Showing posts with label leds. Show all posts
Showing posts with label leds. Show all posts

Wednesday, 24 September 2008

Bulb Ban = Bulb Hoarders

It may seem irrational to us all that in times when energy costs are going up, some individuals would be wanting to keep their incandescents, but in the run up to the voluntary January 2009 bulb ban (which will see 150W and 100W bulbs removed from all major retailers with all incandescents removed by 2011).

There are good reasons why a ban on incandescents are a good thing, both environmentally and politically. Lighting accounts for anywhere from 8 - 19% of our total energy use, and it is expected that the ban will reduce our energy consumption annually by 5.5%, or 9200GWh, in the process reducing CO2 emissions by 5m tonnes, the equivalent of the expected CO2 saving of the Severn barrage. This also begs the question, why build a £10 billion super structure when in reality all you have to do is ban a bulb, costing a few million pounds, with the same positive outcome. Obviously the barrage can still come along later to reduce emissions even further, provide clean energy and help the government meet renewable energy targets.

Reducing the amount of electricity used in real terms through measures like this also reduce the demand on energy, and the materials used to provide that energy, which also reduces the end cost to the consumer across all major fuel sources. By reducing the total energy used nationwide, you also have a higher output in percentage terms from your renewable energy sources, without having to install further capacity.

But why did the government choose not to go for an all out ban, like Ireland, Australia, New Zealand and the US. This would have made it illegal to obtain the bulbs even from specialist retailers, however how could this be punished under law, it may make an interesting court case followed by the media, and the crime, threatening national energy security .. maybe. But by default with so many countries implementing a ban, manufactures stop production, importation of bulbs in quantity from Asia regions grind to a halt, introducing new smaller supply changes, thus increasing the cost of bulbs, it is likely however to increase the price of the standard bulb dramatically. Already both the 150W and 100W bulbs are a hard to find item at your local supermarket as supplies dry up.

Hence why some people have turned to stockpiling incandescent bulbs, concerns seem to be more aesthetic than safety-conscious.

"It's a bad idea. They're not only bad for the climate but mean a bigger electricity bill. Incandescent light bulbs were invented in the 1880s and use 80% more electricity than energy saving ones. The time has come to move into the 21st Century."
Ben Stewart, Greenpeace


On 16 & 17 April 2008, the Energy Saving Trust carried out a lightbulb ‘Pepsi’ challenge at Bluewater Shopping Centre to see if the public could tell the difference between traditional and Energy Saving Recommended lightbulbs.

For the experiment two identical booths were specially built each with a lounge – one lit with a traditional light bulb and one lit with an energy saving one.



Members of the public were then asked to enter each of the booths for ten seconds and say whether they could tell which one contained the energy saving lightbulb, and which one they preferred.

Out of 761 shoppers, 53 per cent either got it wrong or could not spot the difference, despite 70 per cent of shoppers being confident that they would be able to spot the energy efficient lightbulb before they did the test. The shoppers were not told whether they had guessed right, but 64 per cent of people claimed to prefer the light produced by the energy efficient light bulb.

"I think the results are extremely encouraging and go to show just how much the quality of light from energy efficient lightbulbs has improved since they were first introduced. Not only that, but there are now a far wider range of energy efficient bulbs available, including dimmers. The days of bulky, ugly looking energy efficient bulbs, which gave poor light quality are long gone. Clearly, the public have had their own ‘lightbulb’ moment too, with sales of energy efficient lightbulbs jumping from 10 million in 2006 to 21 million in 2007."
Philip Sellwood, Chief Executive, Energy Saving Trust


Maybe the solution is bulb amnesties in the streets of Britain where you can get rid of your old 100W bulbs in exchange for a free energy saving bulb, that way the county would be rid of those high wattage bulbs, from of course the people willing to give them up.


Related Articles
Voluntary Bulb Ban Initiated
The CFL Mercury Myths
Mercury in CFLs in Context
LED Night Lights

Wednesday, 3 September 2008

LED Night Lights

Kids and adults alike often leave lights on at night, I know I have on many occasions left lights on when I shouldn't, even with CFL bulbs, they still use a tiny bit of energy. However an alternative to this problem is a Light Emitting Diode based night light. LED bulbs are the technology to supersede CFL bulbs, as they last over ten times longer and use as little as a twentieth of energy CFLs use, the only drawback is currently cost and fittings. However they are getting cheaper every single day.

On my visit to IKEA the other day I picked up two night lights, the first an Osram LED plug-in night light which at 0.4W, uses just over 4% of the energy required for a 9W CFL bulb, this is perfect for in the hallway to illuminate it at night. Only £3 with the IKEA Family Card.

The other is a child's portable nightlight called Spoka, design by Bodrul Khalique which makes use of rechargeable batteries and LEDs, priced at £8. You push the head to switch on the light, it's exceptionally red glow does provide reasonable light (if not "makes it look like a window in Amsterdam", my mother's comment, then asks can she have one) and of course you can carry it with you round the house. I have noticed that since using it oppose to normal lights has improved my sleeping pattern, dramatically. A cute alternative to a lamp.

And ... Don't forget just take your old IKEA electronics back to store to be recycled.


Related Articles
Support the Woodland Trust with the Swipe of a Card
The CFL Mercury Myths
Mercury in CFLs in Context

Monday, 31 December 2007

Times Square New Years Eve Ball Goes Green with LEDs

This year revellers at Times Square in New York will be greeted with the most energy efficient new years eve countdown ball ever. The star of the world-famous holiday extravaganza was revamped by Philips Lighting.

The new 6ft (1.8m) ball, weighing about 1,100lbs (500kg), is covered with 9,576 light-emitting diodes, Philips Lighting, which created the light-emitting diodes, or LED bulbs, specifically for the event, says they are smaller but more than twice as bright as last year's lights, which were a mix of more than 600 incandescent and halogen bulbs. And the new lights can create more than 16 million colors for a kaleidoscope of hues against the 672 Waterford Crystal triangles.

More than a million revelers were expected to crowd the streets for the annual New Year's Eve celebration tonight, the $1.1m (£550,000) New Year's Eve Ball will descend creating a kaleidoscope of colours and patterns on each of its 672 crystal triangular panels, emitting a brightness of more than 625,000 lumens.

Whilst I don't want to be a party pooper, again, I have already been nagged for targeting Christmas, I thought I would look at a positive to the NYE ball in Times Square, and that is highlighting LEDs, the news coverage will certainly ensure that this technology is firmly in the minds of individuals as the real alternative for lighting their homes and businesses and not just a big ball.

LEDs last about 100 times longer than incandescents, 10 times longer than CFLs, and use about 1-3w per light fixture depending on the brightness you require. The technology is becoming more mainstream, and prices are decreasing. I have seen bulbs for as low as $10/£5, so in terms of value compared to incandescents they are value for money.

Typical home energy bill savings by implementing LED lighting in your home is about 18% (from incandescents) and 5% (from CFLs). Offices adopting the technology could save 37% off their energy bills (from incandescents) and 10% (from CFLs.

Don't forget if you do replace your old bulbs, please recycle, especially if you are replacing CFLs which contain mercury.

AddThis Social Bookmark Button