Battle of the bulbs

OntarioVanMan

Retired Expediter
Owner/Operator
Which way do we lean???


Mar 05, 2007 04:30 AM
Tyler Hamilton

The spirit of Thomas Edison, perhaps stirred by Australia's decision to ban the incandescent light technology he first commercialized, isn't going down without a fight.

You see, the American inventor may be dead, but his determination lives on in the company he founded 115 years ago: the mighty General Electric Co.

Three days after Australia announced its plan to phase out the incandescent bulb by 2010, GE put out a press release with the following headline:

"GE Announces Advancement in Incandescent Technology; New High-Efficiency Lamps Targeted for Market by 2010."

The well-timed release added advancements and "new materials" will make the trusty incandescent comparable to compact fluorescent lights (CFLs) in energy efficiency.

The new bulbs will replace traditional 40- to 100-watt household bulbs, said GE, adding that initial production will be twice as efficient as today's incandescent bulbs and will eventually be four times as efficient – comparable to CFLs.

Kevin Nolan, a v.p. of technology at GE, is then quoted saying, "the 21st century version of Edison's bulb provides all the desirable benefits, including light quality and instant-on convenience, as incandescent lamps currently provide at a price that will be less than CFLs."

He said GE also supports and sells CFLs, but believes consumers should have more options. In other words, don't mess with Thomas Edison.

It's funny how the United States always seems to go against the international grain, whether on Kyoto, genetically modified foods or the invasion of Iraq. Now, we're talking the battle of the bulbs.

At a conference last week in Paris, the European Lamp Companies Federation – which includes GE and European rivals Royal Philips Electronic NV and Siemens AG – agreed to push consumers toward using more energy-efficient bulbs.

Philips and Siemens want to work toward a phase-out of incandescent bulbs, similar to the one planned in Australia and proposed in California and New Jersey, while GE doesn't support such a ban. It argues instead for a commitment toward energy-efficiency that is more technology-neutral.

Theo Van Deursen, CEO of Philips, criticized GE in an Associated Press report, saying the U.S. company's plan to introduce advanced incandescent bulbs by 2010 was undermining efforts to advance energy-efficiency goals sooner.

"I don't think we should wait until 2010, because there are alternatives available now," said Van Deursen, predicting that the days were numbered for the Edison bulb as CFLs and eventually light-emitting diode (LED) technology gained market share. "We believe there are better technologies going forward."

GE lashed back, saying nobody should be dictating which technologies thrive and which die. Stroking U.S. nationalist sentiments, it also said a ban on incandescent bulbs would make the U.S. dependent on non-U.S. manufacturers for "virtually all of its general-purpose lighting." Apparently, 90 per cent of the CFLs sold in the U.S. are made in China.

What they all agree on is that the Edison bulb in its current form is no longer sustainable in a world scared silly by global warming and determined to reduce wasteful energy use in all forms.

About 20 per cent of global electricity consumption is a direct result of the lights we use, and well more than half of that is still based on incandescent technology. But the Edison bulb is an energy abuser, using just 5 per cent of the electricity that flows into it to produce light and letting the other 95 per cent escape into the air as heat.

Now, you could say this isn't a big issue in winter, since most homes and businesses welcome the lost heat, which may offset natural gas or electric heating costs. However, in the summer or in countries with a warm climate year-round, the heat released from incandescents makes air conditioners work harder – a double drain on energy.

CFLs, LEDs and other solid-state lighting technologies hardly release any heat, last much longer and are more durable – you don't get wobbly pieces of thin tungsten breaking in the grocery bag. That said, GE raises a good point: Do you ban the technology or do you establish strict standards by which all technologies must comply?

It's the same argument we're facing in Ontario with coal plants and energy-from-waste facilities. Do you shut down coal plants because they are big polluters that slowly kill the population with toxins and pump the atmosphere with global-warming causing greenhouse gases? Do you take the same approach with new technologies for turning municipal solid waste into energy?

Or, do you set limits on emissions and leave it for bidders to prove that their technology is compliant?

We must also consider a wildcard in the light-bulb debate: mercury.

Each CFL bulb contains an average of 5 milligrams of mercury, a nasty substance that can cause serious illness. Incandescent bulbs don't contain mercury. This means any major shift toward CFLs will require recycling programs that prevent that mercury from going into landfills.

Environmentalists, while encouraging recycling programs, argue that the extra coal-fired generation required to light an Edison bulb releases more mercury into the atmosphere than contained in a CFL fixture. That would be a good argument if all our electricity came from coal-fired generation, but that isn't the case in Ontario, where more than half comes from nuclear, hydroelectric and renewables.

And besides, if GE is claiming its new and improved incandescent bulb can achieve the efficiency of a CFL, then which do you go for: the one that contains mercury or the one that doesn't?

I would have never guessed that changing a light bulb could be so controversial. Where are low-cost, mercury-free, high-quality LEDs when you need them?
 

greg334

Veteran Expediter
Mercury is only one component that we should be concerned about.

The issues surrounding the debate are no brainer for the “Global Warming†crowd, the reduction of the carbon input by changing the bulb is the right thing to do. Mind you that there is actual proof of an electricity savings but consumer electricity usage should not be the only indicator of improvements, there is a need to reduce the use of Mercury Vapor, Metal halide and High Pressure Sodium bulbs too.

What is the use of having two or four 2500 watt lamps pointing at sign 24/7 that no one sees on a rural road or on a back road in a industrial complex?

But I digress....

The issue for me is usability of the design for both the lighting and recycling between the two types of lamps; compact fluorescent lamp (CFL) and incandescent lamp (IL).

Let’s first look at the CFL –
• Glass envelope
• Mercury (as mentioned)
• Different types of inert gas (argon, xenon, more rarely argon-neon or krypton)
• Phosphorous coating to operate
• Electric or electrical-mechanical ballast
• Plastic base with steel plug

Now let’s look at a typical IL –
• Glass envelope
• A filament of tungsten wire
• Either nitrogen, argon inert gas used
• No coating needed to operate
• Standard steel wire for conductivity
• Brass plug with ceramic

OK now that we have a list of basic components; let’s break down the usability of each. Glass sounds normal but in reality the difference is big. The CFL uses thicker glass tubing in comparison to the IL which uses a thin wall blown glass envelope. The energy used in comparison is about 18% to 36% more than the manufacturing an IL. In addition to this, the IL can be manufactured with equipment that is older so the material neutrality is better than the equipment needed to manufacture CFLs.

Mercury is needed for all CFLs, there is no way around this but because it is a hazmat, you can’t just throw it away but it must be recycled. But here is what gets me, very few companies (both users and waste management) handle the florescent lamp as it is something that needs to be recycled. Most of these lamps still end up in the dumpster or if they are in the garbage, get crushed with the rest of the garbage – all releasing mercury into the environment. In order for it to be properly recycled, the community or recycle center needs to have specialized equipment to capture the mercury. The cost of this equipment is around $250K. In addition to this, there are coatings that are harmful to us and the environment that have been used that are used to change the color of the CFL to make it more appealing to the consumer. The argument is that coal power plants put more mercury in the environment than all the CFLs that will be made in the next ten years is somewhat skewed.

The IL uses a filament of tungsten wire, which can be easily recovered and recycled.

When recycling CFL the coatings need to be captured which means different equipment is used to capture the coatings before the glass can be recycled than the mercury recovery equipment. The IL does not need a coating to operate; hence no recovering of a coating is needed.

The CFL has ballast, which has electrical components like capacitors and resisters. It also uses a fiberglass board and lead based solder. The ballast needs to be recycled as electrical equipment. The IL has no ballast, it uses simple steel wire to conduct electricity from the plug to the filament and that is recycled easily.

Many CFL use plastic, some manufactures use plastic that falls under that 15% of plastic that ends up in dumps, but does use steel plugs that can be recycled. The IL uses 100% recyclable parts for the plug, brass and ceramic.

So after all of that, I have to add this stuff.

Manufacturing takes energy, in the case of the CFL the energy used is greater than the energy used to manufacture an IL. This energy needs to come from somewhere, gas and electricity are primaries for the source but with electricity, a lot of this is created by coal power plants and if the CFL are manufactured overseas (like China and India) the amount of pollutants that are put into the environment outweigh the carbon removal with the change to CFL.

Recycling also takes energy, from the picking up or transporting the CFL to the recycling the actual CFL, all take more energy than recycling the IL.

By the way, I do use CFL in different areas of my home.
 

Jayman

Expert Expediter
I smell a conspiracy. Think of all the light fixtures such as chandeliers that will need replaced because CFL bulbs dont have the right "look". LOL :+
 
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