Which appliance consumes the most power in your home? The refrigerator? The washer, dryer, or TV? The culprit may be a much less imposing energy beast, if you (like over 80% of Americans) have a DVR and set-top cable or satellite box. That’s right, those seemingly innocuous glowing little boxes can combine to suck more electricity than an Energy Star refrigerator, according to a study by NRDC.
The ~160 million DVRs and set-top boxes in the US now drain about $3 billion worth of electricity per year, the equivalent of nine 500 MW coal-fired power plants. That’s more power than used by the entire state of Maryland! And the real kicker is that 2/3 of that energy is consumed when these devices are supposedly “off.” Unfortunately, these little buggers never really die: the lights may go off, but they’re still sucking over 90% what they would while on. And that power drain happens 24/7, 365 days a year. Thus, an HD DVR typically consumes more power than the TV it’s connected to.
So the trick-or-treaters may be long gone from your doorstep, but you’ve still got some big energy vampires lurking in the darkness. The good news is that Buffy [the vampire slayer] is now on the way via a new EPA Energy Star 3.0 standard that mandates substantial improvements over the 2.0 version, and the cable industry (which owns most boxes) recently announced voluntary efficiency measures after all the bad press. But the only way to truly curb your boxy vampires’ appetite is to put them on a power strip that you switch off when you’re not watching TV or recording Buffy reruns. Or join the hipster kids and just stream it all online.