I measured the box's consumption by plugging it into my awesome Kill -A-Watt power meter and measuring the wattage.
Surprisingly, I found that my cable box consumes just about as much power when "off" than when "on"!
Here's what I measured with my Kill-O-Watt meter:
- "Power Off": 30 watts
- Watching TV: 31 watts
- Recording TV: 31 watts
- Playing back a recorded program: 31 watts
Why provide a power button when it makes so little difference in power consumption? Who knows!
So I did some math to figure out how much 30 watts of consistent power use costs, using recent prices for electricity around here:
(17¢ per kwh x 30 watts x 8760 hours per year ) / 1000 = $44.67 per year
Amazing - think about it - according to my analysis, perhaps 5 million people pay $44 per year for the electricity for a cable TV box that's mostly powered off! That's approaching a quarter of a BILLION dollars in electricity every year, thrown away!
This isn't "green" - it's "stupid".