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Posts Tagged ‘television’

They’ve found the key to saving energy

Posted in Electronics, Energy conservation, Heating and cooling, Lighting, Uncategorized on June 4th, 2010 by Susan – Be the first to comment

This chip tells controls at Sleeping Lady Resort that guests have arrived so it's time to adjust the thermostat and turn on the lights.

The operators of Sleeping Lady Mountain Resort in Leavenworth believe they may have found a key to saving energy. Actually, 40 keys.

In April, 40 of the resort’s 58 guest rooms were outfitted with the Entergize key fob system. When guests enter these rooms, they insert a small chip attached to their room keys into a special light switch. This sends a signal to the upper half of the rooms’ electric receptacles and thermostats, putting them in the “occupied” mode. Some of the lights go on and heat or air conditioning comes on to pre-programmed settings. When guests leave their rooms they remove the key and fob from the control switch, which causes the lights to go off and the heating and cooling system to drop into the “unoccupied” energy-saving mode.

Ken Erikson, maintenance technician at Sleeping Lady, said the goal is to automate energy savings. Guests don’t mean to waste energy, he said, but it happens. For example, a couple out for a winter walk might crank the heat way up when they return to their room, then leave for dinner and forget to turn it down. With the new system, setback will occur automatically.

A majority of rooms at Sleeping Lady have been outfitted with energy-saving setback systems.

Entergize claims energy use in guest rooms can drop by up to 45 percent, but Erikson isn’t expecting savings that dramatic. Sleeping Lady has no TVs, so the resort can’t be compared to hotels where TVs, even in standby mode, are using power. Erikson said Sleeping Lady’s goal is to save energy over the long term.

Greg Felix, Entergize contractor who installed Sleeping Lady’s system, said he’s done work all over the country, including at actor Ed Begley’s home. The company’s work was featured on a History Channel Modern Marvels episode that focused on ways to reduce phantom load — the energy drain caused by cell phone chargers, TVs and other appliances that are left plugged in and continue to draw power. You can watch that show here.

Put an energy-saving TV under the tree

Posted in Electronics, Energy conservation on December 10th, 2009 by Susan – Be the first to comment

santa_tv_webIf a TV is on your Christmas wish list, consider selecting one of the new super energy-efficient models. The Northwest Energy Efficiency Alliance (NEEA) has worked with major retailers to stock shelves with super-efficient televisions at reasonable cost. The super energy-efficient models are 30 percent more energy efficient than the lowest-rated Energy Star models.

An average plasma TV uses 338 watts. An average LCD uses 176 watts. Depending on how much you watch TV, a new set can add significantly to your power bill. Power consumption is affected by type of TV (plasma or LCD), size of the screen, picture settings, and whether your set has power-saving features. A comprehensive guide to TV power consumption is available here.

In a news release, NEEA spokeswoman Stephanie Fleming said 70 percent of all televisions are sold during the fourth quarter of the year. NEEA expects at least 1 average megawatt in fourth-quarter energy savings through the project – enough energy to supply about 500 Northwest homes.

Related articles
Super energy-efficient TVs available this holiday season (Oregon Statesman Journal)
Television buying guide (CNET)
California approves new energy efficient TV regulations (California Energy Commission)

Power use
Average plasma: 338 watts
Average LCD: 176 watts
PlayStation 3: 197 watts
PlayStation 3 Slim: 96 watts
Xbox 360 Elite (2007): 185 watts
Nintendo Wii: 19 watts
Xbox 360: 187 watts
Average PC: 118 watts
DirecTV HR20 DVR: 33 watts
Slingbox: 9 watts
Wireless router: 7 watts
Source: CNET.com

Welcome to the House of Savings

Posted in Appliances, Electronics, Energy conservation, Heating and cooling, Lighting on August 14th, 2009 by Susan – Be the first to comment

houseofsavings_lightly1Need help finding energy savings in your home? Step into the House of Savings and reduce your energy bill.

The House of Savings is a new interactive feature on Chelan County PUD’s Conservation Web page. Place your mouse over a feature in the house and a pop-up box provides tips on saving energy and money. Hover over the thermostat, for example, and you’ll learn that for every degree you set your thermostat lower (or higher for summer cooling) you can reduce your power bill by 2 percent. The items also contain links to related information.

The house is a collaborative effort of  technology, graphics and conservation staff at the PUD. Come on in!

Screening energy use in big TVs

Posted in Appliances, Electronics, Energy conservation on February 23rd, 2009 by Susan – Be the first to comment

tv_webThat big new HDTV in your living room may be costing you more than just your monthly payments. Many of the new big-screen TVs consume plenty of power.

It’s a problem that’s beginning to get some attention. California regulators are drafting rules that would require retailers to sell only energy-efficient flat-screen TVs. According to the Los Angeles Times, during a peak viewing time when most sets are on, such as the Super Bowl, TVs in California collectively suck up the equivalent of 40 percent of the power generated by the San Onofre nuclear power station running at full capacity. Televisions account for about 10% of the average Californian’s monthly household electricity bill.

Just how much does it cost to operate a flat-screen TV? That depends on the type of TV. The electronics Web site CNET tested 139 TVs, rating them by watts used per square inch as well as overall costs. Applying Chelan County PUD power rates to CNET’s calculations, energy costs would range from a low of $7.86 per year to run a Philips 42-inch LCD model to $52.53 per year to power a 58-inch plasma-screen Panasonic. (CNET used the annual average cost of 10 cents per kilowatt hour for its calculations; Chelan County PUD’s cost is 2.9 cents per kilowatt hour).

Depending on the technology behind the TV, energy costs can vary dramatically. Standard sets use a cathode ray tube, with those smaller than 40 inches drawing roughly 73 watts when on. An average flat-screen LCD TV of the same size also uses 70 watts, while a similar plasma TV consumes an average 246 watts.

If you’re still shopping for a new set, or just curious about your power use, you can calculate your costs using this formula:

Wattage X Hours Used / 1,000 = Kilowatt Hours (KWH)

Then multiply the kilowatt hours used times the cost of power (the average cost for Chelan PUD customers is 2.9 cents per kilowatt hour).

Blue Energy Star labels began appearing in November on all TVs that use less energy when turned on. Before November, Energy Star labels only indicated how efficient a set was when it was turned off.

You can stop your TV from drawing any power at all by unplugging it, or by plugging it into a power strip that can be switched off.

Related links
How Much Do Your Appliances Cost to Operate? (Chelan PUD brochure)