Smart appliances will figure out how to save you
energy
Jan 19 - McClatchy-Tribune Regional News - Michael Milstein The Oregonian,
Portland, Ore.
If you could save energy, would you?
A new generation of home energy monitors and intelligent appliances that can
respond to signals from the grid, saving power when it's priciest, are
slowly creeping into homes in the Pacific Northwest. They may now be only a
few years away from becoming commonplace, utility leaders and energy
efficiency experts say.
They will give consumers more power over their power. The question is how
quickly consumers will adopt them and start using them.
Super-efficient Energy Star appliances have already become the standard in
new homes. The next step is to adjust the way the appliances behave -- when
they burn power and when they don't -- in ways that save both energy and
money.
For instance, clothes dryers might get a signal to switch off their heating
elements when energy is at a premium -- continuing to tumble clothes -- and
then back on when demand eases. Air conditioners might wait a few minutes
before cycling back on -- although consumers could override the delays if
they want to.
Right now many dishwashers have delay features, allowing users to set them
to run in the middle of the night when electricity is plentiful. But few
people use that feature, said Mike Beyerle, a marketing manager at General
Electric. A "smart" dishwasher could do that on its own, or at the signal of
a utility trying to control power demands.
"What we're finding is that people will accept the delay," he said. "They
don't oppose it. They just don't want to deal with it themselves."
He says it's likely that within a few years, such intelligent appliances
will be as commonplace as energy-saving Energy Star appliances are today. It
may mean a shift in behavior for people, too: for instance, people might
spread their laundry over a few days, accommodating their dryer's slower
schedule, rather than a single "laundry day."
They wouldn't necessarily have to, but doing so could save them money.
The more "smart appliances" appear in homes, the more could respond to
signals to ease up on their power consumption at key peak times when
electricity is at a premium. That would make the whole energy grid smarter
and more efficient, and help utilities such as Portland General Electric
avoid building new generators that burn fossil fuel and emit greenhouse
gases.
"Instead of building a power plant to serve those few hours of peak demand,
we'd rather work with customers to limit the demand," said Joe Barra, PGE's
director of customer energy resources.
It takes a step toward the "Smart Grid" concept promoted by President-elect
Barack Obama, to make the national energy system make better use of
increasingly stretched power supplies.
"A Smart Grid has little or no value without smart appliances attached to
it," said Tom Reddoch, executive director of energy utilization at the
Electric Power Research Institute. He said the main hurdle is standardizing
systems so smart appliances all understand a common language.
Right now digital monitors that cost around $100 and sit on your kitchen
counter can tell you exactly how much electricity you're burning at any
given moment, and how much it's costing you. The idea is that knowledge is
-- quite literally -- power and that you'll behave accordingly when you can
watch a kind of odometer for your home. When you see your money ticking away
because you left the lights on, you'll be more careful about turning them
off.
"When you have the water heater on, you're less likely to leave the water
running when you're doing the dishes," said Nick O'Neil, a planning engineer
at Energy Trust of Oregon, who has had one of the monitors in his home for
close to a year.
Energy Trust offered more than 100 of the monitors to residential energy
customers for the discounted rate of only $30 and most were snapped up in
less than an hour. Energy Trust has no more, but they can be purchased
online at www.bluelineinnovations.com.
So-called "smart homes," where appliances operate automatically or respond
to a button on your cell phone have been on the horizon for years. But what
might finally make them reality is the increasing drive to save energy and
not build power plants that contribute additional greenhouse gases. More
utilities are moving toward "tiered pricing" -- charging more for power at
times of peak demand.
"When people are faced with the prospect of having higher electric bills,
they will look for ways to save," said Beyerle of General Electric, which is
introducing new smart appliances this year. "The big motivations are going
to be energy cost and energy scarcity."
Many appliances have some of the needed intelligence built into them. It's a
small step for a dishwasher to go from deciding how much grime there is on
dishes to deciding when to back off energy consumption, said Carl Imhoff,
who manages the commercial energy market sector at the Pacific Northwest
National Laboratory in Richland, Wash. The laboratory has run pilot tests of
smart appliances in Portland and Washington's Olympic Peninsula and found
that 80 percent to 90 percent of homeowners liked the technology and would
use it again.
About 10 percent of power generation capacity and 25 percent of smaller
distribution lines, worth hundreds of millions of dollars, is used only
about 400 hours a year -- those times of peak demand, such as cold snaps or
heat waves, when electricity is in intense demand, he said. That makes such
power especially expensive to bring online.
"If you can just take advantage of a little bit of intelligence in the
appliance, it can sometimes be cheaper and greener than the alternative of
bringing new generation online," Imhoff said.
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