Elisa WoodBy Elisa Wood
March 8, 2012

 

US Congresswoman Michele Bachmann often asks why government should tell us which kind of light bulb to choose. Turns out it’s a question with a trillion dollar answer.

 

We will save $1.1 trillion through 2035 because of existing energy efficiency mandates for light bulbs and appliances, according to a report issued this week by the American Council for an Energy-Efficient Economy and the Appliance Standards Awareness Project.

 

The Efficiency Boom: Cashing In on the Savings from Appliance Standards” says the standards will cut our energy use 200 quads, the equivalent of the US using no energy for two years. The standards already have reduced our energy use 3.5 percent.

 

This means lighting and appliance standards have saved more energy than almost any other efficiency program, says the report.

 

Bringing the numbers close to home, the average household will save about $30,000 over 45 years, or enough to cover two years of typical mortgage payments, under existing and new standards. This assumes the household changes major appliances every 15 years.

 

It’s important to note that Bachmann’s assertion – that the government is choosing light bulbs – is an oversimplification. The standards do not mandate any particular kind of lights, but call for manufacturers to achieve a certain level of energy efficiency. True, an old technology may not make the cut. Oddly, though, no one seems worried about losing access to inefficient air conditioners, computers or other appliances. Anti-standards folks, like Bachmann, seem attached only to inefficient light bulbs. (This bewilders me.)

 

US appliance standards go back to 1974 when then-Governor Ronald Reagan signed a bill to bring greater efficiency to major appliances in that state. Other states followed, but the federal government didn’t get on board until 1987.  Again it was Reagan, this time as President, who signed the first bill. Additional standards became law under President George Bush and President George W. Bush.  Since then, the Department of Energy has further updated standards. About 55 products are covered; not only lighting, but also refrigerators, air conditioners, motors and other appliances.

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Elisa WoodBy Elisa Wood
September 14, 2011

Americans report in surveys that they are likely to retire later than expected as a result of this economic downturn that doesn’t seem to want to quit.  While that’s bad news for golf courses and Florida real estate, it helps one industry: energy efficient lighting.

We are squinting, rather than sprinting toward retirement these days. As part of the post-50 crowd, I very much appreciate good lighting in my work space, and I discovered that I am not alone in researching a recent report on lighting.

Why do we geezers need better lighting? A 60-year-old employee’s eyes receive only 40 percent as much light as a worker who is 30 to 40 years younger, according to a paper by Leviton. These older employees tend to dislike the one-size-fits-all lighting of most commercial buildings; in fact, find it stressful.

Lighting is best when tailored to the needs of the individual. This can be done by giving employees manual override of automated lighting, so that they can adjust brightness and color depending on what they are doing in their work station at any given moment. And of course that is one of the features touted by lighting control manufacturers – the ability of consumers to customize lighting preferences.

Why worry so much about worker comfort? Happy workers tend to stay in their jobs, and that saves employers money, says a white paper “Personal Control: Boosting Productivity, Energy Savings” by the Lighting Controls Association. New employees need about 13.5 months on the job to achieve maximum work performance. As a result, worker turnover costs a business about 1.2 to 2 times the salary allotted for the position. Research indicates that workplace design plays a significant role in employee satisfaction. And right now many people dislike the lighting, heat and acoustics of their workplace, even young folk.

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Cara MialeGuest blog by Cara Miale
September 8, 2011

Last week, we looked at how the energy efficiency industry is working on its cool factor (Dare I say sex appeal?), to make clean energy more accessible to the masses.

Perhaps a bikini charger doesn’t make much difference when the grid is under great strain as it was this summer; but it does get people thinking about alternatives that could lead to – or add up to – more important changes.

Time to shed some light on lighting. An energy efficient approach to lighting has gained traction in the commercial world – with wireless controls, dimmers and a clear ROI for building owners. But so far, consumer touch points have largely revolved around bulb efficiency standards – which are dull, governmental and even intrusive.

There are very cool things on the horizon, like Professor Haas’ LED-light-based data transmission, which could feed our hunger for greater capacity for cell phones and all things Wi-Fi. Here are some other lighting innovations that might generate excitement at home (or rather, at your slick downtown condo):

  • Mood lighting made simple. No, please – don’t get up. This LED lightbulb from Sharp comes with a tiny remote that allows you to turn the bulb on and off, increase or decrease the brightness and even adjust the color temp (for mood lighting, perhaps?) all without lifting a finger (er, ok, barely lifting a finger). Its life is long, its efficiency impressive, but perhaps more importantly – it has novelty potential we haven’t seen since the clap-on, clap-off lamp control. The bulbs start around $40 – not cheap for the average consumer – but then again, what are a couple of Jacksons compared to how smooth you’ll look on date night?
  • Party on the patio. The Oasys from Sol is a complete unit that houses their aiSUN controller, batteries, and LED fixture. When darkness falls, the party doesn’t have to end: reliable light (and again, spiffy dimming capabilities) can be yours. Although we must say, their website needs a few tips on more accessible language if they’re going to get through to us.
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Elisa WoodBy Elisa Wood
August 24, 2011

Am I average?

That’s the question that often hits me when someone quotes an ‘average’ statistic. The ‘average’ business or household seems almost mythological. Few of us fall right on that point on the line.

The same is true when it comes to often quoted energy efficiency savings statistics. For example, the US Environmental Protection Agency says that replacing one old-fashion incandescent light bulb with a compact fluorescent light will save on average $69 over the product’s lifetime.

Will your business save that much by installing new light bulbs?

Several factors come into play, some that you can control, the most obvious being how much you turn on the light.

Another important dynamic, not often discussed, is your electric rate. 

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Elisa WoodBy Elisa Wood
Aug. 4, 2011

Talk about a light bulb moment.

A professor of engineering at Edinburgh University recently demonstrated for the first time to a wide audience his technology that uses common every day lights to transmit data.

Harald Haas streamed a video through a desk lamp at Ted Global 2011at Scotland’s Edinburgh International Conference Center in July.

If commercialized, the technology not only creates a vast new application for light, but also dramatically expands our now limited wireless capacity. Imagine downloading your email from any of the14 billion light bulbs installed in the world.

Haas’ technology swaps out our current way of transmitting data – through radio frequency – with a new approach using visible light from LED light bulbs. This is significant because we are running out of radio frequency spectrum as our appetite for wireless communication grows, Haas says. The visible light spectrum, on the other hand, is enormous, with about 10,000 times more capacity than radio frequency. Using light instead of radio frequency would give us a lot more capacity for our cell phones, wireless computers and other devices.

The energy implications are even more interesting.

First, the technology creates a new impetus for switching from incandescent light bulbs to LEDs. Until now, LED champions have argued their cause based on the light bulb’s energy efficiency. It’s a good argument, but not one that always motivates the consumer. With Haas’ technology the LED takes on new importance. LED lights are necessary because they contain a semi-conductor; incandescent light bulbs do not.

Second, the whole process of transmitting data through light is more energy efficient than using radio frequency, according to Haas. Think of it this way. We have 1.4 million cellular masts, or base stations, that now allow us to transmit data through our 5 billion cell phones worldwide. These base stations use a lot of energy, particularly for cooling, operating at only a five percent efficiency level, according to Haas.  What if instead we transmitted data through the 14 billion light bulbs already installed worldwide? Haas says he’s calculated the “energy budget” and found light-based data transmission to be so efficient, it is virtually free.

“It should be so cheap that it’s everywhere. Using the visible light spectrum, which comes for free, you can piggy-back existing wireless services on the back of lighting equipment,” he says.

The technology offers some other advantages as well, particularly privacy, convenience and health assurances.

Light is more secure than radio waves. Light does not penetrate walls and radio waves do. So it appears that it would much more difficult to hack your calls via light wave than radio wave.

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