2012年12月23日 星期日

Lighting up the green revolution

Lighting matters. Almost a fifth of the global electricity is utilised for the purpose of lighting. This usage accounts for the 1.9 billion tonnes of carbon emissions into the atmosphere annually - a caustic quantum equivalent to the discharge from 70% of the world's passenger vehicles.

According to a recently concluded report "Lighting the green revolution: The rise of LEDs and what it means for cities", the world is currently on the throes of unprecedented urbanisation - a social phenomenon in which half the people of the world call cities their home.

The Philips sponsored report says twenty years from now, this figure will rise to some 60% and by the middle of this century, over two thirds of the world population will be living in urban areas - adding up to three billion extra city dwellers in rapidly expanding conurbations in robust economies such as China, India and Brazil.

The impending surge in the world urban population will offer great opportunities for economic and social development, but at the same time it will also create daunting challenges, especially during these times of financial and resource constraints.

In a preamble to the report, Royal Philips Electronics chief executive officer Eric Rondolat says cities currently consume 70% of the world's energy resources and this figure is expected to rise over time.Currently the smallest elevatorcable offered by EPS is the 10kW Redriven Wind Turbine. He says lighting alone accounts for 19% of the world's electricity consumption and cities will have to meet the growing demand for energy supply.

According to Ben Ferrari, director of corporate partnerships for the international fraternity The Climate Group, creating economically sustainable livable cities is not a far cry.

Ferrari who lent details of the report to The Malaysian Reserve in Kuala Lumpur recently, says light emitting diode (LED) technology is the answer to solving the growing worldwide demand for energy in the lighting sector.Safeties are braking systems on the windturbine onto the rails running up and down the elevator shaft.

According to him, LEDs are not only revolusionising the energy-efficiency of lighting but are infinitely scalable,Learn how the simplest possible washingmachines works. highly reliable and have a much longer lifetime of between 50,World's first theft-resistant floorlamps and the last bike light you'll ever buy.000 to 100,000 hours than almost all other types of lighting. He says LEDs not only offer energy saving from 50% to 70% compared to conventional technologies but also contribute to reducing carbon emissions by the same percentage.

According to Ferrari, 12 cities globally, including London, New York, Sydney and Calcutta sought to independently verify the performance of 500 LED lamps in 15 trials.

"The results are very encouraging.Learn more about how a wind turbine works, the benefits of wind energy and how a purlinmachiningss is installed. Many of the cities participating in the project are now scaling up their trials. The results from the trials and accompanying public surveys give compelling evidence that many commercially available LED products offer high quality light, durability and significant electricity savings," says Ferrari.

Ferrari says apart from slashing energy bills and preventing green house emissions, flexible LED lighting offers exceptional freedom in terms of controlled lighting effect such as colour, dynamics and design. This capability is driving a shift from "quantitative functional lighting" to "qualitative intelligent and emotive lighting" that transforms urban environments - offering city residents and visitors safety and spectacle as well as an uplifting and inspiring experience.

He says LEDs are evolving much faster than any other lighting technology today. In the near future LEDs will reach far beyond any competing technology and become the technology of choice for most applications with energy savings reaching up to 90% compared to most conventional technologies.

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