I've never really measured any of my amps (and I have a few systems). Just sold my 14BSST but still use a 6BSST for the center and rears. Over the last couple of years (and the house is now 14 years old), I've replaced the windows and had to replace the 1st zone AC last year and just replaced the 2nd zone. Got new furnaces too. So I really don't consume what I did 3 years back. I have mostly those energy efficient bulbs and even have a battery powered motion detecting light that goes on when I walk down the basement steps to save a few watts. When I got a new bedroom TV about a year and I half back I went with an LED vs. Plasma as while I don't watch tons, it is a bit more energy efficient. I leave the amps off, except when I listen and it's not tons of hours. I'd rather buy something that sounds better and save energy on the bigger things that are on more often.