy a growth sector for Malaysia

THE renewable energy sector is fast gaining ground as a new growth area for many countries worldwide with the vast potential it presents environmentally and economically. Renewable energy plays a major role in meeting a country’s energy needs, enabling businesses to reap energy cost savings and revenue while combating global warming.On the homefront, renewable energy is seen as a growth sector that will help propel the country into a high-income economy.The sector, however, is still relatively undeveloped in the country as reflected in the low achievement of renewable energy targets under the Ninth Malaysia Plan (9MP).According to PricewaterhouseCoopers...

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Where Do Electronics Go When They Die?

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10 Ways to Keep Cool at Home Without Air-Cond

Save energy during hot day. It’s easy to keep your house cool without air conditioning. Employing a few basic environmentally friendly principals will help keep you cool and will help you save money. 1. Hot Air Out, Cool Air In The most basic thing you can do to keep your house cooler without air conditioning is to keep as much sunlight out as possible and let cooler air in at night. During the day, keep windows, drapes, blinds or shades closed, especially on the southern and western sides of your home. If you have a porch, you can put up large plastic or bamboo shades to cut down on sunlight. 2. Windows Use white or light colored window...

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10 Tips to Save Energy & Money in Your Home

A whopping 46 percent of home energy use is, umm, energy loss! In other words, no productive energy use at all! Here are simple ways of reversing this, mostly by changes of habit.1. Each degree you turn down the heat saves 3 percent of heating costs, while each degree you raise the temperature of your air conditioner saves 3-4 percent of cooling costs. By changing the temperature by 2 degrees all year, you can save about 2,000 pounds of C02 a year.2. Cook with a slow cooker or a toaster oven (or even a solar oven!) to reduce electrical use from kitchen appliances. For a meal that requires one hour to cook in an electric oven, and which uses 2.7...

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Solar Energy in the future

As the number of people longing for a cleaner environment grows, so does the solar industry.Solar cells are becoming increasingly cost-effective as more distributors enter the market and new technologies continue to offer more choice and new products.We might even see the end of the combustion age in our lifetime.Cars might soon be powered by new fuel cells that create electricity through chemical reaction.Screen-printed solar cells are expected to drive prices down even more.Roofing shingles are capturing the sun's rays and turning them into electricity!Solar panels are being mounted to the sides of houses when roof space is not an option.Pools...

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About Solar Energy

Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on earth. Only a minuscule fraction of the available solar energy is used.Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy's uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation...

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History of Solar Energy

1838 Edmund Becquerel observed and published findings about the nature of materials to turn light into energy. They were considered interesting, but were not pursued. 1860 - 1881 Auguste Mouchout was the first man to patent a design for a motor running on solar energy. Receiving funds from the French monarch, he designed a device that turned solar energy into mechanical steam power and soon operated the first steam engine. He later connected the steam engine to a refrigeration device, illustrating that the sun’s rays can be utilised to make ice! He was awarded a medal for this.His groundbreaking research was cut short though. The French...

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Disadvantages of Hydropower

Ecosystem damage and loss of land Large reservoirs required for the operation of hydroelectric power stations result in submersion of extensive areas upstream of the dams, destroying biologically rich and productive lowland and riverine valley forests, marshland and grasslands. The loss of land is often exacerbated by the fact that reservoirs cause habitat fragmentation of surrounding areas. Hydroelectric projects can be disruptive to surrounding aquatic ecosystems both upstream and downstream of the plant site. For instance, studies have shown that dams along the Atlantic and Pacific coasts of North America have reduced salmon populations...

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Advantages of Hydropower

Economics The major advantage of hydroelectricity is elimination of the cost of fuel. The cost of operating a hydroelectric plant is nearly immune to increases in the cost of fossil fuels such as oil, natural gas or coal, and no imports are needed.Hydroelectric plants have long economic lives, with some plants still in service after 50–100 years. Operating labor cost is also usually low, as plants are automated and have few personnel on site during normal operation. Where a dam serves multiple purposes, a hydroelectric plant may be added with relatively low construction cost, providing a useful revenue stream to offset the costs of dam operation....

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About Hydropower

Hydropower, hydraulic power or water power is power that is derived from the force or energy of moving water, which may be harnessed for useful purposes. Prior to the development of electric power, hydropower was used for irrigation, and operation of various machines, such as watermills, textile machines, sawmills, dock cranes, and domestic lifts. Another method used a trompe to produce compressed air from falling water, which could then be used to power other machinery at a distance from the water. In hydrology, hydropower is manifested in the force of the water on the riverbed and banks of a river. It is particularly powerful when the river...

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History of Hydropower

Early uses of waterpower date back to Mesopotamia and ancient Egypt, where irrigation has been used since the 6th millennium BC and water clocks had been used since the early 2nd millennium BC. Other early examples of water power include the Qanat system in ancient Persia and the Turpan water system in ancient China. Waterwheels and mills Hydropower has been used for hundreds of years. In India, water wheels and watermills were built; in Imperial Rome, water powered mills produced flour from grain, and were also used for sawing timber and stone; in China, watermills were widely used since the Han Dynasty. The power of a wave of water released...

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