Monday, March 10, 2014
What's a good price for a 60-watt-equivalent light bulb that uses 75 percent less electricity than a standard incandescent and can last 11 years?
Paul Goudreau, a master electrical specialist at Home Depot in South Portland, hands a light bulb to Alan Grant, maintenance man for Camden National Bank, as Grant shops for light bulbs last week. Goudreau says he tries to enlighten customers who are unsure of the fast-changing bulb options.
Gabe Souza/Staff Photographer
AT A GLANCE
• A typical Maine home has 45 screw-in light sockets, and 15 of those sockets have compact fluorescent bulbs, or CFLs, installed.
• Efficiency Maine has subsidized the sale of 8.7 million CFLs in Maine since 2004.
• In 2012, Efficiency Maine subsidized the sale of 2.1 million CFLs. They cost the program $4.1 million, but will save $43.7 million in electricity costs over the life of the bulbs.
• The effective life of the CFLs is 12.5 years.
Source: The Cadmus Group survey for Efficiency Maine 2011-2012 program evaluation
How about a dime?
That's what Walmart supercenters are charging. The stores are featuring a 10-pack of General Electric compact fluorescent light bulbs for $1.
Prefer a high-tech, light-emitting diode bulb that provides similar brightness for even less energy? Home Depot has launched a sales campaign for a new LED that sells for $12.97. If you screw it into a lamp socket in a baby's nursery today, the bulb is expected to still be working when the kid's in college.
These two bulb promotions illuminate two distinct choices for energy-efficient lighting in Maine. And they raise a question: Should you spend 10 cents, or $12.97, for roughly the same amount of light?
The answer seems to be that CFLs are an interim technology and a steppingstone to a world lit by light-emitting diodes, which are quickly becoming more affordable.
"The CFL is really about saving energy at the lowest cost," said Michael Stoddard, executive director of Efficiency Maine. "With LEDs, it's more about market transformation, getting customers familiar with LEDs and driving down the price over time."
Lighting accounts for less than 10 percent of total home energy use. But Efficiency Maine, which runs the state's conservation programs, has found that switching from incandescent bulbs to CFLs is the most cost-effective energy investment a homeowner can make.
Since 2004, the agency has tapped a fund paid for by electric ratepayers to help subsidize 8.7 million bulbs. It even distributed 400,000 CFLs last year to low-income Mainers, through the Good Shepherd Food Bank. The aggressive promotions have helped Maine achieve one of the highest concentrations of CFLs in the country.
Despite all this, a recent survey revealed that 83 percent of sales in Maine last year were not CFLs, but energy-eating incandescent bulbs.
It seems that many people have never warmed up to CFLs. Some early models were outsized spirals that displayed a harsh light color, took time to fully illuminate and didn't work with dimmers. They also contain mercury, so they need to be carefully recycled.
Current CFLs are much-improved; several models give off a warm light and can be dimmed. But many people remain turned off, said Jim Ford, an assistant manager at the Home Depot in South Portland.
"I'm not surprised," Ford said of the Efficiency Maine survey. "Maine people don't like change, and the number one reason I hear from customers is they're still not happy with the way CFL light looks."
That feedback has Home Depot focusing on LEDs, which Ford said now outsell CFLs three-to-one. LEDs are stacked along prime shelf space in the light bulb section, which at Home Depot runs an entire aisle.
Behind this trend, an industry expert says, is a scramble for market share. The days when a light bulb burned out in a year and needed to be replaced are fading fast.
"There are roughly 4.4 billion screw-in sockets in the United States," said Terry McGowan, director of engineering at the American Lighting Association. "Manufacturers know they have one chance, because it could be 25 years before they're available again. So they're doing everything they can to fill those sockets with their products."
This spring, the Home Depot chain began an exclusive partnership with Durham, N.C.-based Cree, Inc. to promote a new, omnidirectional LED bulb. It has the same warm, white light and shape of a traditional incandescent bulb, but will last for 20 years and use one-sixth of the electricity. A Cree display in the South Portland store proclaims: "The biggest thing since the light bulb."
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