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ดูบทความFluorescent prices rise again as rare earth misery continues
Fluorescent prices rise again as rare earth misery continues
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Fluorescent prices rise again as rare earth misery continues |
| Fluorescent prices rise again as rare earth misery continuesFluorescent lamp prices are still climbing as supplies of rare earths remain tight. With stock dwindling, more upheaval in the production of energy-efficient light sources is expected. Philips has increased the prices of its linear lamps by 20 per cent. On the same day Sylvania put the price of T12s up by 15 per cent. A source told Lux that other manufacturers will be announcing their own increases shortly. A report published by the US Department of Energy warned that, of the elements assessed, five of the rare earths classed will be in short supply until 2015 at least. These are: dysprosium, terbium, europium, neodymium and yttrium. Shortages of these elements are expected to affect the availability of fluorescent lighting over the next few years. The report said: ‘As lighting energy efficiency standards are implemented globally, heavy rare earths used in lighting phosphors may be in short supply.” For many manufacturers, CFLS are manufactured in China and exported while it is cheaper to ship over the raw materials for linear tubes and construct them at home. The report said: ‘This means that in a tight supply situation with increasing demand for the heavy rare earths contained in phosphors, domestic fluorescent lamp manufacturers may have difficulty obtaining rare earth phosphors.’ Global attempts to prevent the sale of incandescent lamps are set to increase demand for fluorescents as well as a push toward other eco technologies. Fluorescent lamps contain phosphors made with europium, terbium and yttrium, three of the five heavily constrained materials. The report states that the projected increase in demand for CFLs and energy-efficient linear lamps suggests ‘upward price pressures for rare earth phosphors in the 2012-2014 timeframe’. ‘In the future, LEDs (which are highly efficient and have much lower rare earth content) are expected to play a growing role in the market, reducing the pressure on rare earth supplies.’ Halogen incandecents, LEDs and OLEDs use little or no rare earths. There is speculation that if the rare earth situation continues as expected it will force further development in other areas. Fall in LED prices ‘to accelerate’ The decline in prices for LED lamps and luminaires is set to accelerate in the next few years, says a top green energy research company. Not only are LED costs projected to decline rapidly, but each year those projections will accelerate, an indication that the rate of change continues to be underestimated, says Pike Research. ‘By the end of our 10-year outlook, LED solid state lighting will not only capture over half of the global market, but the lifetimes of these lamps will drive a steady decline in the commercial lamp market despite a steadily growing base of new buildings and access to electricity in emerging countries,’ says the company. LEDs are the greatest revolutionary change in lighting since the commercialisation of the fluorescent lamp in the 1930s. Read the original article in this month’s edition of Lux Magazine. BY: www.Ledsave.co.th |
26 มกราคม 2559
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