Eco-friendly TV: Which 37″ LCD televisions are the most efficient?

October 13, 2007

LG LCD 37Time to talk TV’s, and their power consumption. Today we will look specifically at the power consumption of 37″ LCDs. This is a typical television that many of us hang on the wall in our kitchen as part of the home remodel project.

Before we get to the TVs, let’s discuss power consumption for a moment. There are two parts of power consumption when talking televisions. The first is Standyby Power Consumption (when your TV is turned OFF), and the second is On Mode Power Consumption (when you TV is turned ON)

Standby Power Consumption is what ENERGY STAR uses to rate TVs today. This is the energy your TV uses while it is just sitting there during the day. It is the lowest power consumption mode that cannot be switched OFF by a homeowner. To qualify for ENERGY STAR a television must not exceed 1 watt of power consumption in Standby Mode. The Department of Energy says, that Standby power consumption of an ENERGY STAR compliant TV uses about 30% less energy than standard sets.

As of today, there is NOT an ENERGY STAR rating for On Mode Power Consumption. On Mode is the one we are probably most aware of…you know, this is the mode our kids like to use when they leave their rooms and run outside. In September 2008, ENERGY STAR will produce ratings for television On Mode power consumption (this is really great). Right now it looks like a 37″ LCD like the ones we present below, would be allowed to consume no more than 190W of On Mode power – estimate.

hp tv energy starToday, don’t let an ENERGY STAR logo fool you. This is only a logo for Standby Mode. How misleading can this be? Well, the most efficient television on the ENERGY STAR list is from Hewlett-Packard (HP) with a Standby Mode consumption of 0.3W, but in On Mode this TV consumes 220W – the highest consumption device on the list! Not good.

So if ENERGY STAR doesn’t rate On Mode power consumption, what can YOU do? Where can you find your TV’s power consumption? Well, you dig on the internet, you dig into manuals, and you troll through datasheets and marketing literature…for hours. Typically the last line on the datasheet, or the last page in the manual will give you power consumption. Or, you come to, because we do the dirty work for you 🙂

This week, here is what are trolling dug up for you on 37″ LCD TVs that qualified for ENERGY STAR in Standby Mode (in order of best Standby Mode):

Manufacturer Model Standby On Mode

Hewlett-Packard LT3700 0.3W 220W
Hewlett-Packard LC3772N 0.3W 220W
LG LB5DF-UC 0.3W 170W
LG 37 LB4DS-UA 0.4W 165W
LG 37 LC7D-UB 0.5W 177W
Philips 37PFL5332D/37 0.75W 190W
Philips 37PFL7332D/37 0.75W 200W
Sharp LC37GP1U 0.9W 165W
Samsung LN-T3732H 0.9W 180W
Sharp LC37D62U 0.9W 198W
Sharp LCC3742U 0.95W 185W
Sharp LC37D43U 0.95W 185W
Sharp LC37D42U 0.95W 185W

energy star logo tvThe LG’s give a green thumbs up!!

We want you to know that there are other models (and manufacturers) that qualify for ENERGY STAR, but these other models do not offer homeowners, and consumers On Mode power consumption on the internet in a way that easy to find. So either they have something to hide, or they are not concerned with offering us the information. Or are they just concerned with getting the ENERGY STAR logo because it is good marketing??? So we made an editorial decision to leave them off, because we feel that On Mode power consumption is extremely important to make public — this is the mode that hits our environment the hardest.

Note: If you are a manufacturer, and you want to update our list with your product, then please provide us (and our audience) with your specs!

Finally, we want to give a green round of applause for the Sharp team who makes power consumption information the most readily available and discoverable for homeowners. We need to give a green thumb down for Samsung where finding On Mode consumption is hard, and in most cases utterly impossible to find.

Check back soon, as we translate the power savings into dollar savings for you. Sign up for our free product Newsletter and you won’t miss it!

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